republic of kenya - Kisumu County
(g) Form of Bid, Appendix to Form of Bid and Bid Security ... all instructions, condit
ions, forms, terms, specifications and drawings in the bidding documents.
part of the document
THE COUNTY GOVERNMENT OF KISUMU
DEPARTMENT OF ROADS, TRANSPORT AND PUBLIC WORKS
T E N D E R D O C U M E N T
FOR
THE PROPOSED
TENDER NO: CGK/RT&PW/CRF/MTC/18-19/060
Funded by:
COUNTY REVENUE FUND,
FY 2018/19
Client: Project Manager:
Chief Officer, Sub-County Roads Engineer
Roads, Transport and Public Works Central Sub-County
County Government of Kisumu County Government of Kisumu
P.O BOX 2738-4000 P.O. Box 2738-40100,
Kisumu Kisumu.
TABLE OF CONTENTS
INTRODUCTION
..3
INVITATION TO TENDER
.4-6
Section A: INSTRUCTION TO TENDERERS
..7 -21
Section B: TENDER EVALUATION CRITERIA
.22-30
Section C: CONDITION OF CONTRACT
.........31-55
SECTION D: SPECIFICATION: SPOT IMPROVEMENT
..56-123
SECTION E: DRAWINGS
.
..124-145
SECTION F: BILL OF QUANTITIES: Preamble
...146-147
BILL OF QUANTITIES: Measured works
148-156
SECTION G: STANDARD FORMS
.
..157-178
INTRODUCTION
1.1 This standard tender document for procurement of works has been prepared for use by procuring entities in Kenya in the procurement of works (i.e. Road Works and associated Civil Engineering Works).
1.2 The following guidelines should be observed when using the document:-
(a) Specific details should be furnished in the Invitation to tender and in the special conditions of contract (where applicable). The tender document issued to tenderers should not have blank spaces or options.
The instructions to tenderers and the General Conditions of Contract should remain unchanged. Any necessary amendments to these parts should be made through Appendix to instructions to tenderers and special conditions of contract respectively.
1.3
Information contained in the invitation to tender shall conform to the data and information in the tender documents to enable prospective tenderers to decide whether or not to participate in the tender and shall indicate any important tender requirements
The invitation to tender shall be as an advertisement in accordance with the regulations or a letter of invitation addressed to tenderers who have been prequalified following a request for prequalification.
The cover of the document shall be modified to include:-
Tender number.
Tender name.
Name of procuring entity
2.INVITATION FOR TENDERS
Tender reference No: CGK/RT&PW/CRF/KC/MTC/18-19/060
1.1 County Government of KISUMU invites bids from Prequalified and eligible construction companies registered with the National Construction Authority ( NCA) or equivalent in the categories mentioned in the tender notice. CONSTRUCTION OF MBITA/SEGASEGA TWIN CULVERT Contract No. CGK/RT&PW/CRF/KC/MTC/18-19/060 situated in Central Sub-County, Railways Ward to be funded through CRF budget
SCOPE OF WORK
The scope of works shall be as described in the tender document
QUALIFICATION FOR TENDERING
MANDATORY REQUIREMENTS
Tenderers MUST include the following information and documents with their Tenders:
Certified copy of Certificate of Incorporation,
Certified copy of VALID Registration Certificate with the National Construction Authourity in the classes specified in the tender notice.
VAT and PIN registration,
A copy of VALID Tax Compliance Certificate from Kenya Revenue Authority (KRA),
Bid bond 2% of the tender sum,
Certified copy of RECENT CR12 FORM ( WITHIN 12 MONTHS) from registrar of companies.
Certified copy of Single Business Permit preferably from Kisumu County.
Bidders shall sequentially serialize all pages for each tender document submitted failure to which the bidder shall be disqualified.
Certified copy of Certificate of registration for access to government procurement opportunities from the ministry of National Treasury for tenders in the special categories.
Certification must be by a commissioner for oaths.
Other requirements are as specified in the tender notice and this tender document.
OTHER REQUIREMENTS
As specified in the tender documents covering the following
Eligibilty.
Similar previous experience.
Current workload.
Plant and Equipment holding.
Professional and technical personnel.
Audited financial statements for the last three years (2015 2017) provided. Companies registered within the last one year should submit certified bank statements for at least twelve months or the duration of registrationLitigation history (Current Sworn Affidavit).
Note.
Bidders with history of Non-performance (eg failure to complete the projects for the last three financial years, Notice of termination or termination of contracts in the last three financial years will be Disqualified.
Any form of canvassing will lead to automatic disqualification.
The complete set of tender documents may be downloaded from the Countys website ie HYPERLINK "http:// www.kisumu.go.ke" www.kisumu.go.ke . Completed Tender Documents are to be enclosed in plain sealed envelopes marked with Tender name and reference number and deposited in the Tender Box located at the Main Reception, County Government of Kisumu Headquarters, Prosperity House 2nd Floor or to be addressed to The chief officer department of Roads ,transport and public works, County Government of Kisumu, P.O Box 2738-40100 Kisumu so as to be received on or before
.., at
..
Prices quoted should be net inclusive of all taxes, must be in Kenya shillings and shall remain valid for 90 days from the closing date of tender.
Tenders will be opened immediately thereafter in the presence of the candidates or their representatives who choose to attend at Prosperity House- 1st floor Boardoom.
Late bids will be not be accepted.
________________________________
. Tenders must be accompanied by an original tender Security of 2% of the tender sum in form of a guarantee acceptable under the Public Procurement and Asset Disposal Act, 2015 and Public Procurement and Disposal Regulations 2006 payable to the County Government of KISUMU.
Interested eligible candidates may obtain further information and inspect Tender Documents and the Design Drawings at County Government of Kisumu Headquarters, Kisumu City at the Procurement Office during normal working hours.
INSTRUCTIONS TO TENDERES
TABLE OF CONTENTS
A.
1GENERAL
.. 6
SCOPE OF BID....................................................................................... 62Source Of Funds ............................................................................ 63Corrupt Practices ........................................................................... 64Eligible Bidders............................................................................... 75Qualification Of The Bidder ............................................................ 76Cost Of Bidding .............................................................................. 87Site Visit ......................................................................................... 8B.BIDDING DOCUMENTS ...................... .................................................... 88Contents of Bidding Documents....................................................... 89Clarification of Bidding Documents.................................................. 910Amendment of Bidding Documents .................................................. 9C.PREPARATION OF BIDS ....................................................................... 1011Language of Bid .............................................................................. 1012Documents Comprising the Bid ...................................................... 1013Bid Prices ....................................................................................... 1014CURRENCIES OF BID AND PAYMENT ............................................. 1015Bid Validity ..................................................................................... 1116Bid Security .................................................................................... 1117PRE-BID MEETING......................................................................... 1218Format and Signing of Bids ............................................................. 12D.SUBMISSION OF BIDS ............................................................................ 1319Sealing and Marking of Bids ............................................................ 1320DEADLINE FOR SUBMISSION OF BIDS............................................ 1321LATE BIDS ....................................................................................... 1422Modification, SUBSTITUTION and Withdrawal of Bids ...................... 14E.BID OPENING AND EVALUATION............................................................... 1423Bid Opening...................................................................................... 1424Process to be confidential ................................................................ 1525clarification of bids and contacting of the employer ........................ 1526Examination of bids and determination of responsiveness ............... 1527Correction of errors ....................................................................... 1628Evaluation And Comparison Of Bids ................................................1729Qualification And Evaluation Criteria
.18F.AWARD OF CONTRACT ............................................................................ 1930Award .............................................................................................. 1931Employer's right to accept any bid and to reject any or all bids ....... 1932Notification of award ................................................................... 1933Signing of agreement..................................................................... 2034Contract effectiveness ................................................................. 2035Performance security
.2036Execution of Works
2137Bid Securing Declaration
..22 INSTRUCTIONS TO TENDERERS
A. GENERAL
1 SCOPE OF BID
1.1 The Employer as defined in the Appendix to Conditions of Contract invites Tenders for the Works Contract as described in the Tender Documents.
1.2 Procurement shall be based on open tender method and the above will be submitted with the priced bid. The successful bidder will be expected to complete the Works within the period stated in the Appendix to Conditions of Contract from the date of commencement of the Works.
1.3 Throughout these bidding documents, the terms bid and tender and their derivatives (bidder/tenderer, bid/tendered, bidding/tendering etc) are synonymous, and day means calendar day. Singular also means plural.
2 SOURCE OF FUNDS
2.1 The source of funding is the County Government of Kisumu through RMLF funds or CRF Funds.
3 CORRUPT PRACTICES
3.1 The government requires that the bidders, suppliers, sub contractors and supervisors observe the highest standards of ethics during the execution of such contracts. In this pursuit of this policy, the government;
Defines for the purpose of this provision, the terms set forth below as follows:
i) corrupt practice means the offering, giving ,receiving, or soliciting of anything of value to influence the action of the public official in the procurement process or in the execution, and
ii) fraudulent practice means a misrepresentation of facts in order to influence a procurement process or the execution of a contract to the detriment of the employer, and includes collusive practices among bidders (prior to or after bid submission) designed to establish bid prices at artificial, non-competitive levels and to deprive the employer the benefits of free and open competition
The Employer Shall reject a proposal for award if it determines that the bidder recommended for award has engaged in corrupt or fraudulent practices in competing for the contract, and
The Employer Shall declare a firm ineligible, either indefinetly or for a stated period of time,to be awarded a government contract if it at any time it is determined that the firm has engaged in corrupt or fraudulent practices in competing for, or in executing, a government financed contract
4 ELIGIBLE BIDDERS
4.1 This invitation to bid is open to all bidders who are legally registered or incorporated in the Republic of Kenya as of the time of bid submission. Registration with the National Construction Authority (NCA) as a contractor is mandatory.
4.2 Bidders shall not have a conflict of interest. Bidders shall be considered to have conflict of interest, if they participated as a consultant in the preparation of the design, documentation or technical specifications of the works that are the subject of this bidding other than as far as required by the Employer.
4.3 A firm that is under a declaration of eligibility by the Employer in accordance with clause 3, at the date of submission of the Bid or thereafter, shall be disqualified.
4.4 Bidders shall provide such evidence of their continued eligibility satisfactory to the Employer as the Employer shall reasonably request.
5 QUALIFICATION OF THE BIDDER
5.1 Bidders shall as part of their bid:
(a) Submit a written power of attorney authorizing the signatory of the bid to commit the bidder; and
(b) Update any information submitted with their bids and update in any case the
information indicated in the schedules and continue to meet the minimum threshold criteria set out in the bid documents.
5.2 As a minimum, bidders shall update the following information:
(a) evidence of access to lines of credit and availability of other financial resources
(b) financial predictions for the current year and the two subsequent years, including the effect of known commitments
(c) work commitments
(d) current litigation information; and
(e) availability of critical equipment
5.3 Bidders shall also submit proposals of work methods and schedule in sufficient detail to demonstrate the adequacy of the bidders proposals to meet the technical specifications and the completion time referred to in Clause 1.2 above.
6 COST OF BIDDING
6.1 The bidder shall bear all costs associated with the preparation and submission of his bid and the Employer will in no case be responsible or liable for those costs, regardless of the conduct or outcome of the bidding process.
7 SITE VISIT
7.1 The bidder is informed that pre-tender site visit is mandatory and he/she shall examine the Site of Works and its surroundings and obtain for himself all information that may be necessary for preparing the bid and entering into a contract for construction of the Works. The costs of visiting the site shall be at the bidders own expense.
7.2 The bidder and any of his personnel or agents will be granted permission by the Employer to enter its premises and lands for the purpose of such inspection, but only on the express condition that the bidder, its personnel and agents, will release and indemnify the Employer and its personnel and agents from and against all liability in respect thereof, and will be responsible for personal injury (whether fatal or otherwise), loss of or damage to property and any other loss, damage, costs and expenses however caused, which but for the exercise of such permission would not have arisen.
7.3 The Employer will conduct a Site Visit concurrently with the pre-bid meeting referred to in Clause 17, attendance for which is mandatory for all bidders. Failure to attend the site visit by any bidder will lead to disqualification of his /her bid.
The bidders' representatives who are present shall sign a register while the employers representative shall sign the Certificate of Bidders Visit to Site evidencing bidders attendance.
B. BIDDING DOCUMENTS
8 CONTENTS OF BIDDING DOCUMENTS
8.1 The set of documents comprising the tender includes the following together with any addenda issued in accordance with Clause 10:
(a) Invitation to Bid
(b) Instructions to bidders
(c) Conditions of Contract
(e) Standard Specifications
(f) Special Specifications
(g) Form of Bid, Appendix to Form of Bid and Bid Security
(h) Bills of Quantities
(i) Schedules of Supplementary information
(j) Form of Performance Security
(k) Form of Contract Agreement
(l) Drawings
8.2 The bidder is expected to examine carefully all instructions, conditions, forms, terms, specifications and drawings in the bidding documents. Failure to comply with the requirements of bid submission will be at the bidders own risk. Bids that are not substantially responsive to the requirements of the bidding documents will be rejected.
9 CLARIFICATION OF BIDDING DOCUMENTS
9.1 The prospective bidder requiring any clarification of the bidding documents may notify the Employer in writing or by cable (hereinafter the term cable is deemed to include telex, email and facsimile) at the Employers mailing address indicated in the Bidding Data.
9.2 The Employer will respond in writing to any request for clarification that he receives earlier than five (5) days prior to the deadline for the submission of bids. Copies of the Employers response to queries raised by bidders (including an explanation of the query but without identifying the sources of the inquiry) will be sent to all prospective bidders who will have purchased the bidding documents.
10 AMENDMENT OF BIDDING DOCUMENTS
10.1 At any time prior to the deadline for submission of bids, the Employer may, for any reason, whether at his own initiative or in response to a clarification requested by a prospective bidder, modify the bidding documents by issuing subsequent Addenda.
10.2 The Addendum thus issued shall be part of the bidding documents pursuant to Sub- Clause 9.1 and shall be communicated in writing or cable to all all registered prospective bidders who have purchased/downloaded the bidding documents. Prospective bidders shall promptly acknowledge receipt of each Addendum in writing or by cable to the Employer.
10.3 In order to afford prospective bidders reasonable time in which to take an Addendum into account in preparing their bids, the Employer may, at his discretion, extend the deadline for the submission of bids in accordance with Clause 15.2.
C.PREPARATION OF BIDS
11 LANGUAGE OF BID
11.1 The bid prepared by the bidder and all correspondences and documents relating to the bid exchanged by the bidder and the Employer shall be written in the English Language. Supporting documents and printed literature furnished by the bidder may be in another language provided they are accompanied by an appropriate translation of pertinent passages in the above stated language. For the purpose of interpretation of the bid, the English language shall prevail.
11.2 A price or rate shall be entered in indelible ink against every item in the Bills of Quantities with the exception of items which already have Prime Cost or Provisional sums affixed thereto. The bidders are reminded that no nil or included rates or lump-sum discounts will be accepted. The rates for various items should include discounts if any. Bidders who fail to comply will be disqualified.
12 DOCUMENTS COMPRISING THE BID
12.1 The bid to be prepared by the bidder shall comprise:
(a) Duly filled-in the Form of Bid and Appendix to form of bid;
(b) Bid security;
(c) Priced Bills of Quantities;
(d) Schedules of information
(e) Qualification criteria
(f) Any other materials required to be completed and submitted in accordance with the Instructions to Bidders embodied in these bidding documents.
12.2 These Forms, Bills of Quantities and Schedules provided in these bidding documents shall be used without exception (subject to extensions of the Schedules in the same format).
13 BID PRICES
13.1 Unless explicitly stated otherwise in the bidding documents, the contract shall be for the whole works as described in Sub-Clause 1.1, based on the basic unit rates and prices in the Bill of Quantities submitted by the bidder.
13.2 The bidder shall fill in rates and prices for all items of Works described in the Bills of
Quantities, whether quantities are stated or not.
13.3 All duties, taxes (including VAT) and other levies payable by the Contractor under the Contract, or for any other cause as of the date 7 days prior to the deadline for submission of bids, shall be included in the rates and prices and the total Bid Price submitted by the bidder.
13.4 Unless otherwise provided in the Bidding Data and Conditions of Particular Application the rates and prices quoted by the bidder are subject to adjustment during the performance of the contract in accordance with the in
the Conditions of Contract.
14 CURRENCIES OF BID AND PAYMENT
14.1 Bids shall be priced in Kenya Shillings.
15 BID VALIDITY
15.1 The bid shall remain valid and open for acceptance for a period of 90 days from the specified date of bid opening specified in Clause 20.
15.2 In exceptional circumstances prior to expiry of the original bid validity period, the Employer may request that the bidders extend the period of validity for a specified additional period. The request and the responses thereto shall be made in writing or by cable. A bidder may refuse the request without forfeiting his bid security. A bidder agreeing to the request will not be required nor permitted to modify his bid, but will be required to extend the validity of his bid security for the period of the extension.
16 BID SECURITY
16.1 The bidder shall furnish, as part of his bid, a bid security in the amount shown in the Appendix to instruction to tenderers. The bid security must be in form of a certified cheque, bank draft, an irrevocable letter of credit or a guarantee from a reputable Bank/ Insurance approved by PPOA located in the Republic of Kenya
16.2 The bid security shall be in the form of unconditional bank guarantee from a reputable bank selected by the bidder and located in Kenya. The format of the bank guarantee shall be in accordance with bid security included in Section 3. The bid security shall remain valid for a period of one Hundred and Fifty (150) days beyond the original validity period for the bid, and beyond any period of extension subsequently requested under Sub-Clause 15.2.
16.3 Any bid not accompanied by an acceptable bid security will be rejected by the Employer as non-responsive.
16.4 The bid securities of unsuccessful bidders will be discharged/ returned as promptly as possible as but not later than 30 days after the expiration of the period of bid security validity.
16.5 The bid security of the successful bidder will be discharged upon the bidder signing the Contract Agreement and furnishing the required performance security.
16.6 The bid security may be forfeited:
(a) if a bidder withdraws his bid, except as provided in Sub-Clause 22.2.
(b) if the bidder does not accept the correction of any errors, pursuant to Sub- Clause 26.2 or
(c) in the case of a successful bidder, if he fails within the specified time limit to:
(i) sign the Contract Agreement or
(ii) furnish the necessary performance security
16.7 A price or rate shall be entered in indelible ink against every item in the Bills of Quantities with the exception of items which already have Prime Cost or Provisional sums affixed thereto. The bidders are reminded that no nil or included rates or lump-sum discounts will be accepted. The rates for various items should include discounts if any. Bidders who fail to comply will be disqualified.
17 PRE-BID MEETING
17.1 The bidders designated representative with Civil Engineering background is invited to attend a pre-bid meeting, which will take place as indicated in the tender notice. The purpose of the meeting will be to clarify issues and to answer questions on any matter that may be raised at that stage.
The bidders' representatives who are present shall sign a register evidencing their attendance.
17.2 The bidder is requested as far as possible to submit any questions in writing or by cable, to reach the Employer not later than five (5) days before the meeting. It may not be practicable at the meeting to answer questions received late, but questions and responses will be transmitted in accordance with the Minutes of the meeting, including the text of the questions raised and the responses given together with any responses prepared after the meeting, will be transmitted without delay to all bidders who would have attended the meeting. Any modification of the bidding documents listed in Sub-Clause 8.1, which may become necessary as a result of the pre-bid meeting shall be made by the Employer exclusively through the issue of an Addendum pursuant to Clause 10 or through the minutes of the pre-bid meeting.
18 FORMAT AND SIGNING OF BIDS
18.1 The bidder shall prepare one original of the documents comprising the bid as described in Clause 12 of these Instructions to Bidders, bound with the section containing the Form of Bid and Appendix to Bid, and clearly marked ORIGINAL. In addition, the bidder shall submit a replica copy of the bid clearly marked COPY OF ORIGINAL. However, in the event of discrepancy between them, the original shall prevail.
18.2 The original and copy of the bid shall be typed or written in indelible ink (in the case of copies, photocopies are also acceptable) and shall be signed by a person or persons
duly authorized to sign on behalf of the bidder pursuant to Sub-Clause 5.1(a) OR 4.3 (c) as the case may be. The person or persons signing the bid shall initial all pages of the bid where entries or amendments have been made: Non-initiallization shall constitute non-responsiveness
18.3 The bid shall be without alterations, omissions or conditions except as necessary to correct errors made by the bidder, in which case such corrections shall be initialled by the person or persons signing the bid.
18.4 The bid shall serialize all pages of the document using indelible ink. Non-serialization shall constitute non-responsiveness.
D. SUBMISSION OF BIDS
19 SEALING AND MARKING OF BIDS
19.1 The bidder shall seal the original and each copy of the bid in separate envelopes duly marking the envelopes ORIGINAL and COPY. The envelopes shall then be sealed in an outer separate envelope.
19.2 The inner and outer envelopes shall be:
(a) addressed to the Employer at the address provided in the Appendix to Form of Bid. (b) bear the name and identification number of the contract. In addition to the
identification required in sub-Clause 19.2, the inner envelopes shall indicate the name and address of the bidder to enable the bid to be returned unopened in case it is declared late pursuant to Clause 21.1, and for matching purposes under Clause 22.
19.3 If the outer envelope is not sealed and marked as instructed above, the Employer will assume no responsibility for the misplacement or premature opening of the bid. If the outer envelope discloses the bidder's identity the Employer will not guarantee the anonymity of the bid submission, but this shall not constitute grounds for rejection of the bid.
20 DEADLINE FOR SUBMISSION OF BIDS
20.1 Bids must be received by the Employer at the address specified in Sub Clause 19.2 not later than the date indicated in the tender notice.
20.2 The Employer may, at his discretion, extend the deadline for the submission of bids through the issue of an Addendum in accordance with Clause 10 in which case all rights and obligations of the Employer and the bidders previously subject to the original deadline shall thereafter be subject to the new deadline as extended.
21 LATE BIDS
21.1 Any bid received by the Employer after the deadline for submission of bids prescribed in Clause 20 will be returned unopened to the bidder.
22 MODIFICATION, SUBSTITUTION AND WITHDRAWAL OF BIDS
22.1 The bidder may modify, substitute or withdraw his bid after bid submission, provided that written notice of modification or withdrawal is received by the Employer prior to the prescribed deadline for submission of bids.
22.2 The bidders modification, substitution or withdrawal notice shall be prepared, sealed, marked and delivered in accordance with the provisions of Clause 19, with the outer and inner envelopes additionally marked MODIFICATION or WITHDRAWAL as appropriate.
22.3 No bid may be modified subsequent to the deadline for submission of bids, except in accordance with Sub-Clause 29.1.
Any withdrawal of a bid during the interval between the deadline for submission of bids and expiration of the period of bid validity may result in the forfeiture of the bid security.
E. BID OPENING AND EVALUATION
23 BID OPENING
23.1 The Employer will open the bids, including withdrawals and modifications made pursuant to Clause 22, in the presence of bidders' designated representatives who choose to attend, at the time, date, and location stipulated in the the tender notice. The bidders' representatives who are present shall sign a register evidencing their attendance.
23.2 Envelopes marked "WITHDRAWAL" and SUBSTITUTION shall be opened first and the name of the bidder shall be read out. Bids for which an acceptable notice of withdrawal has been submitted pursuant to Clause 22 shall not be opened.
23.3 The bidder's name, the Bid Prices, including any bid modifications and withdrawals, the presence (or absence) of bid security, and any such details as the Employer may consider appropriate, will be announced by the Employer at the opening. Subsequently, all envelopes marked MODIFICATION shall be opened and the submissions therein read out in appropriate detail. No bid shall be rejected at bid opening except for late bids pursuant to Clause 20.
23.4 The Employer shall prepare minutes of the bid opening, including the information disclosed to those present in accordance with Sub-Clause 23.3.
23.5 Bids not opened and read out at bid opening shall not be considered further for evaluation, irrespective of the circumstances.
24 PROCESS TO BE CONFIDENTIAL
24.1 Information relating to the examination, evaluation and comparison of bids, and recommendations for the award of contract shall not be disclosed to bidders or any other persons not officially concerned with such process until the award to the successful bidder has been announced. Any effort by a bidder to influence the Employer's processing of bids or award decisions may result in the rejection of the bidder's bid.
25 CLARIFICATION OF BIDS AND CONTACTING OF THE EMPLOYER
25.1 To assist in the examination, evaluation, and comparison of bids, the Employer may, at its discretion, ask any bidder for clarification of its bid, including breakdowns of unit rates. The request for clarification and the response shall be in writing or by cable, but no change in the price or substance of the bid shall be sought, offered, or permitted except as required to confirm the correction of arithmetic errors discovered by the Employer in the evaluation of the bids in accordance with Clause
29.
25.2 Subject to Sub-Clause 24.1, no bidder shall contact the Employer on any matter relating to its bid from the time of the bid opening to the time the contract is awarded. If the bidder wishes to bring additional information to the notice of the Employer, should do so in writing.
25.3 Any effort by the bidder to influence the Employer in the Employer's bid evaluation, bid comparison or contract award decisions may result in the rejection of the bidder's bid.
26 EXAMINATION OF BIDS AND DETERMINATION OF RESPONSIVENESS
26.1 Prior to the detailed evaluation of bids, the Employer will determine whether each bid (a) has been properly signed; (b) is accompanied by the required securities; (c) is substantially responsive to the requirements of the bidding documents; and (d) provides any clarification and/or substantiation that the Employer may require to determine responsiveness pursuant to Sub-Clause 26.2.
26.2 A substantially responsive bid is one that conforms to all the terms, conditions, and specifications of the bidding documents without material deviation or reservation and has a valid tender bank guarantee. A material deviation or reservation is one (a) which affects in any substantial way the scope, quality, or performance of the works; (b) which limits in any substantial way, inconsistent with the bidding documents, the Employer's rights or the bidder's obligations under the contract; or (c) whose rectification would affect unfairly the competitive position of other bidders presenting substantially responsive bids.
26.3 If a bid is not substantially responsive, it will be rejected by the Employer and may not subsequently be made responsive by correction or withdrawal of the nonconforming deviation or reservation.
27 CORRECTION OF ERRORS
27.1 Tenders determined to be substantially responsive shall be checked by the Employer for any arithmetic errors in the computations and summations. Errors will be corrected by the Employer as follows:
(a) Where there is a discrepancy between the amount in figures and the amount in words, the amount in words will govern.
(b) Where there is a discrepancy between the unit rate and the line item total resulting from multiplying the unit rate by the quantity, the unit rate as quoted will prevail, unless in the opinion of the Employer, there is an obvious typographical error, in which case adjustment will be made to the entry containing that error.
(c) In the event of a discrepancy between the tender amount as stated in the Form of Tender and the corrected tender figure in the main summary of the Bills of Quantities, the amount as stated in the Form of Tender shall prevail.
(d) The Error Correction Factor shall be computed by expressing the difference between the tender amount and the corrected tender sum as a percentage of the corrected work items (i.e. corrected tender sum less Prime Cost and Provisional Sums.
(e) The Error Correction Factor shall be applied to all work items (as a rebate or addition as the case may be) for the purposes of valuations for Interim Certificates and valuations of variations.
(f) The bidder shall within three (3) days after issuance of the written notice by the employer, or such further time as the employer may allow, correct his tender in such a manner as may be agreed or directed by the employer failing which the tender may be absolutely rejected and the bid security forfeited in accordance with sub-clause 16.6
28 EVALUATION AND COMPARISON OF BIDS
28.1 The Employer will carry out evaluation of details and information provided in post- Qualification Questionnaire and any bidder who does not qualify shall not have his/her bid evaluated further.
28.2 The Employer will then evaluate and compare only the bids determined to be substantially responsive in accordance with Clauses 25 and 26.
28.3 If the bid, which results in the lowest Evaluated Bid Price is seriously unbalanced or front loaded in relation to the Engineer's estimate of the items of work to be performed under the contract, the Employer may require the bidder to produce detailed price analyses for any or all items of the Bills of Quantities, to demonstrate the internal consistency of those prices with the construction methods and schedule proposed. After evaluation of the price analyses, taking into consideration the schedule of estimated contract payments, the Employer may require that the amount of the Performance Security set forth in Clause 31 be increased at the expense of the bidder to a level sufficient to protect the Employer against financial loss in the event of default of the successful bidder under the contract.
29 QUALIFICATION AND EVALUATION CRITERIA
29.1 Post-qualification will be based on meeting all of the following minimum point scale criteria regarding the Applicants general and particular experience, personnel and equipment capabilities as well as financial position. The Employer reserves the right to waive minor deviations, if they do not materially affect the capacity of an applicant to perform the contract. Subcontractors experience and resources shall not be taken into account in determining the Applicants compliance with qualifying criteria.
G. AWARD OF CONTRACT
30 AWARD
30.1 The Employer will award the contract to the bidder whose bid
has been determined to be substantially responsive to the bidding documents and who has offered the lowest Evaluated Bid Price pursuant to Clause 27, provided that such bidder has been determined to be (a) eligible in accordance with the provisions of Sub-Clause 3.1, and (b) qualified in accordance with the provisions of Clause 4.
31 EMPLOYER'S RIGHT TO ACCEPT ANY BID AND TO REJECT ANY OR ALL BIDS
31.1 The Employer reserves the right to accept or reject any bid, and to annul the bidding process and reject all bids, at any time prior to award of contract, without thereby incurring any liability to the affected bidder or bidders or any obligation to inform the affected bidder or bidders of the grounds for the Employer's action.
32 NOTIFICATION OF AWARD
32.1 Prior to expiration of the period of bid validity prescribed by the Employer, the Employer will notify the successful bidder in writing or by cable confirmed by registered letter that its bid has been accepted. This letter (hereinafter and in the Conditions of Contract called "Letter of Acceptance") shall specify the sum, which the Employer will pay the Contractor in consideration of the execution and completion of the works and the remedying of any defects therein by the Contractor as prescribed by the contract (hereinafter and in the Conditions of Contract called "the Contract Price").
32.2 At the same time that the Employer notifies the successful bidder that his bid has been accepted, the Employer shall notify the other bidders that their bids have been unsuccessful and that their bid security will be returned as promptly as possible, in accordance with sub clause 16.4
. 33 SIGNING OF AGREEMENT
33.1 The Contract Agreement will incorporate all agreements between the Employer and the Tenderer. It will be signed by the Tenderer, not earlier than 21 days following the date of the Letter of Acceptance, and thereafter returned to the Employer within 14 days for signature
34 CONTRACT EFFECTIVENESS
34.1 The Contract will be effective only upon signature of the Agreement between the Contractor and the Employer.
35 PERFORMANCE SECURITY
35.1 Within 21 days of receipt of the Letter of Acceptance from the Employer, the successful bidder shall furnish to the Employer a performance security in the form stipulated in the Conditions of contract. annulment of the award and suspension from being eligible for bidding in any tender with the authority pursuant to clause 16.5; in which event the Employer may make the award to another bidder or call for new bids.
36 EXECUTION OF WORKS
36.1 The work execution will be carried out based on the documents as listed bellow.
Conditions of Contract Part I: General Conditions of Contract
Road Maintenance Manual
Standard Specifications
Special Specifications
Supervision and Contract Evaluation Manual
Bills of Quantities
37. BID SECURING DECLARATION
37.1 The bidder shall furnish, as part of his bid, a duly filled and signed bid Securing Declaration Form as shown in the Appendix to instruction to tenderers.
37.2 The bid securing declaration shall be in the format and in accordance with bid securing declaration form included in Section 3. The bid securing declaration shall remain valid for a period of thirty (30) days beyond the original validity period for the bid, and beyond any period of extension subsequently requested under Sub-Clause 15.2.
37.3 Any bid not accompanied by an acceptable bid securing declaration will be rejected by the Employer as non-responsive.
37.4 The bid securing declaration of unsuccessful bidders will expire either 28 days after the expiration of the period of bid validity or upon receipt of copy of notification of award to successful bidder whichever comes earlier.
37.5 The bid securing declaration of the successful bidder will be discharged upon the bidder signing the Contract Agreement and furnishing the required performance security.
37.6 The bidder shall automatically be suspended from being eligible for bidding in any contract with the Purchaser for the period of time of 5 years starting on the date of expiration of tender validity period, if:
a bidder withdraws his bid,
in the case of a successful bidder, if he fails within the specified time limit to:
sign the Contract Agreement or
furnish the necessary performance security
TENDER EVALUATION CRITERIA
After tender opening, the tenders will be evaluated in 4 Stages, namely:
1. Preliminary Evaluation &Determination of Responsiveness
2. Technical Evaluation
3. Financial Evaluation.
4. Determination of the Most Responsive Bidder.
5. Recommendation
1.PRELIMINARY EVALUATION&
DETERMINATION OF RESPONSIVENESS
This stage of evaluation shall involve examination of the pre-qualification conditions as set out in the Tender Advertisement Notice or Letter of Invitation to Tender and any other conditions stated in the bid document.
These conditions may include the following:
Certified copy of Certificate of Incorporation,
Certified copy of VALID Registration Certificate with the National Construction Authourity in the classes specified in the tender notice.
VAT and PIN registration,
A copy of VALID Tax Compliance Certificate from Kenya Revenue Authority (KRA),
Bid bond 2% of the tender sum,
Certified copy of RECENT CR12 FORM ( WITHIN 12 MONTHS) from registrar of companies.
Certified copy of Single Business Permit preferably from Kisumu County.
Bidders shall sequentially serialize all pages for each tender document submitted failure to which the bidder shall be disqualified.
Certified copy of Certificate of registration for access to government procurement opportunities from the ministry of National Treasury for tenders in the special categories.
Any other conditions included in the advertisement notice/Invitation letter.
Certification must be by a commissioner for oaths.
Note:
The bid security shall be in accordance with clauses 16.1 and 16.2 of Instruction to Tenderers which states as follows:
Clause 16.1 The bidder shall furnish, as part of his bid, a bid security in the amount shown in the Appendix to instruction to tenderers. The bid security must be in form of a certified cheque, bank draft, an irrevocable letter of credit or a guarantee from a reputable Bank/ Insurance approved by PPOA located in the Republic of Kenya
Clause 16.2 of Instruction to Tenderers, the unconditional Tender surety shall be in Kenya shillings and be in form of a certified cheque, bank draft, an irrevocable letter of credit or a guarantee from a reputable Bank/ Insurance approved by PPOA located in the Republic of Kenya. The format of the surety shall be in accordance with the sample form included in the tender documents and the tender surety shall be valid for 150 days from the date of tender opening.
Clause 26.2 of Instruction to Tenderers: For the purposes of this clause, a substantially responsive tender is one which conforms to all terms and condition and specifications of the tender document without material deviation or reservation and has a valid Bank/Insurance guarantee.
The employer may seek further clarification/confirmation if necessary to confirm authenticity/compliance of any condition of the tender.
The tenderers who do not satisfy any of the above requirements shall be considered Non-Responsive and their tenders will not be evaluated further
2. TECHNICAL EVALUATION
The tender document shall be examined based on clause 4 of the Instruction to Tenderers which states as follows:
In accordance with clause 4.4 of Instruction to Tenderers, the tenderers shall provide such evidence of their continued eligibility satisfactory to the Employer as the Employer shall reasonably request. The tenderers shall be required to fill the Standards Forms provided for the purposes of providing the required information. The tenderers may also attach the required information if they so desire.
The award of points for the STANDARD FORMS considered in this section shall be as shown below:
PARAMETER MAXIMUM POINTS
Form of Tender --------------------------------------------------------------- 1.5
Tender Questionnaire - ---------------------------------------------------------2.5
Confidential Business Questionnaire ---------------------------------------- 2.5
Key personnel - ------------------------------------------------------------------7.5
Contract Completed in the last Five (5) years - -----------------------------7.5
Schedules of on-going projects ------------------------------------------------ 5
Schedules of contractors equipment ----------------------------------------- 5
Audited Financial Report for the last 3 years------------------------------- 5
Evidence of Financial Resources --------------------------------------------- 5
Name, Address and Telephone of Banks (Contractor to provide) ------- 2.5
Litigation History------------------------------------------------------------------ 1
Sanctity of the tender document as in accordance with clause 5 of
instruction to tenderer ----------------------------------------------------------- 5
TOTAL 50
The detailed scoring plan shall be as shown in table 1 below: -
TABLE 1:
ItemDescriptionPoint ScoredMax. Point IForm of Tender
Signed and stamped -----------------------------------------------1.5
Signed but not stamped or vice versa ---------------------------1
Not signed nor stamped------------- ------------------------------ 0 1.5IiTender Questionnaire Form
Completely filled ---------------------------------------------------2.5
Partially filled ---- -------------------------------------------------1.5
Not filled --------------------------------------------------------------02.5IiiConfidential Business Questionnaire Form.
Completely filled ------------------------------------------------- 2.5
Partially filled ----------------------------------------------------- 1.5
Not filled ----------------------------------------------------------- 0 2.5IvKey Personnel (Attach evidence)7.5Director of the firm
Holder of degree or diploma in relevant Engineering field------2
Holder of certificate in relevant Engineering field---------------1.5
Holder of trade test certificate in relevant Engineering field--- 1
No relevant certificate -----------------------------------------------02At least 1No. degree/diploma of key personnel in relevant Engineering field
With over 10 years relevant experience ------------------------2
With over 5 years relevant experience ------------------------- 1.5
With under 5 years relevant experience ------------------------ 0.52At least 1No certificate holder of key personnel in relevant Engineering field
With over 10 years relevant experience ----------------------- 1.5
With over 5 years relevant experience ------------------------ 1
With under 5 years relevant experience ------------------------0.51.5At least 2No artisan (trade test certificate in relevant Engineering field)
Artisan with over 10 years relevant experience -------------- 2
Artisan with under 10 years relevant experience ------------- 1.5
Non skilled worker with over 10 years relevant experience--0.52
VContract completed in the last five (5) years (Max of 5 No. Projects)
[Attach Documentary Evidence]
Project of similar nature, complexity and magnitude ------7.5
Project of similar nature but of lower value than the one in consideration------------------------------------------------------- 4
No completed project of similar nature ------------------------- 0
7.5
ViOn-going projects (Max of 5 No. Projects)
[Attach Documentary Evidence]
Project of similar nature, complexity and magnitude ---- 5
Project of similar nature but of lower value than the one in consideration --------------------------------------------------3.5
No ongoing project of similar nature - -----------------------0 5ViiSchedule of contractors equipment and transport (proof or evidence of ownership)
Means of transport (Vehicle) -------------------------------- 2
No means of transport ---------------------------------------- 025
For each specific equipment required in the installation of the
Work being tendered for.
(Maximum No. of equipment to be considered 3 No.) ----------- 33
ViiiFinancial Report 5Audited financial report (last three (3) years)
Turn over greater or equal to 5 times the cost of the project ----5
Turn over greater or equal to 3 times the cost of the project -- 3
Turn over greater or equal to the cost of the project ------------ 2
Turn over below the cost of the project -------------------------- 1IxEvidence of Financial Resources (cash in hand, lines of credit, over draft facility etc)
Has financial resources equal or above the cost of the project--5
Has financial resources below the cost of the project -------2.5
Has not indicated sources of financial resources ------------05XName, Address and Telephone of Banks (Contractor to provide)
Provided ---------------------------------------------------------- 2.5
Not provided ------------------------------------------------------- 0 2.5XiLitigation History
Provided -------------------------------------------------------------1
Not Provided --------------------------------------------------------0 1
XiiSanctity of the Tender Document
Having the document intact
(not tempered with in any way) ------------------------------------5
Having mutilated or modified the tender document-----------05
TOTAL
50
Any bidder who scores 25 points and above shall be considered for further evaluation.
The Technical Evaluation Score will be carried forward to STAGE 4
3. FINANCIAL EVALUATION
The evaluation shall be in two sections
1. Preliminary examinations and
2. Tender sum Comparisons
A) PRELIMINARY EXAMINATIONS
The preliminary examination in the Financial Evaluation shall be in accordance with clause 26 of Instruction to Tenderers.
The parameter to be considered under this section includes the following:
Arithmetic errors and comparison of rates.
Arithmetic Errors
The bid shall be checked for arithmetic errors based on the rates and the total sums indicated in the bills of quantities.
Confirmation shall be sought in writing from the tenderers whose tender sums will be determined to have a significant arithmetic error to their disadvantage, to confirm whether they stand by their tender sums. The error shall be treated as per clause 27 of Instructions to Tenderers.
Non-compliance with the above shall lead to automatic disqualification from furtherevaluation.
Discount if any shall be treated as an error in pursuant to clause 27 of Instructions toTenderers.
(2) Comparison of rates
The evaluation committee will compare rates from different bidders and note consistency of rates and front loading. The evaluation committee will judge and make an appropriate decision giving evidence.
B) TENDER SUMS COMPARISONS
In this section, tender sums will be compared to the average of all sums for bidders who have qualified from STAGE 3A and score awarded to a maximum of 20 as shown below.
1 Preliminary Average
The tender sums of various binders, who qualify at STAGE 3A and the engineer's estimates, shall be reduced by omitting PC sums, provisional sums and contingency from the respectful amounts. The average of the reduced amounts so obtained shall be calculated.
Any tenderer whose tender percentage deviation is 20% higher or lower than the average obtained above, will be deemed to be unreasonably high or low and shall not be included in determining the mean in table 3, their bids will not be evaluated further. The Engineer's estimate will also be subjected to the same treatment.
The detailed scoring plan shall be as shown in table 2 below: TABLE 3
ItemDescriptionScoreMax. scoreITender Sums: (The tender sums of bidders, who qualify at STAGE 3A and the engineer's estimates, shall be reduced by omitting PC sums, provisional sums and contingency from the respectful amounts. The average of the adjusted tender sums so obtained shall be calculated. The deviation of the reduced amounts in respect of each bidder from the average shall then be worked out as a percentage of the average (Rounded off to one (1) decimal point) and scores allocated as follows :-)
Deviation of between 0% and 1% ------------------------------------ 20
Deviation of between 1.1% and 2% ---------------------------------- 18.5
Deviation of between 2.1% and 3% ----------------------------------- 16.2
Deviation of between 3.1% and 4% ----------------------------------- 15.5
Deviation of between 4.1% and 5% ------------------------------------ 14
Deviation of between 5.1% and 6% ----------------------------------- 12.5
Deviation of between 6.1% and 7% ------------------------------------- 11
Deviation of between 7.1% and 8% ----------------------------------- 10.5
Deviation of between 8.1% and 9% ------------------------------------- 8
Deviation of between 9.1% and 10% ---------------------------------- 7.5
Deviation of between 10.1% and 11% ---------------------------------- 6.5
Deviation of between 11.1% and 12% ---------------------------------- 6.0
Deviation of between 12.1% and 13% --------------------------------- 4.8
Deviation of between 13.1% and 14% ---------------------------------- 3.5
Deviation of between 14.1% and 15% ----------------------------------- 3
Deviation of between 15.1% and 16% ----------------------------------- 2.5
Deviation of between 16.1% and 17% ------------------------------------ 1.8
Deviation of between 17.1% and 18% ---------------------------------- 1.5
Deviation of between 18.1% and 19% --------------------------------------- 1
Deviation of between 19.1% and 20% --------------------------------------0.5
Deviation of 20.1% and above -------------------------------------- 020TOTAL20
The Tender sum score will be carried forward to STAGE 4
C) FINANCIAL SCORE
The Evaluation Team shall compare the prices offered by the tenderers and the Financial Scores (Fs) will be determined using the formulae below. The financial score will be allocated a maximum of 30%.
Fs = 30 x Fm/F
Where:Fsis the Financial Score
Fmis the Lowest Priced Responsive Bidsum
Fis the Bid Price under consideration
4. DETERMINATION OF THE MOST RESPONSIVE BIDDER
The evaluation team shall combine Technical Evaluation Score, Tender Sums ComparisonScore and Financial Score as below:
Technical Evaluation Score (TEs) + Tender Sums Comparison Score (TSCs) +Financial Score (Fs)
FINAL SCORE =TEs + TSCs + Fs
= 50% +20%+30%
5. RECOMMENDATION
The Evaluation Committee shall recommend to the clients Accounting Officer, for award, the Lowest Evaluated Bidder among those who achieve a score of 75% and above in STAGE 4 above Section C
CONDITIONS OF CONTRACT
Table of Contents
1 Definitions
24
2 Interpretation
26
3 Language and Law
27
4 Project Managers Decisions
27
5 Delegation
27
6 Communications
27
7 Sub Contracting
27
8 Other Contractors
27
9 Personnel
28
10 Works
28
11 Safety and temporary works
28
12 Discoveries
28
13 Work Programme
29
14 Possession of site
29
15 Access to site
29
16 Instructions
29
17 Extension or Acceleration of completion date
29
18 Management Meetings
30
19 Early Warning
30
20 Defects
30
21 Bills of Quantities
31
22 Variations
31
23 Payment certificates, currency of payments and
Advance Payments
32-34
24 Compensation events
34-36
25 Price Adjustment
38
26 Retention
38
27 Liquidated Damages
38
28 Securities
38
29 Day Works
39
30 Liability and Insurance
40
31 Completion and taking over
40
32 Final Account
41
33 Termination
41
34 Payment upon termination
42
35 Release from performance
43
36 Corrupt gifts and payments of commission
43
37 Settlement of Disputes
43-45
Definitions
In this Contract, except where context otherwise requires, the following terms shall be interpreted as indicated;
Bill of Quantities means the priced and completed Bill of Quantities forming part of the tender.
Compensation Events are those defined in Clause 24 hereunder.
The Completion Date means the date of completion of the Works as certified by the Project Manager, in accordance with Clause 31.
The Contract means the agreement entered into between the Employer and the Contractor as recorded in the Agreement Form and signed by the parties including all attachments and appendices thereto and all documents incorporated by reference therein to execute, complete, and maintain the Works,
The Contractor refers to the person or corporate body whose tender to carry out the Works has been accepted by the Employer.
The Contractors Tenderis the completed tendering document submitted by the Contractor to the Employer.
The Contract Price is the price stated in the Letter of Acceptance and thereafter as adjusted in accordance with the provisions of the Contract.
Days are calendar days; Months are calendar months.
A Defect is any part of the Works not completed in accordance with the Contract.
The Defects Liability Certificate is the certificate issued by Project Manager upon correction of defects by the Contractor.
The Defects Liability Period is the period named in the Contract Data and calculated from the Completion Date.
Drawings include calculations and other information provided or approved by the Project Manager for the execution of the Contract.
Dayworks are Work inputs subject to payment on a time basis for labour and the associated materials and plant.
Employer, or the Procuring entity as defined in the Public Procurement Regulations (i.e. Central or Local Government administration, Universities, Public Institutions and Corporations, etc) is the party who employs the Contractor to carry out the Works.
Equipment is the Contractors machinery and vehicles brought temporarily to the Site for the execution of the Works.
The Intended Completion Date is the date on which it is intended that the Contractor shall complete the Works. The Intended Completion Date may be revised only by the Project Manager by issuing an extension of time or an acceleration order.
Materials are all supplies, including consumables, used by the Contractor for incorporation in the Works.
Plant is any integral part of the Works that shall have a mechanical, electrical, chemical, or biological function.
Project Manager is the person named in the Appendix to Conditions of Contract (or any other competent person appointed by the Employer and notified to the Contractor, to act in replacement of the Project Manager) who is responsible for supervising the execution of the Works and administering the Contract and shall be an Architect or a Quantity Surveyor registered under the Architects and Quantity Surveyors Act Cap 525 or an Engineer registered under Engineers Registration Act Cap 530.
Site is the area defined as such in the Appendix to Condition of Contract.
Site Investigation Reports are those reports that may be included in the tendering documents which are factual and interpretative about the surface and subsurface conditions at the Site.
Specifications means the Specifications of the Works included in the Contract and any modification or addition made or approved by the Project Manager.
Start Date is the latest date when the Contractor shall commence execution of the Works. It does not necessarily coincide with the Site possession date(s).
A Subcontractor is a person or corporate body who has a Contract with the Contractor to carry out a part of the Work in the Contract, which includes Work on the Site.
Temporary works are works designed, constructed, installed, and removed by the Contractor which are needed for construction or installation of the Works.
A Variation is an instruction given by the Project Manager which varies the Works.
The Works are what the Contract requires the Contractor to construct, install, and turnover to the Employer, as defined in the Appendix to Conditions of Contract.
Interpretation
In interpreting these Conditions of Contract, singular also means plural, male also means female or neuter, and the other way around. Headings have no significance. Words have their normal meaning in English Language unless specifically defined. The Project Manager will provide instructions clarifying queries about these Conditions of Contract.
If sectional completion is specified in the Appendix to Conditions of Contract, reference in the Conditions of Contract to the Works, the Completion Date and the Intended Completion Date apply to any section of the Works (other than references to the Intended Completion Date for the whole of the Works).
The following documents shall constitute the Contract documents and shall be interpreted in the following order of priority;
Agreement,
Letter of Acceptance,
Contractors Tender,
Appendix to Conditions of Contract,
Conditions of Contract,
Specifications,
Drawings,
Bill of Quantities,
Any other documents listed in the Appendix to Conditions of Contract as forming part of the Contract.
Immediately after the execution of the Contract, the Project Manager
shall furnish both the Employer and the Contractor with two copies
each of all the Contract documents. Further, as and when necessary
the Project Manager shall furnish the Contractor [always with a copy
to the Employer] with three [3] copies of such further drawings or
details or descriptive schedules as are reasonably necessary either
to explain or amplify the Contract drawings or to enable the
Contractor to carry out and complete the Works in accordance with
these Conditions.
Language and Law
Language of the Contract and the law governing the Contract shall be English language and the Laws of Kenya respectively unless
otherwise stated.
Project Managers Decisions
Except where otherwise specifically stated, the Project Manager will decide contractual matters between the Employer and the Contractor in the role representing the Employer.
Delegation
The Project Manager may delegate any of his duties and responsibilities to others after notifying the Contractor.
Communications
6.1 Communication between parties shall be effective only when in writing. A notice shall be effective only when it is delivered.
Subcontracting
7.1 The Contractor may subcontract with the approval of the Project Manager, but may not assign the Contract without the approval of the Employer in writing. Subcontracting shall not alter the Contractors obligations.
Other Contractors
8.1 The Contractor shall cooperate and share the Site with other contractors, public authorities, utilities etc. as listed in the Appendix to Conditions of Contract and also with the Employer, as per the directions of the Project Manager. The Contractor shall also provide facilities and services for them. The Employer may modify the said List of Other Contractors etc., and shall notify the Contractor of any such modification.
Personnel
The Contractor shall employ the key personnel named in the Qualification Information, to carry out the functions stated in the said Information or other personnel approved by the Project Manager. The Project Manager will approve any proposed replacement of key personnel only if their relevant qualifications and abilities are substantially equal to or better than those of the personnel listed in the Qualification Information. If the Project Manager asks the Contractor to remove a person who is a member of the Contractors staff or work force, stating the reasons, the Contractor shall ensure that the person leaves the Site within seven days and has no further connection with the Work in the Contract.
Works
10.1 The Contractor shall construct and install the Works in accordance with the Specifications and Drawings. The Works may commence on the Start Date and shall be carried out in accordance with the Program submitted by the Contractor, as updated with the approval of the Project Manager, and complete them by the Intended Completion Date.
Safety and Temporary Works
The Contractor shall be responsible for the design of temporary works. However before erecting the same, he shall submit his designs including specifications and drawings to the Project Manager and to any other relevant third parties for their approval. No erection of temporary works shall be done until such approvals are obtained.
The Project Managers approval shall not alter the Contractors responsibility for design of the Temporary works and all drawings prepared by the Contractor for the execution of the temporary or permanent Works, shall be subject to prior approval by the Project Manager before they can be used.
The Contractor shall be responsible for the safety of all activities on the Site.
12. Discoveries
12.1 Anyth ing of historical or other interest or of significant value unexpectedly discovered on Site shall be the property of the Employer. The Contractor shall notify the Project Manager of such discoveries and carry out the Project Managers instructions for dealing with them.
Work Program
Within the time stated in the Appendix to Conditions of Contract, the Contractor shall submit to the Project Manager for approval a program showing the general methods, arrangements, order, and timing for all the activities in the Works. An update of the program shall be a program showing the actual progress achieved on each activity and the effect of the progress achieved on the timing of the remaining Work, including any changes to the sequence of the activities.
The Contractor shall submit to the Project Manager for approval an updated program at intervals no longer than the period stated in the Appendix to Conditions of Contract. If the Contractor does not submit an updated program within this period, the Project Manager
may withhold the amount stated in the said Appendix from the next payment certificate and continue to withhold this amount until the next payment after the date on which the overdue program has been submitted. The Project Managers approval of the program shall not alter the Contractors obligations. The Contractor may revise the program and submit it to the Project Manager again at any time. A revised program shall show the effect of Variations and Compensation Events.
Possession of Site
The Employer shall give possession of all parts of the Site to the Contractor. If possession of a part is not given by the date stated in the Appendix to Conditions of Contract , the Employer will be deemed to have delayed the start of the relevant activities, and this will be a Compensation Event.
Access to Site
The Contractor shall allow the Project Manager and any other person authorised by the Project Manager, access to the Site and to any place where work in connection with the Contract is being carried out or is intended to be carried out.
Instructions
The Contractor shall carry out all instructions of the Project Manager which are in accordance with the Contract.
Extension or Acceleration of Completion Date
The Project Manager shall extend the Intended Completion Date if a Compensation Event occurs or a variation is issued which makes it impossible for completion to be achieved by the Intended Completion Date without the Contractor taking steps to accelerate the remaining Work, which would cause the Contractor to incur additional cost. The Project Manager shall decide whether and by how much to extend the Intended Completion Date within 21 days of the Contractor asking the Project Manager in writing for a decision upon the effect of a Compensation Event or variation and submitting full supporting information. If the Contractor has failed to give early warning of a delay or has failed to cooperate in dealing with a delay, the delay caused by such failure shall not be considered in assessing the new (extended) Completion Date.
No bonus for early completion of the Works shall be paid to the Contractor by the Employer.
Management Meetings
A Contract management meeting shall be held monthly and attended by the Project Manager and the Contractor. Its business shall be to review the plans for the remaining Work and to deal with matters raised in accordance with the early warning procedure. The Project Manager shall record the minutes of management meetings and provide copies of the same to those attending the meeting and the Employer. The responsibility of the parties for actions to be taken shall be decided by the Project Manager either at the management meeting or after the management meeting and stated in writing to all who attended the meeting.
Early Warning
The Contractor shall warn the Project Manager at the earliest opportunity of specific likely future events or circumstances that may adversely affect the quality of the Work, increase the Contract Price or delay the execution of the Works. The Project Manager may require the Contractor to provide an estimate of the expected effect of the future event or circumstance on the Contract Price and Completion Date. The estimate shall be provided by the Contractor as soon as reasonably possible.
The Contractor shall cooperate with the Project Manager in making and considering proposals on how the effect of such an event or circumstance can be avoided or reduced by anyone involved in the Work and in carrying out any resulting instructions of the Project Manager.
Defects
The Project Manager shall inspect the Contractors work and notify the Contractor of any defects that are found. Such inspection shall not affect the Contractors responsibilities. The Project Manager may instruct the Contractor to search for a defect and to uncover and test any Work that the Project Manager considers may have a defect. Should the defect be found, the cost of uncovering and making good shall be borne by the Contractor, However, if there is no defect found, the cost of uncovering and making good shall be treated as a variation and added to the Contract Price.
The Project Manager shall give notice to the Contractor of any defects
before the end of the Defects Liability Period, which begins at Completion, and is defined in the Appendix to Conditions of Contract. The Defects Liability Period shall be extended for as long as defects remain to be corrected.
Every time notice of a defect is given, the Contractor shall correct the notified defect within the length of time specified by the Project Managers notice. If the Contractor has not corrected a defect within the time specified in the Project Managers notice, the Project Manager will assess the cost of having the defect corrected by other parties and such cost shall be treated as a variation and be deducted from the Contract Price.
Bills Of Quantities
The Bills of Quantities shall contain items for the construction, installation, testing and commissioning of the Work to be done by the Contractor. The Contractor will be paid for the quantity of the Work done at the rate in the Bills of Quantities for each item.
If the final quantity of the Work done differs from the quantity in the Bills of Quantities for the particular item by more than 25 percent and provided the change exceeds 1 percent of the Initial Contract price, the Project Manager shall adjust the rate to allow for the change.
If requested by the Project Manager, the Contractor shall provide the Project Manager with a detailed cost breakdown of any rate in the Bills of Quantities.
Variations
All variations shall be included in updated programs produced by the Contractor.
The Contractor shall provide the Project Manager with a quotation for carrying out the variations when requested to do so. The Project Manager shall assess the quotation, which shall be given within seven days of the request or within any longer period as may be stated by the Project Manager and before the Variation is ordered.
If the work in the variation corresponds with an item description in the Bills of Quantities and if in the opinion of the Project Manager, the quantity of work is not above the limit stated in Clause 21.2 or the timing of its execution does not cause the cost per unit of quantity to change, the rate in the Bills of Quantities shall be used to calculate the value of the variation. If the cost per unit of quantity changes, or
if the nature or timing of the work in the variation does not correspond with items in the Bills of Quantities, the quotation by the Contractor shall be in the form of new rates for the relevant items of Work.
If the Contractors quotation is unreasonable, the Project Manager may order the variation and make a change to the Contract price, which shall be based on the Project Managers own forecast of the effects of the variation on the Contractors costs.
If the Project Manager decides that the urgency of varying the Work would prevent a quotation being given and considered without delaying the Work, no quotation shall be given and the variation shall be treated as a Compensation Event.
The Contractor shall not be entitled to additional payment for costs that could have been avoided by giving early warning.
When the Program is updated, the Contractor shall provide the Project Manager with an updated cash flow forecast.
Payment Certificates, Currency of Payments and Advance Payments
The Contractor shall submit to the Project Manager monthly applications for payment giving sufficient details of the Work done and materials on Site and the amounts which the Contractor considers himself to be entitled to. The Project Manager shall check the monthly application and certify the amount to be paid to the Contractor within 14 days. The value of Work executed and payable shall be determined by the Project Manager.
The value of Work executed shall comprise the value of the quantities of the items in the Bills of Quantities completed, materials delivered on Site, variations and compensation events. Such materials shall become the property of the Employer once the Employer has paid the Contractor for their value . Thereafter, they shall not be removed from Site without the Project Managers instructions except for use upon the Works.
Payments shall be adjusted for deductions for retention. The Employer shall pay the Contractor the amounts certified by the Project Manager within 30 days of the date of issue of each certificate. If the Employer makes a late payment, the Contractor shall be paid simple interest on the late payment in the next payment. Interest shall be calculated on the basis of number of days delayed at a rate three percentage points above the Central Bank of Kenyas average rate for base lending prevailing as of the first day the payment becomes overdue.
If an amount certified is increased in a later certificate or as a result of an award by an Arbitrator, the Contractor shall be paid interest upon the delayed payment as set out in this clause. Interest shall be calculated from the date upon which the increased amount would have been certified in the absence of dispute.
Items of the Works for which no rate or price has been entered in will not be paid for by the Employer and shall be deemed covered by other rates and prices in the Contract.
The Contract Price shall be stated in Kenya Shillings. All payments to the Contractor shall be made in Kenya Shillings and foreign currency in the proportion indicated in the tender, or agreed prior to the execution of the Contract Agreement and indicated therein. The rate of exchange for the calculation of the amount of foreign currency payment shall be the rate of exchange indicated in the Appendix to Conditions of Contract. If the Contractor indicated foreign currencies for payment other than the currencies of the countries of origin of related goods and services the Employer reserves the right to pay the equivalent at the time of payment in the currencies of the countries of such goods and services. The Employer and the Project Manager shall be notified promptly by the Contractor of an changes in the expected foreign currency requirements of the Contractor during the execution of the Works as indicated in the Schedule of Foreign Currency Requirements and the foreign and local currency portions of the balance of the Contract Price shall then be amended by agreement between Employer and the Contractor in order to reflect appropriately such changes.
23.7 In the event that an advance payment is granted, the following shall apply:-
On signature of the Contract, the Contractor shall at his request, and without furnishing proof of expenditure, be entitled to an advance of 10% (ten percent) of the original amount of the Contract. The advance shall not be subject to retention money.
No advance payment may be made before the Contractor has submitted proof of the establishment of deposit or a directly
liable guarantee satisfactory to the Employer in the amount of the advance payment. The guarantee shall be in the same currency as the advance.
Reimbursement of the lump sum advance shall be made by deductions from the Interim payments and where applicable from the balance owing to the Contractor. Reimbursement shall begin when the amount of the sums due under the Contract reaches 20% of the original amount of the Contract. It shall have been completed by the time 80% of this amount is reached.
The amount to be repaid by way of successive deductions shall be calculated by means of the formula:
R = A(x1 x11)
80 20
Where:
R = the amount to be reimbursed
A = the amount of the advance which has been granted
X1 = the amount of proposed cumulative payments as a percentage of the original amount of the Contract. This figure will exceed 20% but not exceed 80%.
X11 = the amount of the previous cumulative payments as a percentage of the original amount of the Contract. This figure will be below 80%but not less than 20%.
with each reimbursement the counterpart of the directly liable guarantee may be reduced accordingly.
Compensation Events
The following issues shall constitute Compensation Events:
The Employer does not give access to a part of the Site by the Site Possession Date stated in the Appendix to Conditions of Contract.
The Employer modifies the List of Other Contractors, etc., in a way that affects the Work of the Contractor under the Contract.
The Project Manager orders a delay or does not issue drawings, specifications or instructions required for execution of the Works on time.
The Project Manager instructs the Contractor to uncover or to carry out additional tests upon the Work, which is then found to have no defects.
The Project Manager unreasonably does not approve a subcontract to be let.
Ground conditions are substantially more adverse than could reasonably have been assumed before issuance of the Letter of Acceptance from the information issued to tenderers (including the Site investigation reports), from information available publicly and from a visual inspection of the Site.
The Project Manager gives an instruction for dealing with an unforeseen condition, caused by the Employer or additional work required for safety or other reasons.
Other contractors, public authorities, utilities, or the Employer does not work within the dates and other constraints stated in the Contract, and they cause delay or extra cost to the Contractor.
The effects on the Contractor of any of the Employers risks.
The Project Manager unreasonably delays issuing a Certificate of Completion.
Other compensation events described in the Contract or determined by the Project Manager shall apply.
If a compensation event would cause additional cost or would prevent the Work being completed before the Intended Completion Date, the Contract Price shall be increased and/or the Intended Completion Date shall be extended. The Project Manager shall decide whether and by how much the Contract Price shall be increased and whether and by how much the Intended Completion Date shall be extended.
As soon as information demonstrating the effect of each compensation event upon the Contractors forecast cost has been provided by the Contractor, it shall be assessed by the Project Manager, and the Contract Price shall be adjusted accordingly. If the Contractors forecast is deemed unreasonable, the Project Manager shall adjust the Contract Price based on the Project Managers own forecast. The
Project Manager will assume that the Contractor will react competently and promptly to the event.
The Contractor shall not be entitled to compensation to the extent that the Employers interests are adversely affected by the Contractor not having given early warning or not having co-operated with the Project Manager.
Prices shall be adjusted for fluctuations in the cost of inputs only if provided for in the Appendix to Conditions of Contract.
The Contractor shall give written notice to the Project Manager of his intention to make a claim within thirty days after the event giving rise to the claim has first arisen. The claim shall be submitted within thirty days thereafter.
Provided always that should the event giving rise to the claim of continuing effect, the Contractor shall submit an interim claim within the said thirty days and a final claim within thirty days of the end of the event giving rise to the claim.
Price Adjustment
The Project Manager shall adjust the Contract Price if taxes, duties and other levies are changed between the date 30 days before the submission of tenders for the Contract and the date of Completion. The adjustment shall be the change in the amount of tax payable by the Contractor.
The Contract Price shall be deemed to be based on exchange rates current at the date of tender submission in calculating the cost to the Contractor of materials to be specifically imported (by express provisions in the Contract Bills of Quantities or Specifications) for permanent incorporation in the Works. Unless otherwise stated in the Contract, if at any time during the period of the Contract exchange rates shall be varied and this shall affect the cost to the Contractor of such materials, then the Project Manager shall assess the net difference in the cost of such materials. Any amount from time to time so assessed shall be added to or deducted from the Contract Price, as the case may be.
Unless otherwise stated in the Contract, the Contract Price shall be deemed to have been calculated in the manner set out below and in sub-clauses 25.4 and 25.5 and shall be subject to adjustment in the events specified thereunder;
The prices contained in the Contract Bills of Quantities shall be deemed to be based upon the rates of wages and other
emoluments and expenses as determined by the Joint Building Council of Kenya (J.B.C.) and set out in the schedule of basic rates issued 30 days before the date for submission of tenders.A copy of the schedule used by the Contractor in his pricing shall be attached in the Appendix to Conditions of Contract.
Upon J.B.C. determining that any of the said rates of wages or other emoluments and expenses are increased or decreased, then the Contract Price shall be increased or decreased by the amount assessed by the Project Manager based upon the difference, expressed as a percentage, between the rate set out
in the schedule of basic rates issued 30 days before the date for submission of tenders and the rate published by the J.B.C. and applied to the quantum of labour incorporated within the amount of Work remaining to be executed at the date of publication of such increase or decrease.
No adjustment shall be made in respect of changes in the rates of wages and other emoluments and expenses which occur after the date of Completion except during such other period as may be granted as an extension of time under clause 17.0 of these Conditions.
The prices contained in the Contract Bills of Quantities shall be deemed to be based upon the basic prices of materials to be permanently incorporated in the Works as determined by the J.B.C. and set out in the schedule of basic rates issued 30 days before the date for submission of tenders. A copy of the schedule used by the Contractor in his pricing shall be attached in the Appendix to Conditions of Contract.
Upon the J.B.C. determining that any of the said basic prices are increased or decreased then the Contract Price shall be increased or decreased by the amount to be assessed by the Project Manager based upon the difference between the price set out in the schedule of basic rates issued 30 days before the date for submission of tenders and the rate published by the J.B.C. and applied to the quantum of the relevant materials which have not been taken into account in arriving at the amount of any interim certificate under clause 23 of these Conditions issued before the date of publication of such increase or decrease.
No adjustment shall be made in respect of changes in basic prices of materials which occur after the date for Completion except during such other period as may be granted as an extension of time under clause 17.0 of these Conditions.
The provisions of sub-clause 25.1 to 25.2 herein shall not apply in respect of any materials included in the schedule of basic rates.
Retention
The Employer shall retain from each payment due to the Contractor the proportion stated in the Appendix to Conditions of Contract until Completion of the whole of the Works. On Completion of the whole of the Works, half the total amount retained shall be repaid to the Contractor and the remaining half when the Defects Liability Period has passed and the Project Manager has certified that all defects notified to the Contractor before the end of this period have been corrected.
Liquidated Damages
The Contractor shall pay liquidated damages to the Employer at the rate stated in the Appendix to Conditions of Contract for each day that the actual Completion Date is later than the Intended Completion Date. The Employer may deduct liquidated damages from payments due to the Contractor. Payment of liquidated damages shall not alter the Contractors liabilities.
If the Intended Completion Date is extended after liquidated damages have been paid, the Project Manager shall correct any overpayment of liquidated damages by the Contractor by adjusting the next payment certificate. The Contractor shall be paid interest on the overpayment, calculated from the date of payment to the date of repayment, at the rate specified in Clause 23.30
Securities
The Performance Security shall be provided to the Employer no later than the date specified in the Letter of Acceptance and shall be issued in an amount and form and by a reputable bank acceptable to the Employer, and denominated in Kenya Shillings. The Performance Security shall be valid until a date 30 days beyond the date of issue of the Certificate of Completion.
Dayworks
If applicable, the Dayworks rates in the Contractors tender shall be used for small additional amounts of Work only when the Project Manager has given written instructions in advance for additional work to be paid for in that way.
All work to be paid for as Dayworks shall be recorded by the Contractor on Forms approved by the Project Manager. Each
completed form shall be verified and signed by the Project Manager within two days of the Work being done.
The Contractor shall be paid for Dayworks subject to obtaining signed Dayworks forms.
Liability and Insurance
From the Start Date until the Defects Correction Certificate has been issued, the following are the Employers risks:
The risk of personal injury, death or loss of or damage to property (excluding the Works, Plant, Materials and Equipment), which are due to;
use or occupation of the Site by the Works or for the purpose of the Works, which is the unavoidable result of the Works, or
negligence, breach of statutory duty or interference with any legal right by the Employer or by any person employed by or contracted to him except the Contractor.
The risk of damage to the Works, Plant, Materials, and Equipment to the extent that it is due to a fault of the Employer or in Employers design, or due to war or radioactive contamination directly affecting the place where the Works are being executed.
From the Completion Date until the Defects Correction Certificate has been issued, the risk of loss of or damage to the Works, Plant, and Materials is the Employers risk except loss or damage due to;
a defect which existed on or before the Completion Date.
an event occurring before the Completion Date, which was not itself the Employers risk
the activities of the Contractor on the Site after the Completion Date.
From the Start Date until the Defects Correction Certificate has been issued, the risks of personal injury, death and loss of or damage to property (including, without limitation, the Works, Plant, Materials, and Equipment) which are not Employers risk are Contractors risks.
The Contractor shall provide, in the joint names of the Employer and the Contractor, insurance cover from the Start Date to the end of the Defects Liability Period, in the amounts stated in the Appendix to Conditions of Contract for the following events;
loss of or damage to the Works, Plant, and Materials;
loss of or damage to Equipment;
loss of or damage to property (except the Works, Plant, Materials, and Equipment) in connection with the Contract, and
personal injury or death.
Policies and certificates for insurance shall be delivered by the Contractor to the Project Manager for the Project Managers approval before the Start Date. All such insurance shall provide for compensation required to rectify the loss or damage incurred.
If the Contractor does not provide any of the policies and certificates required, the Employer may effect the insurance which the Contractor should have provided and recover the premiums from payments otherwise due to the Contractor or, if no payment is due, the payment of the premiums shall be a debt due.
Alterations to the terms of an insurance shall not be made without the approval of the Project Manager. Both parties shall comply with any conditions of insurance policies.
Completion and taking over
Upon deciding that the Works are complete, the Contractor shall issue a written request to the Project Manager to issue a Certificate of Completion of the Works. The Employer shall take over the Site and the Works within seven [7] days of the Project Managers issuing a Certificate of Completion.
Final Account
The Contractor shall issue the Project Manager with a detailed account of the total amount that the Contractor considers payable to him by the Employer under the Contract before the end of the Defects Liability Period. The Project Manager shall issue a Defects Liability Certificate and certify any final payment that is due to the Contractor within 30 days of receiving the Contractors account if it is correct and complete. If it is not, the Project Manager shall issue within 30 days a schedule that states the scope of the corrections or additions that are necessary. If the final account is still unsatisfactory after it has been resubmitted, the Project Manager shall decide on the amount payable to the Contractor and issue a Payment Certificate. The Employer shall pay the Contractor the amount due in the Final Certificate within 60 days.
Termination
The Employer or the Contractor may terminate the Contract if the other party causes a fundamental breach of the Contract. These
fundamental breaches of Contract shall include, but shall not be limited to, the following;
the Contractor stops work for 30 days when no stoppage of work is shown on the current program and the stoppage has not been authorised by the Project Manager;
the Project Manager instructs the Contractor to delay the progress of the Works, and the instruction is not withdrawn within 30 days;
the Contractor is declared bankrupt or goes into liquidation other than for a reconstruction or amalgamation;
a payment certified by the Project Manager is not paid by the Employer to the Contractor within 30 days (for Interim Certificate) or 60 days (for Final Certificate)of issue.
the Project Manager gives notice that failure to correct a particular defect is a fundamental breach of Contract and the Contractor fails to correct it within a reasonable period of time determined by the Project Manager;
the Contractor does not maintain a security, which is required.
When either party to the Contract gives notice of a breach of Contract to the Project Manager for a cause other than those listed under Clause 33.1 above, the Project Manager shall decide whether the breach is fundamental or not.
Notwithstanding the above, the Employer may terminate the Contract for convenience.
If the Contract is terminated, the Contractor shall stop work immediately, make the Site safe and secure, and leave the Site as soon as reasonably possible. The Project Manager shall immediately thereafter arrange for a meeting for the purpose of taking record of the Works executed and materials , goods, equipment and temporary buildings on Site.
Payment Upon Termination
If the Contract is terminated because of a fundamental breach of Contract by the Contractor, the Project Manager shall issue a certificate for the value of the Work done and materials ordered and delivered to Site up to the date of the issue of the certificate. Additional liquidated damages shall not apply. If the total amount due to the Employer exceeds any payment due to the Contractor, the difference shall be a debt payable by the Contractor.
If the Contract is terminated for the Employers convenience or because of a fundamental breach of Contract by the Employer, the Project Manager shall issue a certificate for the value of the Work done, materials ordered, the reasonable cost of removal of equipment, repatriation of the Contractors personnel employed solely on the
Works, and the Contractors costs of protecting and securing the Works.
The Employer may employ and pay other persons to carry out and complete the Works and to rectify any defects and may enter upon the Works and use all materials on the Site, plant, equipment and temporary works.
The Contractor shall, during the execution or after the completion of the Works under this clause remove from the Site as and when required, within such reasonable time as the Project Manager may in writing specify, any temporary buildings, plant, machinery, appliances, goods or materials belonging to or hired by him, and in default the Employer may (without being responsible for any loss or damage) remove and sell any such property of the Contractor, holding the proceeds less all costs incurred to the credit of the Contractor.
Until after completion of the Works under this clause the Employer shall not be bound by any other provision of this Contract to make any payment to the Contractor, but upon such completion as aforesaid and the verification within a reasonable time of the accounts therefore the Project Manager shall certify the amount of expenses properly incurred by the Employer and, if such amount added to the money paid to the Contractor before such determination exceeds the total amount which would have been payable on due completion in accordance with this Contract the difference shall be a debt payable to the Employer by the Contractor; and if the said amount added to the said money be less than the said total amount, the difference shall be a debt payable by the Employer to the Contractor.
Release from Performance
If the Contract is frustrated by the outbreak of war or by any other event entirely outside the control of either the Employer or the Contractor, the Project Manager shall certify that the Contract has been frustrated. The Contractor shall make the Site safe and stop Work as quickly as possible after receiving this certificate and shall be paid for all Work carried out before receiving it.
Corrupt gifts and payments of commission
The Contractor shall not;
Offer or give or agree to give to any person in the service of the
Employer any gift or consideration of any kind as an inducement or reward for doing or forbearing to do or for having done or forborne to do any act in relation to the obtaining or execution of this or any other Contract for the Employer or for showing or forbearing to show favour
or disfavour to any person in relation to this or any other contract for the Employer.
Enter into this or any other contract with the Employer in connection with which commission has been paid or agreed to be paid by him or on his behalf or to his knowledge, unless before the Contract is made particulars of any such commission and of the terms and conditions of any agreement for the payment thereof have been disclosed in writing to the Employer.
Any breach of this Condition by the Contractor or by anyone employed by him or acting on his behalf (whether with or without the knowledge of the Contractor) shall be an offence under the provisions of the Public Procurement Regulations issued under The Exchequer and Audit Act Cap 412 of the Laws of Kenya.
Settlement Of Disputes
In case any dispute or difference shall arise between the Employer or the Project Manager on his behalf and the Contractor, either during the progress or after the completion or termination of the Works, such dispute shall be notified in writing by either party to the other with a request to submit it to arbitration and to concur in the appointment of an Arbitrator within thirty days of the notice. The dispute shall be referred to the arbitration and final decision of a person to be agreed between the parties. Failing agreement to concur in the appointment of an Arbitrator, the Arbitrator shall be appointed by the Chairman or Vice Chairman of any of the following professional institutions;
Architectural Association of Kenya
Institute of Quantity Surveyors of Kenya
Association of Consulting Engineers of Kenya
Chartered Institute of Arbitrators (Kenya Branch)
Institution of Engineers of Kenya
On the request of the applying party. The institution written to first by the aggrieved party shall take precedence over all other institutions.
The arbitration may be on the construction of this Contract or on any matter or thing of whatsoever nature arising thereunder or in connection therewith, including any matter or thing left by this Contract to the discretion of the Project Manager, or the withholding by the Project Manager of any certificate to which the Contractor may claim to be entitled to or the measurement and valuation referred to in clause 23.0 of these conditions, or the rights and liabilities of the parties subsequent to the termination of Contract.
Provided that no arbitration proceedings shall be commenced on any dispute or difference where notice of a dispute or difference has not been given by the applying party within ninety days of the occurrence or discovery of the matter or issue giving rise to the dispute.
Notwithstanding the issue of a notice as stated above, the arbitration of such a dispute or difference shall not commence unless an attempt has in the first instance been made by the parties to settle such dispute or difference amicably with or without the assistance of third parties. Proof of such attempt shall be required.
Notwithstanding anything stated herein the following matters may be referred to arbitration before the practical completion of the Works or abandonment of the Works or termination of the Contract by either party:
The appointment of a replacement Project Manager
upon the said person ceasing to act.
Whether or not the issue of an instruction by the Project
Manager is empowered by these Conditions.
Whether or not a certificate has been improperly withheld
or is not in accordance with these Conditions.
Any dispute or difference arising in respect of war risks
or war damage.
All other matters shall only be referred to arbitration after the completion or alleged completion of the Works or termination or alleged termination of the Contract, unless the Employer and the Contractor agree otherwise in writing.
The Arbitrator shall, without prejudice to the generality of his powers, have powers to direct such measurements, computations, tests or valuations as may in his opinion be desirable in order to determine the rights of the parties and assess and award any sums which ought to have been the subject of or included in any certificate.
The Arbitrator shall, without prejudice to the generality of his powers,
have powers to open up, review and revise any certificate, opinion, decision, requirement or notice and to determine all matters in dispute which shall be submitted to him in the same manner as if no such certificate, opinion, decision requirement or notice had been given.
The award of such Arbitrator shall be final and binding upon the parties.
APPENDIX TO CONDITIONS OF CONTRACT
Name of Employer: THE GOVERNOR, COUNTY GOVERNMENT OF KISUMU
P.O. BOX 2738-40100 NAIROBI
Name of Employers Representative: THE CHIEF OFFICER, ROADS AND PUBLIC WORKS, P.O. BOX 2738-40100, KISUMU
Name of Project Manager: SUB COUNTY ENGINEER, NYANDO
The name of Contract is: . CONSTRUCTION OF MBITA/SEGA SEGA TWIN CULVERT
Tender No: CGK/R&PW/CRF/KC/MTC/18-19/060
Scope of the Works: AS PER BILLS OF QUANTITIES IN THIS TENDER
DOCUMENT AND THE CONTRACT AGREEMENT
The Tender Opening Date and Time will be on
at
. At Prosperity House- 1st floor Boardoom.
The Start Date shall be as stated in the Project Managers Notice to commence work.
The Intended Completion period for the whole of the Works shall be 10 WEEKS from the date of commencement.
The Site Possession Date shall be the date site is handed over to the Contractor by the Project Manager.
The Site is located at KISUMU COUNTY
The Defects Liability Period is 3 MONTHS
Amount of Tender Security is Kshs
(2.0% of the Tender Price) in the Form of Tender Security or a Bankers Cheque, from a reputable Commercial Bank, to the Employer.
The amount of Performance Security is 10% of CONTRACT PRICE in form of a Performance bank Guarantee, from a reputable Commercial Bank, acceptable to the Employer.
Retention Money will be 10% of the INTERIM CERTIFICATE with a limit of 10% of the Contract Price or such other sum as shall become payable.
BID SECURING DECLARATION FORM
[The Bidder shall complete in this Form in accordance with the instructions indicated]
Date:
..
.. [insert date (as day, month and year) of Bid Submission]
Tender No.
..[insert number of bidding process]
To:
. [insert
complete name of Purchaser]
We, the undersigned, declare that:
We understand that, according to your conditions, bids must be supported by a Bid-Securing Declaration.
We accept that we will automatically be suspended from being eligible for
bidding in any contract with the Purchaser for the period of time of 5 years starting on the date of expiration of tender validity period, if we are in breach of our obligation(s) under the bid conditions, because we
have withdrawn our Bid during the period of bid validity specified by us in the Bidding Data Sheet; or
having been notified of the acceptance of our Bid by the Purchaser during the period of bid validity,
fail or refuse to execute the Contract, if required, or
fail or refuse to furnish the Performance Security, in accordance with the Instruction to tenderers.
We understand that this Bid Securing Declaration shall expire if we are not the successful Bidder, upon the earlier of
our receipt of a copy of your notification of the name of the
successful Bidder; or
twenty-eight days after the expiration of our Tender.
We understand that if we are a Joint Venture, the Bid Securing Declaration must be in the name of the Joint Venture that submits the bid, and the Joint Venture has not been legally constituted at the time of bidding, the Bid Securing Declaration shall be in the names of all future partners as named in the letter of intent.
Signed:
[signature of person whose name and capacity are shown] in
the capacity of
[insert legal capacity of
person signing the Bid Securing Declaration]
Name:
[complete name of person signing the Bid Securing Declaration]
Duly authorized to sign the bid for and on behalf of:
[complete name of Bidder]
Dated on
. day of
.,
. [date of signing]
Section D
SPOT IMPROVEMENT
STANDARD SPECIFICATION FOR ROADS AND BRIDGE CONSTRUCTIONIndexPage101Location and Extent of Site1.1102Extent of Contract1.1103Drawings1.1104Programme1.1105Order of Work1.1106Submissions to the Engineer1.2107Certificates of completion1.2108Method of construction1.3109Notice of Operations1.3110Units of Measurements, Abbreviations and Terminology1.3111National Specifications1.5112Other Contractors1.7113Transport of Workmen1.7114Temporary Work1.7115Construction Generally1.7116Protection from water1.9117Health Safety and Accidents1.10118Preservation and Maintenance Fences and Gates1.11119Use of Explosives1.11120Protection of Existing Works and Services1.11121Diversion of Services1.12122Closure of Roads1.12123Liaison with Government and Police Officials1.12124Provision of Land1.12125Water Supply1.13126Materials and Manufactured Articles1.13127Information from Exploratory Boring and Test Pits1.14128Storage of Materials and Manufactured Articles1.14129Test Certificates1.14130Progress Photographs1.14131Signboards1.15
132Housing Accommodation for the Engineer and his Staff, Offices and Survey Equipment and Furniture
1.15133Time for Erection of the Engineers Staff Houses, Offices and Laboratories1.15
134Insurance and Ownership of the Engineers Staff Houses, Offices
Laboratories, Furniture and Equipment
1.15
135Maintenance of the Engineers Staff Houses, Offices, Laboratories, Furniture
and Equipment
1.16136Removal of Camps1.16137Attendance upon the Resident Engineer and his Staff1.16138Provision of Vehicles1.17139Miscellaneous Accounts1.17140Payment of Overtime for Engineers Junior Staff1.17
STANDARD SPECIFICATION FOR ROADS AND BRIDGE CONSTRUCTIONIndexPage141Measurement of Payment1.18
SECTION 2 MATERIALS AND TESTING OF MATERIALS201Scope of Section2.1202Testing by the Contractor2.1203Acceptance Standards of Materials2.1204Sieves2.1205Soils and Gravels2.2206Stone, Aggregate, Sand and Filters2.4207Cement2.7208Lime2.7209Cement or Lime Treated Materials2.7210Concrete2.9211Bituminous Binders2.11212Bituminous Mixes2.14213Reinforcing Steel2.14214Pre-stressing Steel2.14215Concrete Pipes and Fittings2.15216Metal Pipes and Arches2.16217Paints for Structures2.16218Paint for Road Marking2.18219Hot-applied Thermoplastic Material for Road Marking2.18220Reflective Materials on Road Signs2.18221Colours for Road Signs2.21222Waterproof Paper2.21223Galvanized Coatings2.22224Trials to Confirm Compliance with Specifications2.22
225Construction Control Testing for Earthwork Layers, Pavement Layers and
Backfill to Drainage Works and Structures
2.24226Frequency of Testing2.25227Measurement and Payment2.29218Paint for Road Marking2.18219Hot-applied Thermoplastic Material for Road Marking2.18220Reflective Materials on Road Signs2.18221Colours for Road Signs2.21222Waterproof Paper2.21223Galvanized Coatings2.22224Trials to Confirm Compliance with Specifications2.22
225Construction Control Testing for Earthwork Layers, Pavement Layers and
Backfill to Drainage Works and Structures
2.24226Frequency of Testing2.25227Measurement and Payment2.29
STANDARD SPECIFICATION FOR ROADS AND BRIDGE CONSTRUCTIONIndexPage
SECTION 3 SETTING OUT AND TOLERANCES301Setting Out3.1302Tolerances3.2
303Rectification of Earthwork and Pavement Layers Outside Permitted
Tolerances
3.4304Measurement and payment3.6
SECTION 4 SITE CLEARANCE AND TOPSOIL STRIPPING401Site Clearance4.1402Removal of Topsoil4.2403Removal of Structures, Fences and Obstructions4.2404Protection of Fences, Trees, Hedges, etc.4.2405Measurement and Payment4.3
SECTION 5 EARTHWORKS501Scope of Section5.1502General5.1503Classification of Materials5.1504Preparation Prior to Forming Embankments5.2505Construction of Embankments5.4506Swamps5.3507Rockfill to Swamps5.4508Compaction of Earthworks5.6509Mass Haul Diagram5.7510Spoil Material5.7511Borrow Pits5.7512Proofrolling5.7513Trimming of Slopes5.8514Topsoiling and Grassing5.8515Side Drains5.8516Treated Materials5.9517Measurement and Payment5.9SECTION 6 QUARRIES, BORROW PITS, STOCKPILES AND SPOIL AREAS601General6.1602Definitions6.1603Provision of Land6.2604Entry upon Land6.4605Safety and Public Health Requirements6.4606Access Roads and Traffic Control6.5
STANDARD SPECIFICATION FOR ROADS AND BRIDGE CONSTRUCTION
IndexPage607Site Clearance and Removal of Topsoil and Overburden6.5608Mixing, Selecting and Stockpiling of Materials6.5609Material Utilization6.6610Measurement and Payment6.7
SECTION 7 EXCAVATION AND FILLING FOR STRUCTURES701Scope of Section7.1702Classification of Excavation7.1703Excavation of Foundations for structures7.1704Excavation to be Kept Dry7.1705Foundations and Abutments Cast against In-situ Material7.2706Surplus Excavated and Backfilling Materials7.2707Backfilling of Excavations and Filling for Structures7.2708Protection of Structures7.3709Excavation for River Training and New Watercourse7.3710Stone Pitching7.3711Gabions7.4712Rip-rap7.5713Measurement and Payment7.6
SECTION 8 CULVERT AND DRAINAGE WORKS801Scope of Section8.1802Order of Works8.1803Classification of Excavation8.2804Excavation for Culverts and Drainage Works8.2805Excavation in Hard Material8.3806Water in Excavation8.4807Concrete Pipes8.4808Corrugated Metal Pipes and Arches8.4809Bedding and Laying of Pipe Culverts8.4810Jointing Concrete Pipes8.6811Concrete Beds Surrounds and Haunches8.7812Backfill8.8813Half Round Concrete Channels8.9814Subsoil Drains8.10815Protection Works8.10816Minor Drainage Structures8.11
817Mitre Drains, Cut-off Drains, Side Drains, Culvert, Outfall Drains and Earth
Drains8.11818Scour Checks8.12819Cleaning and Maintenance8.13820Measurement and Payment8.19
SECTION 9 PASSAGE OF TRAFFIC
STANDARD SPECIFICATION FOR ROADS AND BRIDGE CONSTRUCTIONIndexPage901Scope of Section9.1902Improvements to Existing Roads9.1903Maintenance of Existing Roads9.2904Construction of Deviations9.2905Maintenance of Deviations9.5906Passage of Traffic through the Works9.5907Signs, Barriers and Lights9.5908Diversion of Access onto New Construction9.6909Assistance to Public9.8910Access Roads9.8911Contractors Construction Traffic9.9912Measurement and Payment9.10
SECTION 10 GRAVEL WEARING COURSE1001General10.11002Classification of Material10.11003Material Requirements10.21004Order of Work10.21005Preparation of Formation10.31006Setting Out10.31007Laying and Compacting Gravel Wearing Course10.31008Proofrolling1041009Tolerances1041010Maintenance1041011Measurement and Payment104
SECTION 11 SHOULDERS TO PAVEMENT1101Definitions11.11102Materials for Construction of Shoulders11.11103Construction of Shoulders11.11104Setting Out and Tolerances11.11105Surface treatment of Shoulders11.11106Measurement and Payment11.2
SECTION 12 NATURAL MATERIAL SUBBASE AND BASE1201General12.11202Classification of Material12.11203Material Requirements12.21204Laying and Compacting12.41205Proofrolling12.51206Setting Out and Tolerances12.51207Drainage of Subgrade, Subbase and Base Layers12.61208Treated Materials12.6
STANDARD SPECIFICATION FOR ROADS AND BRIDGE CONSTRUCTIONIndexPage1209Measurement and Payment12.6
SECTION 13 GRADED CRUSHED STONE SUBBASE AND BASE1301Definitions13.11302Sources of Materials13.11303Material Requirements13.11304Crushing, Screening and Mixing13.31305Transporting Graded Crushed Stone13.41306Laying and Compacting Graded Crushed Subbase and base13.41307Proofrolling13.51308Setting Out and Tolerances13.51309Treated Materials13.51310Measurement and Payment13.5
SECTION 14 CEMENT AND LIME TREATED SUBGRADE, SUBBASE AND BASE1401Scope of Section14.11402Sources of Materials14.11403Material Requirements14.21404Amount of Stabilizer to be Added14.21405Mix-in-place Method of Construction14.21406Stationary plant method of construction14.41407Compaction and finishing14.51408Joints between new and existing work14.51409Protection and curing14.61410Traffic14.71411Tolerances14.71412Measurement and payment14.8
SECTION 14A LEAN CONCRETE14A/01Scope of section14A.114A/02source of materials14A.114A/03Material requirements14A.114A/04Mix requirements14A.214A/05Method of construction14A.314A/06Traffic14A.414A/07Setting out and tolerance14A.5
14A/08
Measurement and payment14A.5
SECTION 15 BITUMINOUS SURFACE TREATMENTS AND SURFACE DRESSINGS1501Scope of Section15.1
STANDARD SPECIFICATION FOR ROADS AND BRIDGE CONSTRUCTIONIndexPagePart A - General1501AScope of Part A15.21502ABituminous Binder Specifications15.21503ABituminous Binder Storage and Handling15.21504AHeating of Bituminous Binder15.21505AAdhesion Agent15.41506AConstruction Limitations15.41507ASafety precautions15.41508AMeasurement and payment15.4Part B - Prime Coat and Tack Coat1501BDefinitions15.51502BMaterials for Prime Coat and Tack Coat15.51503BPreparation of Surface15.51504BSpraying of Prime Coat and Tack Coat15.61505BCuring and Blinding of Prime Coat15.71506BTolerances15.71507BMeasurement and payment15.7Part C - Surface Dressing1501CDefinitions15.81502CMaterials for Surface Dressing15.81503CRate of Application of Binder and Chippings15.91504CCrushing, Screening, Washing and Stockpiling Chippings15.91505CPre-coated Chippings15.101506CConstruction Plant for Surface Dressing15.101507CPreparation of Surface15.121508CApplication of Surface Dressing15.121509CAftercare and Control of Traffic15.131510CTolerances15.131511CMeasurement and payment15.14Part D Sand Seal1501DDefinitions15.151502DMaterials for Sand Seal15.151503DRate of Application of Binder and Fine Aggregates15.151504DConstruction15.161505DAftercare and Control of Traffic15.161506DTolerances15.161507DMeasurement and payment15.17Part E -Gravel Seal1501EDefinitions15.181502EMaterial for Gravel Seal15.191503ERate of Application of Binder and Aggregates15.191504 EConstruction15.191505EAftercare and Control of Traffic15.191506ETolerances15.161507EMeasurement and payment15.20
STANDARD SPECIFICATION FOR ROADS AND BRIDGE CONSTRUCTIONIndexPagePart F Emulsion Slurry Seal1501FDefinitions15.211502FMaterials for Slurry Seal15.211503FPreparation of Slurry Mixture15.221504FRate of Application of Slurry Mixture15.221505FConstruction15.221506FCuring and Control of Traffic15.231507FTolerances15.231508FMeasurement and payment15.23
SECTION 16 BITUMINOUS MIX BASES, BINDER COURSES AND WEARING COURSES1601Scope of Section16.1Part A- General1601AScope of part A16.21602ARequirement from other Sections16.21603AConstruction Plant16.21604APreparation of Surface16.31605ADesign and working Mixes16.31606ASite Trials to Confirm Compliance with Specifications16.41607AMixing of Aggregates and Bitumen16.61608ATransporting the mixture16.61609ALaying the mixture16.61610ACompaction16.61611AFinishing, Joints and Edges16.71612ASampling and Testing of Bituminous mixtures16.81613AQuality Control Testing16.81614ATolerances16.81615AMeasurement and payment16.9Part B- Asphalt Concrete for Surfacing1601BDefinitions16.101602BMaterials for Asphalt Concrete16.101603BGrading Requirements16.121604BRequirements for Asphalt Concrete16.121605BMixing and Laying Asphalt Concrete16.121606BCompaction16.131607BMeasurement and payment16.14Part C - Dense Bitumen Macadam for Base1601CDefinitions16.151602CMaterials Requirements16.151603CGrading Requirements for Dense Bitumen Macadam16.161604CRequirements for Dense Bitumen Macadam16.161605CMixing and Laying of Dense Bitumen Macadam16.171606CCompaction16.17
STANDARD SPECIFICATION FOR ROADS AND BRIDGE CONSTRUCTIONIndexPage1607CSealing of Dense Bitumen Macadam16.171608CMeasurement and payment16.19Part D - Cold Asphalt for Surfacing, Base, Levelling Course and Patching1601DDefinitions16.201602DMaterials for Cold Asphalt16.201603DGrading Requirements for Cold Asphalt16.211604DRequirements for Cold Asphalt16.211605DMixing and Laying Cold Asphalt16.211606DCompaction16.221607DMeasurement and payment16.22
SECTION 17 - CONCRETE WORKS1701Scope of Section17.11702Definitions17.11703Materials for Concrete17.11704The Design of Concrete Mixes17.81705Mixing Concrete17.151706Hand Mixed Concrete17.171707Transport of Concrete17.171708Placing of Concrete17.171709Compaction of Concrete17.211710Curing of Concrete17.211711Protection of Fresh Concrete17.231712Concreting in Hot Weather17.241713Finishes on Unformed Surfaces17.251714Mortar17.261715Concrete for Secondary Purposes17.271716Records of Concrete Placing17.281717Construction Joints17.281718Expansion of Construction Joints17.291719Water-stops17.291720Grouting of Pockets and Holes and Underpinning of Base-plates17.301721Formwork for Concrete17.311722Construction of formwork and false-work17.311723Preparation of formwork17.321724Removal of Formwork17.331725Surface Finishes17.341726Tolerances17.361727Remedial work to Defective Surfaces17.371728Reinforcement for Concrete17.371729Storage of Reinforcements17.381730Bending Reinforcement17.381731Fixing Reinforcement17.381732Precast Concrete17.401733Formwork for Precast Units17.40
STANDARD SPECIFICATION FOR ROADS AND BRIDGE CONSTRUCTIONIndexPage1734Reinforcement for Precast Units17.401735Casting of units17.401736Curing Precast Units17.411737Dimensional Tolerances of Precast Units17.411738Surface Finish of Precast Units17.411739Handling and Storage of Precast Units17.421740Testing Precast Units17.431741Measurement and payment17.47
SECTION 18 - PRE-STRESSD CONCRETE WORK1801Scope of Section18.11802General18.11803Ducting18.11804Anchorages18.11805Pre-stressing Tendons18.21806Installation of Pre-stressing Tendons18.21807Jacks for Pre-stressing18.31808Tensioning Operations18.31809Post-tensioning18.31810Pre-tensioning18.41811Bonding and Grouting18.41812Camber of Pre-stressed Precast Beams18.61813Rejection of Pre-stressed work18.71814Transport and Storage of Pre-stressed Units18.61815Jointing Precast Units18.71816Testing Pre-stressed work18.71817Measurement and Payment18.8
SECTION 19 - STRUCTURAL STEELWORK1901General19.11902Applicable Standards19.21903Materials19.21904Storage of Materials19.21906Preparation of Edges and Ends of Plates19.21907Welding19.31908Bolting19.51909Transportation, Handling and Erection19.71910Surface Preparation of Steelwork19.71911Painting19.81912Paint Systems19.91913Damaged Surfaces19.91914Measurement and Payment19.10
STANDARD SPECIFICATION FOR ROADS AND BRIDGE CONSTRUCTIONIndexPage
SECTION 20 - ROAD FURNITURE2001Road Reserve Boundary Posts20.12002Fencing and Gates20.12003Edge Marker Posts20.12004Permanent Road Signs20.22005Road Marking20.32006Guardrails20.42007Kerbs20.62008Kilometer Marker Posts20.62009Rumble Strips20.62010Trees20.72011Measurement and payment20.10
SECTION 21 - MISCELLANEOUS BRIDGE WORKS2101Waterproofing to Structures21.12102Bridge Bearings21.12103Movement Joints and Sealants21.22104Pipe Handrail to Bridges21.42105Guardrails to Bridges21.42106Surfacing to Bridges21.42107Weep-holes21.42108Measurement and Payment21.5
SECTION 22 - DAYWORKS2201General22.12202Measurement and payment22.1
SECTION 25 - HIV/AIDS, GENDER ISSUES, SOCIAL ISSUES AND LOCAL PARTICIPATION2501Scope25.12502Interpretation and documentation25.22503Gender requirements25.3 SECTION 1 PRELIMINARIES
This bill comprises those items that are required at the Commencement and Completion of the Works or that are Provisional Items applicable for the duration of the Works.
01-50- 001 Mobilization and Establishment of the Site
The Contractor shall provide all equipment, tools, materials, temporary offices, stores and housing required to carry out the Works.
The Contractor shall ensure that all possible means of protection are given to the labour force at all times. Such protection shall include provision of high visibility clothing or vests, goggles and masks for workers in potentially dangerous locations or dealing with potentially harmful materials. The Contractor shall also maintain first aid kits with a minimum of the following items:-
Non Stick wound dressing
Selection of plaster/band aids
Crepe bandages
Gauze and cotton wool
Antiseptic solution (washing wounds)
Antiseptic cream Betadine, Burnol
Pain killers Panadol, Disprin
Anti diarrhoea Immodium, Diadis, Charcoal
Anti histamine Piriton, Triludan
Anti nausea Stemetil
Eye ointment
Oral re-hydration sachets
Surgical gloves
Measurement and Payment: NA
01-60- 001 Contract Supervision
Provisional sum available for the Engineer for expenses incurred for supervising the contract as required in clause 137, such as allowances, casual wages,overtime and transportation within the project area as stated in clause 135.
Additional attendant staff,as required by the Engineer,shall be paid for under item1.08 of the BOQ
Engineers miscellaneous not limited to stationary,miscellaneous supervision personnel and claims is to be made or purchased by the contractor as reffered in clause 139,140 and 141.
Measurement and Payment:
Provisional Sum: Payable by the Contractor to the Engineer through certification as directed by the Engineer. No mark up is included in this item.
Work Method: NA
01-60- 002 Clearance on Completion
On Completion of the Works, all temporary housing, equipment, signs and tools shall be removed from the site, and the site left in good order to the satisfaction of the Engineer.
Measurement and Payment
The Lump Sum payment will be made upon approval by the Engineer that the Clearance has been satisfactorily carried out.
Work Method: NA
01-60-003 Insurance
The Contractor shall provide Insurance in accordance with the Conditions of Contract as indicated in the Appendix to form of tender for Rehabilitation and Improvement Contracts and Clause 14.1 for small works conditions of contract.
Measurement and Payment
Lump Sum payment for this item will be made upon the production of satisfactory evidence by the Contractor that Insurances have been affected.
Work Method: NA
01-60-004 Quality Control Tests
The Engineer may instruct the Contractor during the progress of the Works to carry out quality control tests to check materials and standards of workmanship, against the Specifications.
Where such tests indicate defective standards the Engineer shall instruct the Contractor to rectify the defects to the Engineers satisfaction and at the Contractors expense.
The Engineer shall include a Provisional Sum for this item to be expended only as and when the Contractor is instructed to carry out tests at approved material testing laboratories.
Measurement and Payment
Reimbursable item based on actual costs incurred by the contractor including sampling, transportation and testing.
Work Method: NA
01-60-005 Publicity Sign Boards
The Contractor shall provide Sign Boards as specified on the Drawings or as directed by the Engineer. The Sign Boards shall be placed at the beginning and end of the road or road bill covered by this Contract.
Sign Boards shall be maintained for the duration of the Works, and removed on completion.
Quality Control
The Engineer shall check that Sign Boards have been erected in accordance with Drawings and Specifications.
Measurement: Number
The unit of measurement shall be number of Sign Boards erected
Payment
The unit rate shall be the full compensation for labour, tools, materials and incidental costs required for carrying out the work.
Work Method: NA
SECTION 2
MATERIALS AND TESTING OF MATERIALS
All materials testing shall be in accordance with Section 2 of the Standard Specifications.
When instructed by the Engineer,the contractor shall submit test certificates of materials and goods required in connection to the works.
The certificates will act as proof in accordance to section 2 of the standard specification.
SECTION 3
SETTING OUT & TOLERANCES
301
SETTING OUT
a) In addition to the provisions of clause 3.01(a) if the traverse points to be used for the setting out are close to the existing carriageway and interfere with construction works then the Contractor will have to relocate them to a location where they will not be disturbed. The co-ordinates and heights of all traverse points so located shall be listed and provided to the Engineer for checking and/or approval. Contractor shall also monument the new centreline every 200m along straight and all salient points along curves by a pin in the concrete beacon before commencement of any works.
The road reserve boundary posts shall have 12mm diameter steel pins embedded in concrete, 200mm long with 25mm exposed to the air, sticking out form its top surface. This pin shall be co-ordinated and heighted and result of the same shall be provided to the Engineer for approval. Cost of these works shall be included in the rates as no separate item has been provided.
Commencement of the works shall not be permitted until this basic survey data has been provided and approved by the Engineer for at least 2 Kms of the road.
b) Detailed Setting Out
Reference pegs shall be 50mm by 50mm in section 600mm long driven 400mm firmly into ground and painted white above the ground. The offset from centre line shall be indicated by small nail 20mm to 25mm long with its head driven flush with the top of the peg.
Chainages, offset and reference elevation shall be clearly indicated to the sides of the peg to the satisfaction of the Engineer.
After cutting of benches and prior to commencement of earthworks or subgrade works, Contractor shall take cross-sections again and submit the copy of the same to Engineer for agreement. These cross-sections shall then be used as basis of measurement for all subsequent layers, unless otherwise stated.
SECTION 4- SITE CLEARANCE AND TOP SOIL STRIPPING
401 SITE CLEARANCE
Site Clearance shall be carried out as directed by the Engineer.
402 REMOVAL OF TOPSOIL
Topsoil shall include up to 200mm depth of any unsuitable material encountered in existing or newly constructed drains, drainage channels, and accesses.
403 REMOVAL OF STRUCTURES, FENCES AND OBSTRUCTIONS
When instructed by the Engineer, the Contractor shall demolish or remove any structure and payment for this shall be made on day works basis.
SECTION 5 EARTHWORK
504 PREPARATION PRIOR TO FORMING EMBANKMENT
Where benching is required for existing pavement to accommodate earthworks subgrade or subbase for widening the road, the rate for compaction of existing ground shall be deemed to cover this activity.
Excavation in the pavement of the existing road shall be kept dry. In the event of water penetrating the underlying layer, construction of the subsequent layers shall be postponed until the underlying layers are dry enough to accommodate the construction plant without deforming or otherwise showing distress.
Step construction shall be carried out per layer at the joint where excavating both vertically and perpendicular to the direction of the travel. The step shall be 500mm perpendicular to the direction of the travel and 150mm vertical unless otherwise instructed by the Engineer.
Special care shall be taken when compacting the new material at the joint ensuring that specified density is achieved.
505 CONSTRUCTION OF EMBANKMENTS
Only material approved by the Engineer shall be used for fill in embankments. Material with high swelling characteristics or high organic matter content and any other undesirable material shall not be used, unless specifically directed by the Engineer. Unsuitable material shall include:
(i) All material containing more than 5% by weight or organic matter (such as topsoil, material from swamps, mud, logs, stumps and other perishable material)
(ii) All material with a swell of more than 3% (such as black cotton soil) (iii) All clay of plasticity index exceeding 50.
(iv) All material having moisture content greater than 105% of optimum moisture content
(Standard Compaction)
Subgrade: Shall mean upper 300mm of earthworks either insitu or in fill and subgrade shall be provided for as part of earthworks operation and payment shall be made as fill. The material for subgrade shall have a CBR of not less than 8% measured after a 4 day soak in a laboratory mix compacted to a dry density of 100% MDD (AASHTO T99) and a swell of less than 1%.
Subgrade repair: Where directed by the Engineer, any localized failure in the subgrade shall be repaired by filling in selected soft, hard or natural of minimum CBR 30% and compacted in accordance with clauses in the specifications applying to normal subgrade.
Embankment repair: Where directed by the Engineer, any localized filling in soft, hard or natural; selected material requirements shall be executed in accordance with Clause 505.
508
COMPACTION OF ARTHWORKS
At pipe culverts, all fill above ground level around the culverts shall be compacted to density of
100% MDD (AASHTO T.99) up to the level of the top of the pipes or top of the surround(s), if
any and for a width equal to the internal diameter of the pipe on either side of the pipe(s) or surround(s) as applicable.
At locations adjacent to structures, all fill above ground level upto the underside of the subgrade shall be compacted to density of 105% MDD (AASHTO T.99). In case of fill around box culverts this should be carried out for the full width of the fill and for a length bounded by the vertical plane passing through the ends of the wingwalls.
Notwithstanding the provision of clause 503 of the standard Specification, Compaction of subgrade material (i.e. material immediately below formation) in cut areas shall not be carried out by the contractor in areas where the formation is formed in hard material, unless specific instructions to the contrary are issued by the Engineer.
Where improved sub-grade material shall be required, this shall be compacted and finished to the same standards and tolerances as those required for normal subgrade and clauses in the specifications applying to normal subgrade shall also apply.
511 BORROW PITS
The first part of the Standard Specification is amended as follows:-
Fill material which is required in addition to that provided by excavation shall be obtained from borrow pits to be located and provided by the Contractor but to the approval of the Engineer contrary to what has been stated.
51MEASUREMENTAND PAYMENT
Notwithstanding the provisions of clause 517 of the standard specifications, the rate for compaction of fill in soft material shall allow for the requirements of clause 508 of the special specification and no extra payment shall be made for compaction around pipe culverts (100% MDD AASHTO T.99).
SECTION 6
QUARRIES, BORROW PITS, STOCKPILES AND SPOIL AREAS
601 GENERAL
Notwithstanding any indications to the contrary in the Standard specification the Engineer will not make available to the Contractor any land for quarries, borrow pits, stockpiles and spoil areas, except for those areas in road reserves specifically approved by him.
The contractor will be entirely responsible for locating suitable sources of materials complying with the Standard and Special Specifications, and for the procurement, Wining, haulage to site of these materials and all costs involved therein. Similarly the contractor will be responsible for the provision and costs involved in providing suitable areas for stockpiling materials and spoil dumps. Should there be suitable sites for spoil dumps or stockpiles within the road reserve forming the site of the works the Contractor may utilise these subject to the approval of the Engineer.
No additional payment will be made to the Contractor to cover costs arising from the requirements for this Clause and the Contractor must include these costs in the rates inserted into the Bills of Quantities.
602
MATERIAL SITES
The information on possible material sites is given for the general guidance of bidders. Bidders are however advised to conduct their own investigation as the information contained therein is neither guaranteed nor warranted
603
PROVISION OF LAND
Notwithstanding any indications to the contrary in the Standard specification the Engineer will not make available to the Contractor any land for quarries, borrow pits, stockpiles and spoil areas, except for those areas in road reserves specifically approved by him.
The contractor will be entirely responsible for locating suitable sources of materials complying with the Standard and Special Specifications, and for the procurement, Wining, haulage to site of these materials and all costs involved therein. Similarly the contractor will be responsible for the provision and costs involved in providing suitable areas for stockpiling materials and spoil dumps. Should there be suitable sites for spoil dumps or stockpiles within the road reserve forming the site of the works the Contractor may utilise these subject to the approval of the Engineer.
No additional payment will be made to the Contractor to cover costs arising from the requirements for this Clause and the Contractor must include these costs in the rates inserted into the Bills of Quantities.
605
SAFETY AND PUBLIC HEALTH REQUIREMENTS
In addition to clause 605, the contractor shall allow for professionals to conduct lectures to the workers regarding the spread of HIV/Aids.
SECTION 7 EXCAVATION AND FILLING FOR STRUCTURES
703
EXCAVATION OF FOUNDATIONS FOR STRUCTURES
Unless otherwise instructed by the Engineer, all excavated surfaces in material other than hard material, on which foundations for structures shall be placed, shall be compacted to 100% MDD (AASHTO T.99) immediately before structures are constructed.
Paragraph 4, last line: - Replace "95%" with "100%".
707
BACKFILLING FOR STRUCTURES
Unless otherwise instructed by the Engineer, all backfilling material shall be compacted to a minimum of 100% MDD (AASHTO T.99).
709 EXCAVATIONS FOR RIVER TRAINING AND NEW WATER COURSES
Payments for river training and establishment of new watercourses shall only be made where such work constitute permanent works. Works done for road deviation or other temporary works shall not qualify for payment.
710STONE PITCHING
Stone pitching to drains, inlets and outlets of culverts to embankments and around structure shall consist of sound unweathered rock approved by the Engineer.
The stone as dressed shall be roughly cubical in shape with minimum dimensions of 150 x
150mm for normal thickness of stone pitching.
The surface to receive the pitching shall be compacted and trimmed to slope and the stone laid, interlocked and rammed into the material to give an even finished surface.
In areas where stone pitching has been damaged, the Contractor shall identify such areas and notify the Engineer for his agreement of the extent of the Works required and his approval and instructions to proceed with the Works. Stone Pitching Repair and Reconstruction shall be carried out in accordance with Clause 710 of the Standard Specifications.
The Works shall involve removal of the damaged stone pitching and reconstruction of the said areas in accordance with Clause 710 of the Standard Specifications by use of the sound salvaged material together with any necessary additional material where all such materials shall comply with Section 7 of the Standard Specifications.
Contrary to clause 713 of the standard specifications, the rates inserted for stone pitching shall allow for grouting.
711 GABIONS
Where instructed by the Engineer the Contractor will install gabions as protection works to washout areas or bridge Piers and or Abutments. Gabions shall be constructed in accordance with Clause 711 of the Standard Specification.
I n cases where existing gabions have been damaged, the Contractor shall identify them and notify the Engineer for his agreement of the extent of the Work required and his approval and instructions to proceed with the Works.
The Works shall involve removal of the damaged gabions / rocks, excavation to the correct levels and grades as directed by the Engineer, and in accordance with Clause 711 of the Standard Specifications and reconstruction with new gabions and other necessary materials as necessary. The damaged gabions shall be recovered and transported to the nearest KURAS Yard or M.O. R &P.W Department depot.
712
RIP-RAP PROTECTION WORK
Quarry waste or similar approved material shall be used to backfill scoured and eroded side, outfall and cut-off drain. The material shall be compacted to form a flat or curved surface preparatory to stone [pitching of drainage channels, existing and new scour checks as directed by the Engineer.
The surface to receive the pitching shall be compacted and trimmed to slope and the stone hand laid, interlocked and rammed into the material to give an even finished surface. The interstices of the Pitching shall be rammed with insitu material. The insitu material immediately behind the pitching shall be compacted to minimum density of 100% MDD compaction (AASHTO T.99)
714
BACKFILL BELOW STRUCTRURES
Where instructed this shall be carried out in compliance with the requirements of Clause 507 and 804 of the Standard Specification.
SECTION 8
CULVERTS AND DRAINAGE WORKS
801
SCOPE OF SECTION
The operations specified in this section apply to the installation of drainage works and reinstatement and improvement of the same.
In addition, this Section covers: -
- Extending of existing 450mm, 600mm and 900mm diameter pipes to be compatible with the increased road width or access.
- Desilting and cleaning of existing pipes and outfall drains to make them free flowing.
804
EXCAVATION FOR CULVERTS AND DRAINAGE WORKS
In the Standard Specifications, make the following amendments: -
In paragraph 6, line 3, and in paragraph 7, line 5 and in paragraph 11, line 6, delete "95%" and insert "100%".
Removal of Existing Pipe Culverts
Where instructed by the Engineer, the Contractor shall excavate and remove all existing blocked or collapsed culvert pipes of 450mm, 600mm and 900mm diameter including concrete surround, bedding, inlet and outlet structure.
The void left after removal of culvert pipes shall be widened as necessary to accommodate new concrete bedding, pipe and haunching.
The payment of this work shall be per linear metre of pipes removed, and the volume in m3 of inlet/outlet structure removed. The void left by removal of these pipes shall be carefully preserved in order to accommodate replacement of 450mm, 600mm or 900mm diameter pipe culverts as shall be directed by the Engineer.
Removal of Other Existing Drainage Structures
When instructed by the Engineer, the Contractor shall demolish or remove any other structure
and payment for this shall be made on day work basis.
Excavation for Culverts and Drainage Works
The Contractor shall carry out all excavations for new culverts and drainage works to the lines, levels, inclinations, and dimensions shown on the drawings or as instructed by the Engineer.
805
EXCAVATION IN HARD MATERIAL
In the Standard Specifications, Sub-clauses 805(a) and 805 (b) delete "95%" and insert "100%". In sub-clause 809(a), paragraph 1, line 1, substitute "95%" with "100%".
In sub-clause 809(c), paragraph 2, line 4, between the words "compacted" and "and shaped"
insert the words "to 100% MDD (AASHTO T.99)".
Hard material is material that can be excavated only after blasting with explosives or barring and wedging or the use of a mechanical breaker fitted with a rock point in good condition and operated correctly. Boulders of more than 0.2m3 occurring in soft material shall be classified as hard material.
809
BEDDING AND LAYING OF PIPE CULVERTS
Concrete pipes shall be laid on a 150mm thick concrete bed of class 15/20 and the pipes shall be bedded on a 1:3 cement: sand mortar at least 50mm thick, 150mm wide and extending the full length of the barrel.
The rates inserted shall allow for compaction of the bottom of excavation to 100% MDD (AASHTO T.99).
810
JOINTING CONCRETE PIPES
The concrete pipes for the culverts shall have ogee joints and will be jointed by 1:2 cement: sand mortar and provided with fillets on the outside as described in clause 810 of the Standard Specification.
812
BACKFILLING OVER PIPE CULVERTS
In the Standard Specifications, clause 812
a) Wherever the expression "dry density of 95% MDD (AASHTO T. 99)" occurs delete and replace with "dry density of 100% MDD (AASHTO T.99)".
The rates entered for laying of pipe culverts shall allow for backfilling to pipe culverts and compacting to 100% MDD (AASHTO T.99) and these works shall not be measured and paid for separately.
814
SUBSOIL DRAINS
In the event of excavation for repairs exposing local seepage, springs or unacceptably high water table, the Engineer may instruct the provision of counter fort or French drains.
These drains shall consist of a trench excavated to the alignment, width, depth and gradient instructed by the Engineer, and backfilled with approved compacted clean hard crushed rock material as specified in clause 815 of the standard specification. Where these drains lie within the carriageway the carriageway shall be reinstated with compacted stabilised gravel and surfaced with hot asphalt or a surface dressing as instructed by the Engineer.
815
INVERT BLOCK DRAINS AND HALF ROUND CHANNELS
Invert Block Drains and Half Round Channels shall be constructed as shown in the drawings provided in accordance with the Standard Specifications where directed by the Engineer.
817
REPAIRS TO DRAINS
817.1
Cleaning and Repair of Existing Drains
In areas of existing side drains, mitre or outfall drains where such are blocked, the Engineer shall instruct the Contractor to clean and clear the drains to free flowing condition.
The work shall consist of:
(a) Stripping and removal of any extraneous material to spoil including vegetation and roots in the drains to the satisfaction of the engineer.
(b) Spreading of any spoil to the satisfaction of the Engineer.
Shaping the drains to free flowing condition as directed by the Engineer.
Removing any broken side slabs for inverted block drains and replacing with a new removing
any broken inverted block drains and replacing with a new one well jointed.
Measurement and Payment for cleaning drains shall be by linear metre of drain cleaned measured as the product of plan area and vertical depth of extraneous material instructed to be removed. No extra payment will be made for removal of vegetation and roots.
817.2 Channels
The Engineer may instruct that the Contractor provides open channels in place of existing subdrains where the latter may be damaged or in any other place. The rates entered by the Contractor in the bills of quantities must include for removal and disposal of any subdrain material, excavation to line and level, backfilling and compaction as directed by the engineer. The channels shall be constructed of precast class 20/20 concrete of minimum 80mm thickness and lengths or widths not exceeding 1000mm. Joints shall be at least 15mm wide filled with 1:2 cement sand mortar.
817.3
Rubble fills for protection work
Quarry waste or similar approved material shall be used to back fill scoured and eroded side, outfall and cut-off drains. The material shall be compacted to form a flat or curved surface preparatory to stone pitching of drainage channels, existing and new scour checks as directed by the Engineer.
817.4
Stone Pitching
Stone pitching shall be constructed in accordance with clause 710 of the standard
Specification.
817.5 Gabions
Gabions shall be constructed in accordance with clause 711 of the standard Specification.
817.6
Spoil Material
The Contractor shall be responsible for removal from site of all materials excavated in the course of undertaking works in this section of the specifications, unless suitable for re-use, and deposit of the material in a spoil dump to be approved by the Engineer.
818
SCOUR CHECKS
Scour checks are to be constructed in mass concrete in accordance with clause 818 of the standard Specifications and the drawings as shall be provided.
819
CLEANING AND MAINTENANCE
819.1
Desilting of Pipe Culverts
Where instructed, Contractor shall desilt the existing pipe culverts by removing all the material from the pipe to make them clean and free flowing.
Measurement and payment shall be by the linear metres of pipes de-silted, regardless of diameter size.
SECTION 9
PASSAGE OF TRAFFIC
901
SCOPE OF THE SECTION
The Contractor shall so arrange his work to ensure the safe passage of the Traffic at all times and if necessary construct and maintain an adequate diversion for traffic complete with all the necessary road traffic signs.
The contractor shall provide to the satisfaction of the Engineer adequate warning signs, temporary restriction signs, advance warning signs, barriers, temporary bumps and any other device and personnel equipped with two way radios to ensure the safe passage of traffic through the works.
When carrying out the Works the Contractor shall have full regard for the safety of all road users.
The Contractor shall also provide sign posts and maintain to the satisfaction of the Engineer all deviations necessary to complete the works. The contractor should allow for the costs of complying with the requirements of this clause in his rates.
The contractor will be deemed to have inspected the site and satisfied himself as to the adequacy of his bid for these works and no additional payments will be made to the contractor for any expenditure on traffic control or the provision of deviations. The employer shall not be liable for inadequate prior investigations of this nature by the contractor.
903
MAINTENANCE OF EXISTING ROADS
The Contractor shall when instructed, maintain the existing project road ahead of works using compacted asphalt concrete type I in accordance with the provisions in clause 1601B 1607B of the Special Specifications or gravel material depending on the nature of the wearing course surface.
904
CONSTRUCTION OF DEVIATIONS
General
In addition to requirement of this clause, the Contractor shall when instructed construct and complete deviations to the satisfaction of the Engineer before commencing any permanent work on the existing road. Also during these works the contractor is supposed to provide a detour of adequate pipe culverts for pedestrian and traffic crossing where there is bridge works.
Subject to the approval by the Employer, the Contractor may maintain and use existing roads for deviation. Payment for this, made in accordance with clause 912 (a) (i), shall be by the Kilometre used depending on the type of road used, whether bituminous or earth/gravel. The rates shall include for the provision of materials and the works involved.
b) Geometry
The carriageway width of the deviations shall not be less than 6m wide and suitable for 2-way lorry traffic unless otherwise specified.
c) Construction
Unless otherwise instructed gravel wearing course for the deviation shall be 150mm compacted thickness complying with section 10 of the Standard Specification. The Contractor shall allow in his rate for removal of any unsuitable material before placing of gravel wearing course, as this will not be paid for separately.
In addition to provision of this clause, Contractor is required to sprinkle water at least 4 times a day at the rate of1 to 1.4 litres/M2 in regular interval to minimise the effects of dust. Latest sprinkling time shall be one hour before the sunset.
Where existing neighbouring roads are used as deviation, Contractor shall carry out repairs and maintenance in parent materials used for the existing base and surfacing of the road being used.
906
PASSAGE OF TRAFFIC THROUGH THE WORKS
The Contractor shall arrange for passage of traffic through the works during construction whenever it is not practicable to make deviations.
Any damage caused by passing traffic through the works shall be made good at the contractor's own cost.
907
SIGNS, BARRIERS AND LIGHTS
Contractor shall provide signs, barriers and lights as shown in the drawing in Book of Drawings at the locations where the traffic is being carried off the existing road to the deviation and back again to existing road. The Contractor shall provide ramps and carry out any other measures as instructed by the Engineer to safely carry traffic from the road to deviation.
Contrary to what has been specified in this clause the road signs provided shall be fully reflectorised and in conformity with clause 9.1 of the "Manual for Traffic Signs in Kenya Part II".
909
ASSISTANCE TO PUBLIC
In addition to provision of clause 909, Contractor shall maintain close liaison with the relevant authorities to clear any broken down or accident vehicles from the deviations and the main road, in order to maintain smooth and safe flow of the traffic. Further, the Contractor shall provide a traffic management plan to be approved by the Engineer before the commencement of any construction works and execute the same, to the satisfaction of the Engineer, during the entire period of project implementation. A draft traffic management plan shall be submitted with Bid.
912 MEASUREMENT AND PAYMENT
Construct Deviation
Road Deviation
The Contractor shall be paid only 50% of the rate for this when he completes deviation road to the satisfaction of the Engineer. The balance shall be paid in equal monthly instalments over the contract period, as he satisfactorily maintains the deviation (as per clause 904 and 905 above) when it is in operation.
Where existing neighbouring road has been used as deviation, payment shall be by the kilometre rate and shall include the cost of repairs and maintenance of the road carried out in parent base and subbase materials.
Deviation using Pipe Culverts
The Contractor shall be paid only 50% of the rate for this when he completes deviation to
the satisfaction of the Engineer. The balance shall be paid in equal monthly instalments over the contract period, as he satisfactorily maintains the deviation when it is in operation. The Contractor shall be paid full amount when the bridge under construction will be in use.
Maintain existing road
Asphalt Concrete or gravel for maintaining the existing road shall be measured by the cubic metre placed and compacted upon the road
Passage of traffic through the works
Payment shall be made on Lump Sum basis.
Assistance to Public
The Contractor will be deemed to have included cost of this item in other items and no separate payment shall be made.
SECTION 10
GRADING AND GRAVELLING
1001 GENERAL
Grading covers the works involved in the reinstatement of the road carriageway to the camber by removing the high points and filling up gullies, corrugations and wheel ruts to restore smooth running surface. Gravelling consists of excavation, loading, hauling, spreading, watering and compaction of gravel or softstone wearing course material on the formation of the road carriageway.
Ditch and Shoulder grading
The activity consists of cutting of a V ditch and reinstating or reforming of the shoulders of road using either Towed or Motor grader.
Carriageway grading
(i)
Light grading
This consists of trimming of the carriageway to control roughness and corrugations using
either a towed grader or a motorized grader.
(ii)
Heavy grading
This consists of scarifying the existing carriageway surface, cutting high spots and moving
materials to fill potholes, corrugations and wheel ruts and reshaping of the surface to the specified camber, using either a towed grader or a motorized grader. All loose rocks, roots, grasses shall be removed and disposed well clear off the drains.
Heavy grading will be considered if 70% of the road has potholes, corrugations and wheel ruts of over 200mm deep.
The material shall be bladed toward the center of the road starting from both edges until the specified camber is achieved.
1002 MATERIALS
Gravel shall include lateritic gravel, quartzitic gravel, calcareous gravel, decomposed rock, softstone/quarry waste material, clayey sand and crushed rock.
1003
MATERIAL REQUIREMENTS
Gravel material shall conform to the requirements given below:
GRADING REQUIREMENTS AFTER COMPACTION
Sieve
(mm)% by weight passing401002895 1002085 1001465 1001055 100535 92223 77118 620.42514 500.07510 - 40PLASTICITY INDEX REQUIREMENTS PIZoneMinMaxWET515DRY1025
BEARING STRENGTH REQUIREMENTSTraffic Commercial VPDCBRDCP Equivalent mm/BlowGreater than
152011Less than 151514CBR at 95% at MDD, Modified AASHTO and 4 days soakLower quality material (CBR 15) may be accepted if no better material can be found
NB: Wet Zone mean annual rainfall greater than 500mm
Dry Zone mean annual rainfall less than 500mm
SECTION 11 SHOULDERS TO PAVEMENT
1101 GENERAL
Shoulders shall be constructed in accordance with guidelines given in 1102 and as directed by the Engineer.
For sections where shoulders are extremely low and requires fill material before the shoulder is reconstructed, the construction of fill embankment shall be in accordance with Section 5 of this specification.
1102 MATERIAL FOR CONSTRUCTION OF SHOULDERS
The shoulders shall be 1.0m wide both sides and shall be formed of 150mm thick well compacted soft stone material and topsoiled with red coffee soil and planted with grass.
Low shoulder shall be reconstructed by cutting benches, filling and compacting approved fill material to form the formation to the shoulders.
Shoulder reconstruction shall be same in all sections including the slip roads.
1105 SURFACE TREATMENT OF SHOULDERS
The shoulders shall be planted with creeping type kikuyu grass.
1106 MEASUREMENT AND PAYMENT
Payment for shoulder construction shall be in accordance with the relevant clauses in sections
11, 12, 14, 15 and 23 of the relevant Specifications. Payment for fill material on shoulder shall
be in accordance with Section 5 of this specification.
SECTION 12
NATURAL MATERIAL SUBBASE AND BASE
1201 GENERAL
Where instructed by the Engineer, the Contractor shall undertake repairs, widening and reprocessing to the existing carriageway and shoulders in accordance with sections 12 and 14 of the Special Specifications.
Areas to be scarified and reprocessed
The contractor will scarify, add new material and reprocess sections as determined by the
Engineer.
Pavement repa rs
The Contractor will carry out repairs to base and subbase as directed by the Engineer and according to Specifications given in Sections 12 and 14 of the Standard Specifications.
Pavement widening
The Contractor shall, as directed by the Engineer, bench and compact the subgrade to 100% MDD (AASHTO T99), provide lay and compact material for subbase and base as directed by the Engineer and in accordance with Sections 5 and 12 of the Standard Specifications.
1203
MATERIAL REQUIREMENTS
Natural materials for base and subbase shall conform to the specifications given in Section 12 of the Standard Specifications for Road and Bridge Construction for cement and lime improved base and subbase.
1209
MEASUREMENT AND PAYMENT
Natural material for subbase and base shall be measured by the cubic metre placed and compacted upon the road calculated as the product of the compacted sectional area laid and the length.
1210
HAND PACKED STONE
Hand packed stone base is a layer of hand laid stone of defined size and durable in nature, laid in a manner such that when proof rolled and compacted it forms a stable and dense matrix as a road base.
a) Material for Hand Packed Stone Base
This shall consist of durable stone with nominal base dimensions of 75 mm square and minimum height of 150 mm or when compacted to give a layer of 150 mm. The stone shall be class C with the following requirements:
LAA 45 max
ACV 32 max
SSS 12 max
FI 30 max
CR 60 min.
It shall be free from foreign matter. The fines passing 0.425 mm sieve shall be NONPLASTIC
b) Laying
The stone shall be laid by hand closely together. The stone shall be carefully bedded and tightly
wedged with suitable spalls. The base of the stone shall alternate with the apex in all directions or as directed by the Engineer. The layer shall be proof rolled with a loaded scrapper or truck with a minimum axle load of 8 tonnes in the presence of the Engineer who shall approve of its stability before compaction.
c) Compaction
This shall be by a steel wheeled roller of at least five tonnes per metre width of roll. It shall
consist of four static runs or until there is no movement under the roller. There shall follow vibratory compaction until an average dry density of 85% minimum of specific gravity of stone has been achieved. No result shall be below 82% of specific gravity. The surface of the compacted layer shall then be levelled by quarry dust (0/6 mm). The dust shall have the following specifications:
The stone shall be class C
GradingSieve Size% Passing101006.390-100475-95250-70133-500.42520-330.30016-280.15010-200.0756-12
The dust shall be free from foreign matter and fines passing 0.425 mm sieve shall be NON- PLASTIC. The maximum layer shall be 40 mm or as directed by the Engineer
d) Measurement and Payment
Payment shall be by the cubic metre laid (m3). Measurement of volume shall be determined as
the product of length and compacted thickness laid. The rate quoted for this item should include the cost for laying the levelling quarry dust layer, as no extra payment shall be made for this layer.
1211 REPROCESSING EXISTING PAVEMENT LAYERS General
The existing surfacing and the base shall be reprocessed with additional material and the composite mixture shall be compacted to form the subbase layer.Before commencement of the work the Contractor shall propose plants and equipments he proposes to use for this activity.
The Contractor after approval of his proposal shall carry out test section in accordance with
Section 3 of the Standard Specifications.
The existing surfacing and base course shall be broken up to specified depth and reprocessed in place, where required. The underlying layers shall not be damaged, and material from one layer may normally not be mixed with that of another layer. Where unauthorized mixing occurs or where the material is contaminated in any way by the actions of the Contractor, and the contaminated material does not meet the specified requirements of for the particular layer, he shall remove such material and replace it with other approved material, all at his own expense.
Any mixture composition of the new layer must not contain more than 30% of the bituminous material by volume. The mixture must not contain pieces of bound bituminous material larger than 37.5mm, and any such material shall be removed at the Contractors cost.
The requirements for imported material used in the respective pavement layers shall comply with the limitations, norms, sizes and strengths specified in the Standard Specifications clause 1203(b) and (d) and shall be worked as per Section 14 of the Standard Specification.
Material reworked in-situ or that obtained from existing pavement is not expected to comply with the material requirements but the reworking should achieve the specified requirements. Where the thickness of any existing pavement layer requires to be supplemented within reprocessing and the thickness of the additional material after compaction will be less than
100mm, the existing layer shall be scarified to a depth that will give a layer thickness of at
least 100mm after compacting the loosened existing and the additional material.
Controlling the Reworked Depth
The Contractor shall submit a proven method to method to control the depth of excavation, or layer to be reworked, to the Engineer for approval. The Engineer may order a trial section to be reprocessed before any major length of the road is rehabilitated.
Excavations
Excavations in the pavement shall be kept dry. In the event of water penetrating the underlying layers, construction of the consecutive layers shall be postponed until the underlying layers are dry enough to accommodate the construction plant without deforming or otherwise showing distress.
Step construction shall be carried out per layer at the joint when excavating, both longitudinally (if appropriate) and perpendicular to the direction of travel. The step width shall be 500mm perpendicular to the direction of travel, and 150mm long longitudinally, unless otherwise instructed by the Engineer.
Special care shall be taken when compacting the new material at the joint, ensuring that the
specified density is achieved.
Measurement and Payment
(a Item: In-situ reprocessing of existing pavement layers as subbase compacted to specified density (95% MDD AASHTO T180) and thickness.
Unit: M3
The tendered rate shall include full compensation for breaking up the existing pavement layer to specified depth, breaking down and preparing the material and the spreading and mixing in of any additional material
Item: The addition of extra gravel to subbase. Unit: M3
The tendered rate shall include full compensation for procuring and addition of the material to the in-situ scarified layers and the transportation of the material over unlimited free-haul distance. The tendered rates will also include full compensation for prospecting for materials and any payments necessary to acquire the specified quality material.
Excavation of existing bituminous pavement materials including unlimited free-haul.
Unit: M3
The tendered rates shall include full compensation for excavating the existing bituminous material from the pavement layers and for loading, transporting the material for unlimited free-haul, off-loading and disposing of the materials as specified.
Excavation of the existing pavement
Unit: M3
The tendered rate shall include full compensation for excavating the existing material from the pavement layers and for loading, transporting the material for unlimited free-haul distance, off-loading and disposing of the material as specified.
Payment will only be made for breaking up and excavating existing pavement layers to the specified depth if the material is to be removed to spoil.
SECTION 14: CEMENT TREATED MATERIALS
1401. Cement Treatment
Cement for stabilization will be CEM 1 Portland cement conforming to KS 1262. The cement content of the stabilized material shall be as indicated by the Engineer and will normally be about 4%. The
Engineer shall exercise his discretion to any variation in the rate of application of the cement, which he may see fit, to order from time to time.
Moisture Content
The moisture content of the stabilized material shall be as directed by the Engineer but nevertheless within the range of 85% to 100% of the optimum Moisture Content (AASHTO T.180)
Mixing and Placing
The material to be stabilized and the cement shall be mixed by an approved mixing plant, which will either be a mix-in-place pulvimixer or a stationary mixing plant for material to be used for pavement reconstruction, widening and shoulders.
1403. Lime Improvement
Lime improvement shall be carried out in accordance with Section 14 of the Standard Specification.
1409. Protection & Curing
Protection and curing shall be carried out in accordance with the provisions of Clause 1409(i) of the Standard Specification but provision shall be made to wet the surface from time to time as directed by the Engineer.
1410. Traffic
The requirements of clause 1410 of the Standard Specification will not apply to improved natural material utilized for patching and repair works but will apply in case reprocessing of reconstruction and widening of the existing base and shoulders.
SECTION 15
BITUMINOUS SURFACE TREATMENTS
1501B
PREPARATION OF SURFACE
In addition to requirements of Clause 1503B of the Standard Specifications, the contractor shall prepare and Repair Cracks, Edges, Potholes and Other Failures as follows: -
a) Cracks 3.0mm or less in width
The entire crack area shall be cleaned by brushing with a wire brush and then blowing with a compressed air jet and the crack sealed with 80/100 cutback bitumen using a pouring pot or pressure lance and hand squeegee. The surface shall then de dusted with sand or crushed dust.
b) Cracks greater than 3.0mm in width
Before these cracks are filled a steel wire brush or router shall be used to clean them and then a compressed air jet shall be used to clean and remove any foreign or lose material in the crack until the entire crack area is clean.
When the crack and surrounding area have been thoroughly cleaned, dry sand shall be forced into the crack until it is sealed in the manner specified for cracks less than 3.0mm width.
c) Potholes, edges and other repair areas
Where instructed, the Contractor shall prepare areas for the repair of potholes, road edges and other repair areas by excavating off unsuitable or failed material and debris, trimming off excavated edges, cleaning and compacting the resulting surfaces and applying MC 30 or MC
70 cut-back bitumen prime coat at a rate of 0.8-1.2 litres/m2, all as directed by the Engineer.
Measurement and payment shall be made under the relevant item of Bill No 15. Where the surface repair on potholes and edges are to be carried out, Asphalt Concrete Type I (0/14gradation) shall be used. Bituminous material for repair of failures and other repair areas shall be paid for under the relevant item of Bill No 16
PART B
PRIME COAT
1502B
MATERIALS FOR PRIME COAT AND TACK COAT.
For prime coat, the binder shall be a medium-curing cutback MC 70 unless otherwise directed by the Engineer.
The rate of spray of bituminous prime coat refers to the gross volume of the cutback bitumen, that is to say the volume of the bitumen plus dilatants.
Prime coat shall be applied to gravel areas that are to receive bituminous mixes as directed by the Engineer.
The tack coat shall consist of bitumen emulsion KI-60 unless otherwise directed by the
Engineer.
The rates of spray of the binder shall be as instructed by the Engineer and shall generally be within the range 0.8-1.2 litres/square metre.
1511C
MEASUREMENT AND PAYMENT
Seal coat
Seal coats shall be measured by the litre, for each type of bituminous binder for each seal coat, calculated as the product of the area in square metres sprayed and the rate of application in litres/square metres, corrected to 15.6 o C
SECTION 16 - BITUMINOUS MIX BASES, BINDER COURSES AND WEARING COURSES
This section covers different types of bituminous mixes for base and surface (wearing and binder courses) and is divided into the following parts: -
Part A General
Part B Asphalt Concrete for carriageway
PART A GENERAL
1601A SCOPE OF PART A
Part A comprises all the general requirements for bituminous mixes, which apply to Part B as well.
1602A REQUIREMENTS FROM OTHER SECTIONS
The following sections of this Specification apply to Part B of this section and shall be read in conjunction therewith:-
Section 2 Materials and Testing of Materials
Section 3 Setting Out and Tolerances
Section 6 Quarries, Borrow Pits, Stockpile and Spoil Areas
Section 15 Bituminous Surface Treatments and Surface Dressing
1603A CONSTRUCTION PLANT
(a) General
The Contractor shall submit to the Engineer in accordance with Section 1 of its Specification, full details of the construction plant he proposes to use and the procedures he proposes to adopt for carrying out the permanent Works.
The Engineer shall have access at all times to construction plant for the purposes of inspection. The Contractor shall carry out regular calibration checks in the presence of the Engineer and shall correct forthwith any faults that are found.
All construction plant used in the mixing, laying and compacting of bituminous mixes shall be of adequate rated capacity, in good working condition, and shall be acceptable to the Engineer. Obsolete or worn-out plant will not be allowed on the work.
(b) Mixing Plant
Bituminous materials shall be mixed in a plant complying with ASTM Designation D995 and shall be located on the Site unless otherwise agreed by the Engineer. It shall be equipped with at least three bins for the storage of heated aggregates and a separate bin for filler. All bins shall be covered to prevent the ingress of moisture.
The plant may be either the batch-mix type or the continuous-mix type and shall be capable of regulating the composition of the mixture to within the tolerances specified in Clause 1614A of this Specification.
The bitumen tank shall be capable of maintaining its contents at the specified temperature within a tolerance of 50C and a fixed thermometer easily read from outside the tank. Any bitumen that has been heated above 1800C or has suffered carbonisation from prolonged heating shall be removed from the plant and disposed of.
(c) Laying Plant
Bituminous materials shall be laid by a self-propelled spreader finisher equipped with a hopper, delivery augers and a heated adjustable vibrating screed. It shall be capable of laying bituminous materials with no segregation, dragging, burning or other defects and within the specified level and surface regularity tolerance. Delivery augers shall terminate not more than
200mm from the edge plates.
(d) Compaction Plant
The Contractor shall provide sufficient rollers of adequate size and weight to achieve the specified compaction. Prior to commencing the laying of bituminous mixes in the permanent Works the Contractor shall carry out site trials in accordance with Section 2 of this Specification to demonstrate the adequacy of his plant and to determine the optimum method of use and sequence of operation of the rollers.
It is important to achieve as high a density as possible at the time of construction and it is expected that vibrating rollers will be required to produce the best results. However, it is essential that thorough pre-construction trials are carried out to ensure that:-
(a) The roller is set up to have the optimum amplitude and frequency of vibration for the particular material being laid
(b) That the roller does not cause breakdown of the aggregate particles.
(c) That the optimum compaction temperatures are established which allow compaction without causing ripple effects or other distortions of the surfacing.
1604A
PREPARATION OF SURFACE
Immediately before placing the bituminous mix in the pavement, the existing surface shall be cleaned of all material and foreign matter with mechanical brooms or by other approved methods. The debris shall be deposited well clear of the surface to be covered.
Any defect of the surface shall be made good and no bituminous mix shall be laid until the
Engineer has approved the surface.
A tack coat shall be applied in accordance with Section 15 of this Specification. If the Engineer
considers a tack coat is required prior to laying the bituminous mix or between layers of the bituminous mix, due solely to the
Contractor's method of working, then such tack coat shall be at the Contractor's expense.
1605A
DESIGN AND WORKING MIXES
At least two months prior to commencing work using a bituminous mix, the Contractor shall, having demonstrated that he can produce aggregates meeting the grading requirements of the Specification, submit samples of each constituent of the mix to the Engineer. The Engineer will then carry out laboratory tests in order to decide upon the proportion of each constituent of the initial design mix or mixes to be used for site trials to be carried out in accordance with Clause 1606A of this Specification.
Should the Engineer conclude from the site trials that the mix proportion or aggregate grading are to be changed, the Contractor shall submit further samples of the constituents and carry out further site trials all as directed by the Engineer.
The Engineer may instruct the alteration of the composition of the -75 micron fraction of the aggregates by the addition or substitution of mineral filler. The Engineer may also instruct the alteration of all or part of the -6.3mm fraction of the aggregates by the addition or substitution of natural sand.
The Contractor shall make the necessary adjustments to his plant to enable the revised mix to be produced.
Following laboratory and site trials the Engineer will determine the proportions of the working mix and the Contractor shall maintain this composition within the tolerances given in Clause
1614A.
Should any changes occur in the nature or source of the constituent materials, the Contractor shall advise the Engineer accordingly. The procedure set out above shall be followed in establishing the new mix design.
1606A
SITE TRIALS
Full scale laying and compaction site trials shall be carried out by the Contractor on all asphalt pavement materials proposed for the Works using the construction plant and methods proposed by the Contractor for constructing the Works. The trials shall be carried out with the agreement, and in the presence of the Engineer, at a location approved by the Engineer.
The trials shall be carried out to: -
Test materials, designed in the laboratory, so that a workable mix that satisfies the specification requirements can be selected.
To enable the Contractor to demonstrate the suitability of his mixing and compaction equipment to provide and compact the material to the specified density and to confirm that the other specified requirements of the completed asphalt pavement layer can be achieved.
Each trial area shall be at least 100 metres long and to the full construction width and depth for the material. It may form part of the Works provided it complies with this Specification. Any areas that do not comply with this Specification shall be removed.
The Contractor shall allow in his programme for conducting site trials and for carrying out the appropriate tests on them. The trial on any pavement layer shall be undertaken at least 21 days ahead of the Contractor proposing to commence full-scale work on that layer.
The Contractor shall compact each section of trial over the range of compactive effort the Contractor is proposing and the following data shall be recorded for each level of compactive effort at each site trial: -
The composition and grading of the material including the bitumen content and type and grade of bitumen used.
The moisture content of aggregate in the asphalt plant hot bins.
The temperature of the bitumen and aggregate immediately prior to entering the mixer, the temperature of the mix on discharge from the mixer and the temperature of the mix on commencement of laying, on commencement of compaction and on completion of compaction. The temperature of the mixture is to be measured in accordance with BS 598, Part 3, Appendix A.
The type, size, mass, width of roll, number of wheels, wheel load, tyre pressures, frequency of vibration and the number of passes of the compaction equipment, as appropriate for the type of roller.
The target voids and other target properties of the mix together with the results of the laboratory tests on the mix.
The density and voids achieved.
The compacted thickness of the layer.
Any other relevant information as directed by the Engineer.
At least eight sets of tests shall be made by the Contractor and the Engineer on each 100 metres of trial for each level of compactive effort and provided all eight sets of results over
the range of compactive effort proposed by the Contractor meet the specified requirements for
the material then the site trial shall be deemed successful. The above data recorded in the trial shall become the agreed basis on which the particular material shall be provided and processed to achieve the specified requirements.
1607A
MIXING OF AGGREGATES AND BITUMEN
The bitumen shall be heated so that it can be distributed uniformly and care shall be taken not to overheat it. The temperature shall never exceed 1700 C for 80/100-penetration grade bitumen.
The aggregates shall be dried and heated so that they are mixed at the following temperatures:
-
125-1650C when 80/100 bitumen is used
The dried aggregates shall be combined in the mixer in the amount of each fraction instructed by the Engineer and the bitumen shall then be introduced into the mixer in the amount
specified. The materials shall then be mixed until a complete and uniform coating of the aggregate is obtained.
The mixing time shall be the shortest required to obtain a uniform mix and thorough coating. The wet mixing time shall be determined by the Contractor and agreed by the Engineer for each plant and for each type of aggregate used. It shall normally not exceed 60 seconds.
1608A TRANSPORTING THE MIXTURE
The bituminous mix shall be kept free of contamination and segregation during transportation. Each load shall be covered with canvas or similar covering to protect it from the weather and dust.
1609A LAYING THE MIXTURE
Immediately after the surface has been prepared and approved, the mixture shall be spread to line and level by the laying plant without segregation and dragging.
The mixture shall be placed in widths of one traffic lane at a time, unless otherwise agreed by the Engineer. The compacted thickness of any layer shall be at least 2.5 times the maximum size of the aggregate for wearing course and at least 2 times for binder course. The minimum thickness shall be 25mm.
Only on areas where irregularities or unavoidable obstacles make the use of mechanical laying impracticable, may the mixture be spread and compacted by hand.
1610A COMPACTION
Immediately after the bituminous mixture has been spread, it shall be thoroughly and uniformly compacted by rolling.
The layer shall be rolled when the mixture is in such a condition that rolling does not cause undue displacement or shoving.
The number, weight and type of rollers furnished shall be sufficient to obtain the required compaction while the mixture is in a workable condition. The sequence of rolling operations shall be as agreed with the Engineer and proved during site trials. Initial rolling
with steel tandem or three-wheeled roller shall follow the laying plant as closely as possible. The rollers shall be operated with the drive roll nearest the laying plant, at a slow and uniform speed (not exceeding 5 Km/Hr).
Rolling shall normally commence from the outer edge and proceed longitudinally parallel to the centreline, each trip overlapping one half of the roller width. On super elevated curves, rolling shall begin at the low side and progress to the high side. Where laying is carried out in lanes care must be taken to prevent water entrapment.
Intermediate rolling with a pneumatic-tyred or vibratory roller shall follow immediately. Final rolling with a steel-wheeled roller shall be used to eliminate marks from previous rolling.
To prevent adhesion of the mixture to the rollers, the wheels shall be kept lightly moistened with water.
In areas too small for the roller, a vibrating plate compactor or a hand tamper shall be used to achieve the specified compaction.
1611A FINISHING,JOINTS AND EDGES
Any mixture that becomes loose and broken, mixed with dirt or foreign matter or is in any way defective, shall be removed and replaced with fresh hot mixture, which shall be compacted to conform to the surrounding area.
Spreading of the mixture shall be as continuous as possible. Transverse joints shall be formed by cutting neatly in a straight line across the previous run to expose the full depth of the course. The vertical face so formed shall be painted lightly with hot 80/100 penetration grade bitumen just before the additional mixture is placed against it.
Longitudinal joints shall be rolled directly behind the paving operation. The first lane shall be placed true to line and level and have an approximately vertical face. The mixture placed in the abutting lane shall then be tightly crowded against the face of the previously placed lane. The paver shall be positioned to spread material overlapping the joint face by 20-30mm. Before rolling, the excess mixture shall be raked off and discarded.
When the abutting lane is not placed in the same day, or the joint is destroyed by traffic, the
edge of the lane shall be cut back as necessary, trimmed to line and painted lightly with hot
80/100 penetration grade bitumen just before the abutting lane is placed.
Any fresh mixture spread accidentally on the existing work at a joint shall be carefully removed by brooming it back on to uncompacted work, so as to avoid formation of irregularities at the joint. The finish at joints shall comply with the surface requirements and shall present the same uniformity of finish, texture and density as other sections of the work.
The edges of the course shall be rolled concurrently with or immediately after the longitudinal joint. In rolling the edges, roller wheels shall extend 50 to 100mm beyond the edge.
1612A SAMPLING AND TESTING OF BITUMINOUS MIXTURES
The sampling of bituminous mixtures shall be carried out in accordance with AASHTO T168 (ASTM Designation D979).
1613AQUALITY CONTROL TESTING
During mixing and laying of bituminous mixtures, control tests on the constituents and on the mixed material shall be carried out in accordance with Clause 1612A and Section 2 of this Specification.
If the results of any tests show that any of the constituent materials fail to comply with this Specification, the Contractor shall carry out whatever changes may be necessary to the materials or the source of supply to ensure compliance.
If the results of more than one test in ten on the mixed material show that the material fails to comply with this Specification, laying shall forthwith cease until the reason for the failure has been found and corrected. The Contractor shall remove any faulty material laid and replace it with material complying with this Specification all at his own expense.
1614A TOLERANCES
Surfacing courses and base shall be constructed within the geometric tolerances specified in
Section 3 of this Specification.
The Contractor shall maintain the composition of the mixture as determined from the laboratory and site trials within the following tolerances, per single test: -
Bitumen Content 0.3% (by total weight of total mix) Passing 10mm sieve 6% (by total weight of dry aggregate
and larger sieves including mineral filler)
Passing sieves between 4% (by total weight of dry aggregate
10mm and 1.0mm sieves including mineral filler)
Passing sieves between 3% (by total weight of dry aggregate
1.0mm and 0.075mm sieve including mineral filler)
Passing 0.075mm sieve 2% (by total weight of dry aggregate including mineral filler)
The average amount of bitumen in any length of any layer, calculated as the product of the bitumen contents obtained from single tests and the weight of mixture represented by each test, shall not be less than the amount ordered.
The average amount of bitumen for each day's production calculated from the checked weights of mixes shall not be less than the amount ordered.
The average amount of bitumen in any length of any layer, calculated as the product of the
bitumen contents obtained from single tests and the weight of mixture represented by each test, shall not be less than the amount ordered.
The average amount of bitumen for each day's production calculated from the checked weights of mixes shall not be less than the amount ordered.
The final average overall width of the upper surface of a bituminous mix layer measured at six equidistant points over a length of 100m shall be at least equal to the width specified. At no point shall the distance between the centreline of the road and the edge of the upper surface of a bituminous mix layer be narrower than that specified by more than 13mm.
1615A
MEASUREMENT AND PAYMENT
No separate measurement and payment shall be made for complying with the requirements of Clauses 1601A to 1614A inclusive and the Contractor shall be deemed to have allowed in his rates in Parts B and C of Section 16 of this Specification for the costs of complying with the requirements of Part A of Section 16 of this Specification
PART B
ASPHALT CONCRETE FOR SURFACING
1601B DEFINITION
Asphalt concrete means a thoroughly controlled, hot-mixed, hot-laid, plant mixture of well- graded dried aggregate and penetration grade bitumen, which, when compacted forms a dense material.
A distinction is drawn between asphalt concrete Type I (High Stability) and asphalt concrete
Type II (Flexible). The asphalt concrete type to be used will be Type I.
1602B
MATERIALS FOR ASPHALT CONCRETE TYPE 1
a)
Type of bituminous material
The type of material to be used on severe sites will be of the continuously graded type similar to Asphaltic Concrete or Close Graded Macadam. It is essential that these materials are sealed with a single or double surface dressing or a Cape seal.
b) Penetration Grade Bitumen
Bitumen shall be 80/100 penetration grade since material is being laid at an altitude of more than 2,500m.
c) Aggregate
Coarse aggregate (retained on a 6.3mm sieve) shall consist of crushed stone free from clay, silt, organic matter and other deleterious substances. The aggregate class will be specified in the Special Specification and it shall comply with the requirements given in Table 16B-1(b). The grading for 0/20 mm for carriageway and 0/14mm for shoulders for binder course is as specified below:
Sieve size0/200/1428100-2090-1001001475-9590-1001060-8270-906.347-6852-75437-5740-60225-4330-45118-3220-350.42511-2212-240.3009-1710-200.1505-126-140.0753-74-8
TABLE 16B-1(b) - REQUIREMENTS FOR COARSE AGGREGATE
Coarse Aggregate
(Retained on a 6.3mm Sieve)
Test
Maximum Value
LAA ACV SSS FI
30
25
12
25
Fine aggregate (passing a 6.3mm sieve) shall be free from clay, silt, organic and other deleterious matter and shall be non-plastic. Unless otherwise specified in the Special Specification it shall consist of entirely crushed rock produced from stone having a Los Angeles Abrasion of not more than 40. The Sand Equivalent of the fine aggregate shall not be less than
40 and the SSS not more than 12.
Mineral Filler
Mineral Filler shall consist of ordinary Portland Cement
1603B GRADING REQUIREMENTS
The grading of the mixture of coarse and fine aggregate shall be within and approximately parallel to the grading envelopes given in Table 16B-1(b), for 0/14mm as specified for binder course, as described below.
GRADING REQUIREMENTS
To arrive at a suitable design it is necessary to investigate a number of gradings so that a workable mix, which also retains a minimum of 3 % voids at refusal density, is identified.
The largest particle size used should not be more than 25mm so that the requirements of the
Marshall test method can be complied with.
Although the complete range of nominal maximum particle sizes is shown in the Tables, the total thickness of material laid should not be more than 75mm.
1604B REQUIREMENTS FOR ASPHALT CONCRETE TYPE 1
The mixture shall comply with the requirements given in Table 16B-2 as specified in the Specification. In addition, minimum Marshall Stability for 2 x 75 blows shall be 9 kN and maximum 18 kN and at compaction to refusal shall have 3% VIM.
The proportion, by weight of total mixture, of bitumen shall be 5.0 6.5 % for 0/14 mm and
4.5 6.5 % for 0/20mm. This shall be termed the nominal binder content. The binder
content of the working mix will be instructed by the Engineer following laboratory and site trials.
In order to determine the suitability of a coarse aggregate source a Marshall test programme shall be carried out. It will be advantageous to use a crushed rock which is known from past experience to give good results in this test procedure. A grading conforming to the Type I Binder Course detailed in Table 16B-1(a) 0/20 of this Specification should be tested (but with
100% passing the 25mm sieve) and it shall meet the requirements of Table 16B-2 of this
Specification.
Having established the suitability of the aggregate source several grading shall be tested in the laboratory, including that used for the Marshall test, to establish relationships between bitumen content and VIM at refusal density. For each mix, samples will be made up to a range of bitumen contents and compacted to refusal using a gyratory compactor and a vibratory hammer in accordance with the procedure described in BS 598 (Part 104 : 1989), with one revision.
It should first be confirmed that compaction on one face of the sample gives the same refusal density as when the same compaction cycle is applied to both faces of the same sample. The procedure, which gives the highest density, must be used.
From the bitumen content-VIM relationship it will be possible to identify a bitumen content which corresponds to a VIM of 3 - 7%. If it is considered that the workability of the mix may be difficult then compaction trials should be undertaken. It is advisable to establish two or more gradings for compaction trials.
The mixes identified for compaction trials should be manufactured to the laboratory design bitumen content and to two other bitumen contents of +0.5% and +1% additional bitumen. Cores will be cut to determine the density of the compacted material, having completed this the core will then be reheated to 145+/-5EðC in the appropriate mould and compacted to refusal
in the vibrating hammer test. To be acceptable the cores cut from the compaction trial must
have a density equivalent to at least 95% of refusal density.
The compaction trials will identify a workable mix which can be made to a bitumen content which gives 3% VIM at refusal density.
1605B MIXING AND LAYING HEAVY DUTY ASPHALT
The temperature of the bitumen and aggregates when mixed shall be 110+/-3EðC above the softening point (R&B) of the bitumen.
Compaction should commence as soon as the mix can support the roller without undue displacement of material and completed before the temperature of the mix falls below 900C. The minimum thickness of individual layers should be as follows:-
a)For the 37.5mm mix65mmb)For the 25.0mm mix60mmc)For the 19.0mm mix50mmd)
1606BFor the 12.5mm mix
COMPACTION40mm
Rolling shall be continued until the voids measured in the completed layer are in accordance with the requirement for a minimum density of 98% of Marshall optimum, or, a minimum mean value of 95% of refusal density (no value less than 93%) as appropriate.
1607B MEASUREMENT AND PAYMENT
a) Item : Asphalt Concrete
Unit : m3 of Asphalt Concrete Used
Asphalt concrete shall be measured by the cubic metre compacted on the road calculated as the product of the length instructed to be laid an the compacted cross-sectional area shown on the Drawings or instructed by the Engineer.
The rate for asphalt concrete shall include for the cost of providing, transporting, laying and compacting the mix with the nominal binder content and complying with the requirements of Parts A and B of Section 16 of this Specification.
SECTION 17
CONCRETE WORKS
1703 MATERIALS FOR CONCRETE
This work shall consist of placing selected approved material of 250mm minimum diameter on the foundation put after excavation to receive levelling concrete in accordance with these specifications and in conformity with the lines, grades and cross sections shown on the Drawings as directed by the Engineer.
(a) Materials
Selected rock: The selected rock builders to be placed for this work shall be hard, sound, durable quarry stones as approved by the Engineer. Samples of the stone to be used shall be submitted to and approved by the Engineer before any stone is placed.
The maximum size of the stone boulders shall be 300mm.
(b) Construction Method
After completion of the structural excavation the surface of the loose soil shall be levelled and compacted. Then the stone of the above sizes shall be placed in one layer of 250mm over the compacted bed where the bottom slab will rest. Coarse sand shall be spread to fill up the voids in the stone boulders, and compaction with vibratory compactors should be performed to make this layer dense whereon a concrete of levelling course shall be placed.
(c) Measurement and payment
Measurement for the bedding materials shall be made in cubic metres for the completed and accepted work, measured from the dimension shown on the Drawings, unless otherwise directed by the Engineer.
Payment for the bedding Materials for Levelling Concrete Works shall be full compensation for furnishing and placing all materials, all labour equipment, tools and all other items necessary for proper completion of the work in accordance with the Drawings and specifications and as directed by the Engineer.
1703(A)LEVELLING CONCRETE (CLASS 15/20) FOR BOTTOM SLAB INCLUSIVE OF COST OF FORM WORKS
This work shall consist of placing and levelling lean concrete class 15/20 over the prepared bed of stone boulders in the foundation for bottom slab and wingwalls in accordance with these specifications and which conformity with the lines, grades, thickness and typical cross- sections shown on the drawings unless otherwise directed by the Engineer.
(a) Materials for Levelling Concrete
Requirement for the concrete class 15/20 is specified as follows:- Design compressive strength (28) days : 15N/mm2
Maximum size of coarse aggregate : 20mm Maximum cement content : 300 kg/m3. Maximum water/cement ration of 50% with slump of 80mm.
(b) Construction Method
The bed of stone boulders upon which the levelling concrete will be placed shall be smooth, compacted and true to the grades and cross-section shall be set to the required lines and grades.
(c)Measurement and payment
Measurement for levelling concrete (class 15/20) shall be made in cubic metres completed and accepted levelling concrete work measured in place which is done in accordance with the Drawings and the Specifications.
Payment for this work shall be the full compensation for furnishing and placing all materials, labour, equipment and tools, and other incidentals to Specifications and as directed by the Engineer.
Pay item No. 17/02 Levelling Concrete Works (Class 15/20) for Box Culvert and wingwalls inclusive of Cost of Form works.
1703(C)FORMWORK FOR CULVERT WALLS
This work shall consist of all temporary moulds for forming the concrete for culvert walls and slabs together with all temporary construction required for their support. Unless otherwise directed by the Engineer all formworks shall be removed on completion of the walls and slabs.
(a) Materials
Forms shall be made of wood or metal and shall conform to the shape, lines and dimensions shown on the Drawings.
All timber shall be free from holes, loose material, knots, cracks, splits and warps or other defects affecting the strength or appearance of the finished structure.
Release Agents Release agents shall be either neat oils containing a surface activating agent, cream emulsions, or chemical agents to be approved by the Engineer.
(b) Construction Method
(i) Formworks
Formworks shall be designed to carry the maximum loads that may be imposed, and so be
rigidly constructed as to prevent deformation due to load, drying and wetting, vibration and other causes. After forms have been set in correct location, they shall be inspected and approved by the Engineer before the concrete is placed.
If requested, the contractor shall submit to the Engineer working drawings of the forms and also, if requested, calculations to certify the rigidity of the forms.
1703(D) CONCRETE WORKS (CLASS 20/20) OF CULVERT WALLS AND SLABS
This work shall consist of furnishing, mixing, delivering and placing of the concrete for the construction of culvert walls and slabs, in accordance with these Specifications and in conformity with the requirements shown on the Drawings.
Concrete class 20/20 shall be used for Culvert walls and slabs.
(a) Concrete Materials
(i) Cement: Cement shall be of Portland type and shall conform to the requirements of BS 12 or equivalent.
The contractor shall select only one type or brand of cement or others. Changing of type or brand of cement will not be permitted without a new mix design approved by the Engineer. All cement is subject to the Engineers approval; however, approval of cement by the Engineer shall not relieve the Contractor of the responsibility to furnish concrete of the specified compressive strength.
Conveyance of cement by jute bags shall not be permitted. Storage in the Contractors silo or storehouse shall not exceed more than two (2) months, and age of cement after manufacture at mill shall not exceed more than four (4) months. The Contractor shall submit to the Engineer for his approval the result of quality certificate prepared by the manufacturer.
Whenever it is found out that cement have been stored too long, moist, or caked, the cement shall be rejected and removed from the project.
(b) Aggregates
Fine and coarse aggregates must be clean, hard, strong and durable, and free from absorbed chemicals, clay coating, or materials in amounts that could affect hydration, bonding, strength and durability of concrete.
Grading of aggregates shall conform to the following requirements:
Grading of Fine Aggregates
Sieve SizePercentage by Weight Passing10 mm mm
2.5 mm
1.2 mm
0.6 mm
0.3 mm
0.15 mm100
89-100
60-100
30-100
15- 54
5- 40
0 15
Grading of Coarse Aggregates
Size of Coarse Aggregat
eAmounts finer than each standard sieve percentage by weight40 30 25 20 15 10 5
2.5100 - - 90-100 - 30-69 0-10
-
Other requirements for aggregates are as follows:
(iii) Fine Aggregates
Fitness Modulus, AASHTO M-6 : 2.3 3.1
Sodium Sulphate Soundness, AASHTO T104 : Max. 10% loss
Content of Friable Particles AASHTO 112 : Max 1% by weight
Sand Equivalent, AASHTO T176 : Min. 75
(iv) Coarse Aggregate
Abrasion, AASGTO T96 : Max. 405 loss
Soft Fragment and shale, AASHTO M80 : Max. 5% by weight
Thin and elongated Pieces, AASHTO M80 : Max. 15%
(v) Water
All sources of water to be used with cement shall be approved by the Engineer. Water shall be free from injurious quantities of oil, alkali, vegetable matter and salt as determined by the Engineer.
(vi) Admixture
Only admixture, which have been tested and approved in the site laboratory through trial mixing for design proportion shall be used. Before selection of admixture, the Contractor shall submit to the Engineer the specific information or guarantees prepared by the admixture supplier.
The contractor shall not exclude the admixture from concrete proportions.
Concrete class 20/20
Concrete class 20/20 shall be used for culvert walls and slabs. The requirements of Concrete class 20/20 are provided as follows unless otherwise the Engineer will designate any alteration.
Design compressive strength (28 days) : 20N/mm2
Maximum size of coarse aggregates : 20mm
Maximum water/cement ratio of 45% with slump of 80mm
(d) Proportioning Concrete
The Contractor shall consult with the Engineer as to mix proportions at least thirty (30) days prior to beginning the concrete work. The actual mix proportions of cement, aggregates, water and admixture shall be determined by the Contractor under supervision of the Engineer in the site laboratory.
The Contractor shall prepare the design proportions which has 120% of the strength requirement specified for the designated class of concrete.
No class of concrete shall be prepared or placed until its job-mix proportions have been approved by the Engineer.
(e) Concrete Work
Batching
Batching shall be done by weight with accuracy of:
Cement : ½ percent
Aggregate : ½ percent
Water and Admixture : 1 percent.
Equipment should be capable of measuring quantities within these tolerances for the smartest batch regularly used, as well as for larger batches.
The accuracy of batching equipment should be checked every month in the presence of the
Engineer and adjusted when necessary.
Mixing and delivery
Slump of mixed concrete shall be checked and approved at an accuracy of +25mm against designated slump in these specifications.
Concrete in hot weather
No concrete shall be placed when the ambient air temperature is expected to exceed thirty three degrees celsius (330c) during placement operations).
Concreting at night
No concrete shall be mixed, placed or finished when natural light is insufficient, unless an adequate approved artificial lighting system is operated; such night work is subject to approval by the engineer.
Placing
In preparation of the placing of concrete, the interior space of forms shall be cleaned and approved by the engineer prior to placing concrete. All temporary members except tie bars to support forms shall be removed entirely from the forms and not buried in the concrete. The use of open and vertical chute shall not be permitted unless otherwise directed by the engineer.
The Contractor shall provide a sufficient number of vibrators to properly compact each batch immediately after it is placed in the forms.
(f) Measurement and Payment
Measurements for the Concrete Works Class 20/20 of culvert walls and slabs shall be made in cubic metres for the walls and slabs actually constructed, measured from their dimensions shown on the Drawings. Payment for the Concrete Works (Class 20/20) of culvert walls and slabs shall be the full compensation for furnishing all materials of the concrete mixing, delivering, placing and curing the concrete, equipment and tools, labour and other incidental necessary for the completion of the work in accordance with the Drawings and these Specifications and as directed by the Engineer.
SECTION 20
ROAD FURNITURE
2001
ROAD RESERVE BOUNDARY POSTS
Road reserve boundary posts shall be provided as directed by the Engineer and in compliance with Standard Specification clause 2001. They shall be placed at 50m. intervals along the boundary of the road reserve.
2003
EDGE MARKER POST
Edge marker post shall be provided as directed by the Engineer and in compliance with
Standard Specification clause clause 2003
2004
PERMANENT ROAD SIGNS
Permanent Road Signs shall be provided as directed by the Engineer and in compliance with the requirements of the "Manual for Traffic Signs in Kenya" Part II and standard Specification clause 2004.
2004B
EXISTING ROAD SIGNS
Where directed by the Engineer, the Contractor shall take down road signs including all posts, nuts, bolts and fittings, and remove and dispose of the concrete foundation and backfill the post holes. The signs shall be stored as directed by the Engineer.
Measurement and payment for taking down road signs shall be made by the number of signs of any type and size taken down, cleaned and stored as directed.
2005
ROAD MARKING
Paint for road marking shall be internally reflectorised hot applied thermoplastic material in accordance with Clause 219 of the Standard Specification.
The rates inserted in the Bills of Quantities for road marking shall include for prior application of approved tack coat.
2005A
RAISED PAVEMENT MARKERS ROAD STUDS MATERIAL
Road studs are moulded of acrylonitrile butadiene styrene (ABS) conforming to ASTM Specification D1788 68, class 5-2-2 shell filled with inert, thermosetting compound and filler. The lens portion of the marker of the marker is of optical menthly methacrylic.
CONSTRUCTION
The road studs shall be constructed of high impact ABS containing a multi-biconvex glass lens
reflector system. It shall be of monolithic construction, and not less than 98.5. m2. The height of the marker shall not exceed 17mm and the underside shall contain a non-honeycomb base (flat).
Requirement
The markers shall conform to the following requirements
Colour
Shall be white, yellow or red as specified and the Retro reflectance values should conform to the testing procedures of ASTME 809.
Impact resisitance
The market shall not crack or break when tested using a 1000-gram weight from a height of 1 metre. (ASTM D 2444) or BS 3900 Part E3.
Resistance to Water Penetration
Shall not have water penetration behind the lens after submerged in a water bath at 70 + 50 oF for 10 minutes. And it should still meet the reflectance Requirement. BS 998.
Heat Resistance
Shall comply with the initial brightness as per BS 873 Part IV of 1978
Night Visibility
The marker shall be bright as per BS 873 Part IV of 1978
Compression Resistance
There shall be no cracking sound at a pressure lower than 25 tones as per BS 873 Part
IV of 1978.
Corrosion Resistance
After immersing a sample of Road stud in a solution containing 30g/1 of sodium chloride for 30 days, there shall not be any signs of corrosion -(BS998).
NOTE: These markers are intended for application directly to pavement surfaces and are compatible with raised pavement makers. These adhesives should be of high quality and tested for conformance to customer requirements.
ADHESIVES
They shall be of Resin TypeEpoxy of 2 different components part 1 and 2 i.e Adhesive and Reactor without any volatile solvents in both.
Pot life: not less than 20 minutes at 20 oC Rotational cure time: between 20 and 30 minutes at 20 oC Hard cure: Between 40 and 60 minutes at 20 oC
APPLICATION
INSTRUCTION Preparation of Pavements
Make sure that the road surface is absolutely dry and free of oil and grease.
Mixing of Adhesive
Pour component B into the container of component A. Stir mixture by hand with a wooden or metal stick until uniform Grey Tint without a striae is obtained.
Installation
Pour the mixture on to the underside of the road stud. Then place the road stud firmly on the road surface. Adhesive should stand out for about 5mm to 10 mm over the edges of the stud.
Protection from the Traffic
Protect studs from traffic for 2 hours until the adhesive has properly hardened. Try by touching the adhesive.
NUMBER OF STUDS NEEDED FOR LABORATORY TESTS.
In order to approve a particular type of road stud, 4 sample road studs of each colour shall be submitted.
2006 GUARDRAILS
Contrary to the Standard Specification, guardrail posts shall be concrete 200 mm diameter set vertically at least 1.2m into the shoulder as directed by the Engineer. Spacer blocks shall also be made of concrete.
Beams for guardrails shall be "Armco Flexbeam" or similar obtained from a manufacturer approved by the Engineer.
KERBS
a) Vertical Joints
Vertical joints between adjacent Kerbs shall not be greater than 5 mm in width and shall be filled with a mortar consisting of 1:3 cement: sand by volume.
b) Transition between flush and raised kerbs
The transition between flush and raised kerbs (e.g. at bus bays) shall be termed as ramped kerbs. The transition between flush and raised kerbs shall occur within a length of 2.0 m.
2008
KILOMETRE MARKER POSTS
Kilometre marker posts shall be provided as directed by the Engineer and in compliance with
Standard Specification clause 2008.
2009
RUMBLE STRIPS
Where directed by the Engineer, the Contractor shall provide, place, trim, shape and compact to line and level asphalt concrete rumble strips on the finished shoulders. This shall be done to the satisfaction of the Engineer
2011
MEASUREMENT AND PAYMENT
Road reserve boundary posts
Road reserve boundary posts shall be measured by the number erected
Permanent road signs
Permanent road signs shall be measured by the number of each particular size erected.
Road marking
Road markings in yellow or white material shall be measured in square metres calculated as the plan area painted.
Road Studs
Road studs shall be measured by the number of each particular size erected.
Guardrails
Guardrail shall be measured by the metre as the length of the guardrail constructed.
Kerbs
Kerbs shall be measured by the metre as the length of kerb constructed
SECTION 22-DAYWORKS
2202
MEASUREMENTS AND PAYMENT
Plant
Where items of major plant listed in the schedule of Day works are specified by type (e.g. Concrete mixer etc.) the power rating if such items of plant are provided by the Contractor shall not be lower than the power ratings of such plant manufactured within the last two years prior to the date of BID. Any item of major plant employed upon Dayworks that has a power rating lower than specified above shall be paid for at rates lower than those in the schedule of Dayworks. The reduction in the rate payable shall be in proportion to the reduction in power rating below that specified above.
SECTION 23:
CONCRETE PAVING BLOCKS
This works shall consist of providing, laying and fixing of concrete paving blocks and concrete paving slabs on a sand base on the driveway and walkways and other areas as directed by the Engineer.
Concrete Paving Blocks
The paving blocks shall be of type S of any shape fitting within a 295 mm square coordinating space and a work size thickness of at least 30 mm. The blocks shall confirm to the requirements of BS 6717:Pt. 1:1986 or Kenya standard equivalent.
The laying shall be broken at intervals of 50 m by concrete ribs of class 25 concrete.
The blocks shall be laid on a 40 mm minimum sand base whose specifications are as in section
(b) of this specification.
Sand
For Sand Base
Sand used as bedding for paving blocks and slabs shall be natural sand either pit or river sand. The grading shall conform and be parallel as much as possible to KS02 95 Parts 1 &2: 1984 for zones 1,2 or 3. The other requirements shall be as specified in section 1703 (c ) of Standard Specifications.
Measurement
and Payment
Payment for paving blocks and paving slabs shall be by square metre laid. The rate quoted would include the cost of haulage to site of the blocks, slabs and sand, as no extra payment shall be made for haulage
BILL 25: HIV/AIDS AWARENESS AND PREVENTION CAMPAIGN
This BILL sets out the Contractors obligations with regard to on-site HIV / AIDS awareness campaign and preventive measures that are to be instituted.
25-50-001 HIV / AIDS Awareness and Prevention Campaign
The Contractor shall institute an HIV / AIDS awareness and prevention campaign amongst his workers for the duration of the Contract. The awareness campaigns shall be carried out in consultation and guidance of Ministry of Public Health or Local service providers approved by the Ministry of Public Health.
The Contractor shall display AIDS awareness posters in all buildings frequented by workers employed on the Contract, where such buildings fall under the control of the Contractor.
In addition at least two of the Contractors vehicles regularly used on site shall display HIV / AIDS awareness posters. The posters shall be printed on gloss paper and shall be at least A1 size on buildings and A3 size or other approved size on vehicles. The message on the posters shall be supplied by the Employer through the Engineer.
Aids awareness shall also be included in the orientation process of all workers employed on the Contract.
As part of the campaign the Contractor will be required to make condoms available to his workers.
Measurement Unit: month
The measurement shall be the calendar month or part thereof, measured over the duration of the campaign.
Payment:
The rate shall include full compensation for equipment; labour and material required for the provision of the item.
25-50-002 Soil Erosion Mitigation Measures
Soil Erosion problems must be identified and appropriate mitigation measures included during the preparation of the contract document. However the Engineer shall provide a Provisional Sum for Soil Erosion Mitigation Measures that were foreseen during the preparation of the document.
Measurement
A Provisional Sum shall be included in the Bill of Quantities for this item.
25-50-003 Barazas for Cross-cutting Issues
The Contractor shall arrange and conduct meetings and/or training sessions for workers and staff on cross-cutting issues, including Community Participation, Environmental Mitigation, Gender Rights, HIV/AIDS, Workers Rights at times and locations directed by the Engineer.
Measurement
A Provisional Sum shall be included in the Bill of Quantities for this item payable on documented expenditure.
Section E
DRAWINGS CONTENTS:
TOC \o "1-1" \t "Heading 2,2,Heading 3,3"
CONRACT DRAWINGS
FIGURE C.1 - CROSS SECTION A (MINOR ROAD STANDARD CROSS-SECTION) C-1
FIGURE C.2 - CROSS SECTION B (REDUCED CROSS-SECTION) C-2
FIGURE C.3 - MITRE DRAINS C-3
FIGURE C.4 - SCOUR CHECKS C-4
FIGURE C.5 - DIMENSIONS OF SCOUR CHECKS FOR STANDARD DRAIN C-5
FIGURE C.6 - MASONRY SCOUR CHECKS C-6
FIGURE C.7 - CULVERT ENTRY / EXIT STRUCTURE TYPES C-7
FIGURE C.8 - HEADWALL TYPE 1 (HEAD AND WINGWALLS) C-8
FIGURE C.9 - HEADWALL TYPE 2 (DROP INLET) C-9
FIGURE C.10 - HEADWALL TYPE 3A (CONCRETE BLOCK HEADWALLS) C-10
FIGURE C.11 - HEADWALL TYPE 3B (STONE MASONRY HEADWALLS) C-11
FIGURE C.12 - HEADWALL TYPE 4 (ACCESS CULVERT) C-12
FIGURE C.13 - BEDDING AND HAUNCH PROFILES TYPES I & II C-13
FIGURE C.14 - BEDDING AND HAUNCH PROFILES TYPES III & IV C-14
FIGURE C.15 - ACCESS DRIFT C-15
FIGURE C.16 - TRAFFIC SIGNS C-16
FIGURE C.17 - BILLBOARD C-17
TOC \o "1-1" \t "Heading 2,2,Heading 3,3" PREAMBLE TO BILLS OF QUANTITIES C-18
QUANTITIY ASSESSMENT FORMS C-19
CODES AND ABBREVIATION C-20
QUANTITY ASSESSMENT C-21
ROAD IMPROVEMENT PLAN C-22
BILL OF QUANTITIES
SUMMARY C-23
BILL 1 PRELININARIES AND GENERAL COSTS C-24
BILL 2 SETTING OUT C-25
BILL 4 SITE CLEARANCE C-26
BILL 5 EARTH WORKS C-27
BILL 7 EXCAVATION AND FILLING STRUCTURES C-28
BILL 8 ROAD DRAINAGE AND STRUCTURE WORKS C-29
BILL 10 GRADING AND GRAVELLING WORKS C-30
BILL 22 DAY WORKS C-31
FIGURE C.1 - CROSS SECTION A (MINOR ROAD STANDARD CROSS-SECTION) FIGURE C.3 - MITRE DRAINS FIGURE C.4 - SCOUR CHECKS FIGURE C.5 - DIMENSIONS OF SCOUR CHECKS FOR STANDARD DRAIN FIGURE C.6 - MASONRY SCOUR CHECKS
Cross- SectionSizes in mmExcav. (m3)Stone masonry (m3)Apron stone pitching (m3)LengthWidthDepthA24002005500.220.250.18B20002005000.180.20.14 FIGURE C.7 - CULVERT ENTRY / EXIT STRUCTURE TYPES
NOTE: Coding system has been used in describing the standardised designs of the various culvert entry and exit structures. The code names consist of a number to specify shape and function as elaborated in above while the used construction materials are identified through an alphabetic symbol as follows: A=Concrete block B=Stone masonry C=Dressed stones An example code of B2 would therefore stand for a drop inlet type structure to be built in stone masonry. FIGURE C.8 - HEADWALL TYPE 1
DIMENSIONS AND MATERIAL REQUIREMENTSTYPE B(STONE MASONRY)900 0.600.402.891.200.200.400.301.390.401.50 1.03 1.35 0.53600 0.400.302.351.000.200.400.301.150.401.20 0.420.930.36450 0.400.302.201.000.200.400.301.150.401.05 0.4 0.8 0.33TYPE A(CONCRETE BLOCKS900 0.300.402.891.200.200.200.301.390.201.50 0.510.670.53600 0.300.302.351.000.200.200.301.150.201.20 0.32 0.47 0.36450 0.300.302.201.000.200.200.301.150.201.05 MATERIAL REQUIREMENT0.30.40.33 PIPE DIAMETER IN (M) UNITmm mmmmmmm m3 m3 m3FOUNDATIONFOUNDATIONFOUNDATIONAPRONAPRONWALLWALLWALLWALLAPRON FOUNDATION(Concrete)HEAD/WINGWALLS(Concrete/Masonry)APRON(Concrete)DIMENSIONabcdefghIk (HEAD AND WINGWALLS)
CULVERT PIPESNo. of Pipes6.007.008.00X-SECTION WIDTH4.505.506.50 FIGURE C.9 - HEADWALL TYPE 2 (DROP INLET)
DIMENSIONS AND MATERIAL REQUIREMENTSTYPE B(STONE MASONRY)900 0.400.301.501.000.200.600.601.200.401.501.000.30 0.79 2.61 0.30600 0.400.301.201.000.200.600.400.800.401.201.000.30 0.72 1.63 0.24450 0.400.301.201.000.200.600.300.600.401.201.000.38 0.72 1.24 0.24TYPE A(CONCRETE BLOCKS900 0.300.301.400.900.200.600.601.200.201.501.000.30 0.52 1.11 0.30600 0.300.301.100.900.200.600.400.800.201.201.000.30 0.47 0.69 0.24450 0.300.301.100.900.200.600.300.600.201.201.000.38MATERIAL REQUIREMENT0.47 0.53 0.24 PIPE DIAMETER IN (M) UNITmmmmmmmmmmmm m3 m3 m3FOUNDATIONFOUNDATIONFOUNDATIONAPRONAPRONDROP INLETDROP INLETDROP INLETDROP INLETDROP INLETDROP INLETDROP INLETFOUNDATION(Concrete)HEAD/WINGWALLS(Concrete/Masonry)APRON(Concrete)DIMENSIONabcdefghIklm
DIMENSIONS AND MATERIAL REQUIREMENTSTYPE A(CONCRETE BLOCKS 600 0.500.301.700.600.200.200.500.400.201.201.100.251.600.30 0.19 0.34 0.99450 0.500.301.550.600.200.200.500.400.201.050.950.251.450.30MATERIAL REQUIREMENT0.230.310.95 PIPE DIAMETER IN (M) UNITmm mmmmmmmmmmm m3 m3 m3FOUNDATIONFOUNDATIONFOUNDATIONAPRONAPRONHEADWALLHEADWALLHEADWALLHEADWALLHEADWALLFOUNDATIONFOUNDATIONHEADWALLFOUNDATIONFOUNDATION(Concrete)HEAD/WINGWALLS(Concrete/Masonry)APRON(Concrete)DIMENSIONabcdefghIklmnoFIGURE C.10 - HEADWALL TYPE 3A (CONCRETE BLOCK HEADWALLS)
TYPE B (CONC. BLOCKS)600 0.400.301.700.900.200.750.500.300.401.20 0.20.690.22450 0.400.301.550.900.200.750.500.300.401.05MATERIAL REQUIREMENT0.190.620.19 PIPE DIAMETER IN (M) UNITmm mmmmmmm m3 m3 m3FOUNDATIONFOUNDATIONFOUNDATIONAPRONAPRONHEADWALLHEADWALLHEADWALLHEADWALLFOUNDATIONFOUNDATION(Concrete 1:3:6)HEAD/WINGWALLS(Concrete/Masonry)APRON(Concrete 1:2:4)DIMENSIONabcdefghImFIGURE C.11 - HEADWALL TYPE 3B (STONE MASONRY HEADWALLS)
DIMENSIONS AND MATERIAL REQUIREMENTSTYPE B(STONE MASONRY)900 600 0.400.301.490.600.200.400.100.690.400.800.40 0.260.580.14450 0.400.301.340.600.200.400.100.690.400.650.40 0.24 0.50 0.12TYPE A(CONCRETE BLOCKS900 600 0.300.301.490.600.200.200.100.690.200.800.40 0.2 0.29 0.14450 0.300.301.340.600.200.200.100.690.200.650.40 MATERIAL REQUIREMENT0.180.250.12 PIPE DIAMETER IN (M) UNITmm mmmmmmmm m3 m3 m3FOUNDATIONFOUNDATIONAPRONAPRONAPRONWINGWALLSWINGWALLSHEADWALLSHEADWALLSHEADWALLSHEADWALLS FOUNDATION(Concrete 1:2:4, 1:3:6)HEAD/WINGWALLS(Concrete/Masonry)APRON(Concrete)DIMENSIONabcdefghIkI FIGURE C.12 - HEADWALL TYPE 4 ( FOR ACCESS CULVERTS)
Diameter (D)450 (mm)600 (mm)900 (mm) Dimensions in (m) a 0.150.20.2 b 0.10.150.15 c 0.861.121.48 d 0.560.721.08 e 0.140.180.27 f (min.) 0.340.450.68 g --- h 0.240.330.42 i ---ConcreteVolume in (m3/m) 0.160.30.48Application- Fair subgrade condition;- Overfill > ¾ Diameter;- Seasonal waterflow only. Remarks- Use gravel material for back/ overfill.
450 (mm)600 (mm)900 (mm)Dimensions in (m)0.150.20.20.10.150.150.861.121.480.560.721.080.280.360.540.340.450.68---0.380.510.69---Volume in (m3/m)0.20.370.56 - Fair to poor subgrade Condition; - Overfill > ¾ Diameter; - Seasonal waterflow only. - Use gravel material for back/ overfill. FIGURE C.13- BEDDING AND HAUNCH PROFILES TYPES I & II FIGURE C.14 - BEDDING AND HAUNCH PROFILES TYPES III & IV
Diameter (D)450 (mm)600 (mm)900 (mm) Dimensions in (m) a 0.150.20.2 b 0.10.150.15 c 0.861.121.48 d 0.560.721.08 e 0.420.540.81 f (min.) 0.230.30.45 g --- h 0.520.690.96 i ---ConcreteVolume in (m3/m) 0.260.470.71Application- Fair subgrade condition;- Overfill > ¾ Diameter;- Seasonal waterflow only. Remarks- Use gravel material for back/ overfill.
450 (mm)600 (mm)900 (mm)Dimensions in (m)0.150.20.20.10.150.150.861.121.480.560.721.080.460.520.780.150.150.150.150.150.150.811.021.380.280.350.45Volume in (m3/m)0.370.610.92 - Fair to poor subgrade Condition; - Overfill > ¾ Diameter; - Seasonal waterflow only. - Use gravel material for back/ overfill.
QUANTITIES TABLECross sectionDIMENSIONSExcavation (m3)Stone masonry (m3)150mm Grouted stone pitching (m3)ABCDEA40001800600180042007.501.3021.75600018006001800420010.001.6030.15B40001400400180036007.001.2018.3060001400400180036009.001.5025.50FIGURE C.15 ACCESS DRIFT FIGURE C.16 - TRAFFIC SIGN
Quantities Tables
A Parabolic waterway
Top width (m)DepthExcavation volume
(m3/m)1.500.60.62.000.60.83.000.751.5
B At level scour check
Top width (m)Excavation volume
(m3)Hardcore volume
(m3)1.500.100.102.000.150.153.000.250.25
Figure C9c- At level Scour checks
Quantities Tables
A. Gully head shaping and stone lining
Top width (m)Depth (m)Length (m)Excavation volume
(m3/)Hardcore Volume (m3)1.500.33.200.801.01.500.33.201.201.52.000.33.201.602.0
B. Gully Head shaping, stone & posts lining
Top width (m)Depth (m)Length (m)Excavation volume
(m3/)Hardcore Volume (m3)2.00.33.001.501.802.00.33.402.402.02.00.34.504.602.702.00.36.7010.204.0
Figure C9d Gully head and stone and post protectionC-9d
Spacing in metres between check dams
Height of check dam spillway (m)% slope0.150.250.500.751.00515.025.075.08.717.52535102.54.28.412.616.8151.42.34.66.99.2200.91.63.24.86.4251.32.53.85.0301.02.03.04.0401.62.43.2501.21.82.0
Figure C9e Stone and post dam checks
Section E
BILLS OF QUANTITIES
PREAMBLE TO BILL OF QUANTITIES
1. The Bills of Quantities forms part of the Contract Documents and are to be read in conjunction with the Instructions to Bidders, Conditions of Contract Parts I and II, Specifications and Drawings.
2. The brief description of the items in the Bills of Quantities is purely for the purpose of identification, and in no way modifies or supersedes the detailed descriptions given in the conditions of Contract and Specifications for the full direction and description of work and materials.
3. The Quantities set forth in the Bills of Quantities are estimated , representing substantially the work to be carried out, and are given to provide a common basis for bidding and comparing of Bids. There is no guarantee to the Contractor that he will be required to carry out all the quantities of work indicated under any one particular item or group of items in the Bill of Quantities. The basis of payment shall be the Contractor's rates and the quantities of work actually done in fulfilment of his obligation under the Contract.
4. The prices and rates inserted in the Bills of Quantities will be used for valuing the work executed, and the Engineer will only measure the whole of the works executed in accordance with this Contract.
5. A price or rate shall be entered in ink against every item in the Bills of Quantities with the exception of items that already have Provisional sums affixed thereto. The bidders are reminded that no nil or included rates or lump-sum discounts will be accepted. The rates for various items should include discounts if any. Bidders who fail to comply will be disqualified.
6. Provisional sums (including Dayworks) in the Bills of Quantities shall be expended in whole or in part at the discretion of the Engineer.
The price and rates entered in the Bills of Quantities shall, except insofar as it is otherwise provided under the Contract, include all Constructional plant to be used, labour, insurance, supervision, compliance testing, materials, erection, maintenance of works, overheads and profits, taxes and duties together with all general risks, liabilities and obligations set out or implied in the Contract, transport, electricity and telephones, water, use and replenishment of all consumables, including those required under the contract by the Engineer and his staff.
Errors in the pricing of the Bills of Quantities will be corrected in accordance with Clause (6) of instructions to bidders
COUNTY GOVERNMENT OF KISUMUBILLS OF QUANTITIES FORCONSTRUCTION OF MBITA/SEGASEGA TWIN CULVERT1. PRELIMINARIES AND GENERAL COST ITEMSITEM NO.ITEM DESCRIPTIONQTYUNITRATE AMOUNT01-60-005Provide ,erect and maintain Publicity Sign Boards during the contract Period as directed by the engineer
1No01-60-001
Allow Prime Cost Sum of sh.20,000 (Twenty Thousand Shillings Only)for project administation, supervision and management
PC SUM20,000 01-61-002Allow Prime Cost Sum for provision of Survey Works
1PC SUM01-61-003
Allow Prime Cost Sum for material testing
1PC SUM01-60-008Include percentages of Prime Cost Sums in item above for contractors overhead and profit.% TOTAL FOR PRELIMIMARIES AND GENERAL COST ITEMS CARRIED TO SUMMARY
08. CULVERT AND DRAINAGE WORKSITEM NO.ITEM DESCRIPTIONQTYUNITRATE AMOUNT08-50-005
Ditch/mitre drain/catch water drain excavation 1,500 M3
08 -60- 034
Provide lay and join 900mm inner dia concrete pipes5LM
08-60-038
Selected backfill material42M308-70-001
Excavation in soft material for pipe culverts,headwalls,wingwalls,aprons,toe walls and drop inlets and compact as directed by the Engineer28.6M308 -90 - 008
Provide and place class 15/20 concrete to beds5.99M308 -90 009
Provide and place class 25/20 concrete to head walls,wing walls,aprons,sorrounds to walls,inlets and outlets to pipe culverts including formwork39.6M3 08 -60 - 037
Provide and place A142 fabric mesh reinforcement45M² TOTAL FOR PASSAGE OF TRAFFIC CARRIED TO SUMMARY
25. HIV/AIDS AWARENESS AND PREVENTION CAMPAIGNITEM NO.ITEM DESCRIPTIONQTYUNITRATE AMOUNT 25--50--01The contractor shall institute an HIV/AIDS awareness and prevention campaign against his workers for the duration of the contract1LS TOTAL FOR HIV/AIDS AWARENESS AND PREVENTION CAMPAIGN CARRIED TO SUMMARY
S U M M A R YITEM NOITEM DESCRIPTIONAMOUNT IN KSH1PRELIMINARIES8CULVERT AND DRAINAGE WORKS25HIV/AIDS AWARENESS & PREVENTION CAMPAIGN SUB-TOTAL ADD 10% CONTIGENCY SUMSUB-TOTALADD: 16% VAT GRAND TOTAL [BID SUM]
AMOUNT IN WORDS
.
NAME OF TENDERER
...........
ADDRESS
..
SIGNATURE
DATE
WITNESS NAME
..
ADDRESS
..
SIGNATURE
DATE
Section F
STANDARD FORMS
(i) Form of Invitation for Tender
.
. 158
Form of Tender
.
159
Appendix to form tender
...160
(iii) Qualification Information
.
. 161
1. Individual Tenderers
. 163
2. Joint Ventures
164
3. Line of Credit
165
4. Declaration form
..166
5. Details of Contractors Experience
167
6. Details of Ongoing Projects
168
7. Schedule of Key Personnel
169
8. Details of Subcontractors
.. 170
9. Schedule of Plants and Equipment..171
Tender Questionnaire
.. 172
Confidential Business Questionnaire
. 173-174
(vi) Schedule of Particulars
175
1. Particulars of Firm
175
2. Particulars of Insurance
. ..177
Certificate of Bidders Pre-site Visit
177
Supervision Check List
.178
(I) FORM OF INVITATION FOR TENDER
_______________________[date]
To: _____________________________________ [name of Contractor]
_____________________________________[address]
_____________________________________
_____________________________________
Dear Sirs:
Reference:______________________________________________[Contract Name]
You have been prequalified to tender for the above project.
We hereby invite you and other prequalified tenderers to submit a tender for the execution and completion of the above Contract.
A complete set of tender documents may be purchased by you from ____
________________________________________________________________________
[mailing address, cable/telex/facsimile numbers].
Upon payment of a non-refundable fee of Kshs __________________________
All tenders must be accompanied by ________________number of copies of the same and a security in the form and amount specified in the tendering documents, and must be delivered to
________________________________________________________________________
[address and location]
at or before _______________________(time and date). Tenders will be opened immediately thereafter, in the presence of tenderers representatives who choose to attend.
Please confirm receipt of this letter immediately in writing by cable/facsimile or telex.
Yours faithfully,
_____________________________________ Authorized Signature
_____________________________________ Name and Title
(II) FORM OF TENDER
TO: __________________________[Name of Employer) ____________[Date]
__________________________[Name of Contract]
Dear Sir,
1. In accordance with the Conditions of Contract, Specifications, Drawings and Bills of Quantities for the execution of the above named Works, we, the undersigned offer to construct, install and complete such Works and remedy any defects therein for the sum of Kshs._____________________________[Amount in figures]Kenya Shillings___________________________________________________________________________________________[Amount in words]
We undertake, if our tender is accepted, to commence the Works as
soon as is reasonably possible after the receipt of the Project Managers notice to commence, and to complete the whole of the Works comprised in the Contract within the time stated in the Appendix to Conditions of Contract.
We agree to abide by this tender until ___________________[Insert date], and it shall remain binding upon us and may be accepted at any time before that date.
Unless and until a formal Agreement is prepared and executed this tender together with your written acceptance thereof, shall constitute a binding Contract between us.
We understand that you are not bound to accept the lowest or any tender you may receive.
Dated this ____________________ day of _________________2018
Signature __________________in the capacity of___________________
duly authorized to sign tenders for and on behalf of
___________________________________________________[Name of Tenderer]
of_________________________________________________[Address of Tenderer]
Witness; Name______________________________________
Address_____________________________________
Signature___________________________________
Date_______________________________________
APPENDIX TO FORM OF TENDER
(This Appendix forms part of the Tender)
CONDITIONS OF CONTRACTCLAUSEAMOUNTBid Security (Bank Guarantee Only)2% of the tender sumAmount of Performance Security10.10.5%(Unconditional Bank Guarantee)Submission of Performance SecuritySubmitted by the 15th day from the date of award letterWork Programme to be submitted14.1Not later than 14 (fourteen) days after issuance of Order to CommenceCash flow estimate to be submitted14.3Not later than 14 (fourteen) days after issuance of Order to CommenceMinimum amount of Contractors All Risk23.20.3% of the Contract PriceInsurance CoverSubmission of Contractors All Risk InsuranceSubmitted by the 15th day from the date ofCoveraward letterPeriod for commencement, from Engineers order to commence41.114 daysTime for completion43.110 WeeksAdvance Payment60.12Advance paymentAmount of liquidated damages47.10.1 % of the contract price per day.Limit of liquidated damages47.15% of Contract ValueDefects Liability period49.13 monthsPercentage of Retention60.310% of Interim Payment CertificateLimit of Retention Money60.310% of Contract PriceMinimum amount of interim certificates60.2500,000Appointer of Arbitrator67(3)The Chartered Institute of Arbitrators Kenya Branch.Notice to Employer and Engineer68.2The Employers address is:The Chief OfficerRoads Transport & Public WorksCounty Government of kisumuP.O. Box 2378-40100KISUMUThe Engineers address is:Sub-County Roads EngineerCounty Government of kisumuP.O. Box 2378-40100KISUMU
Signature of Tenderer
Date
(IV) OTHER SUPPLEMENTARY INFORMATION
Financial reports for the last three years, balance sheets, profit and loss statements, auditors reports etc. List them below and attach copies.
Evidence of access to financial resources to meet the qualification requirements. Cash in hand, lines of credit etc. List below and attach copies of supporting documents (bank to fill attached form).
Name, address, telephone, telex, fax numbers of the Tenderers Bankers who may provide reference if contacted by the Employer.
Submit copies of audited profit and loss statements and balance sheet for the last three calendar years and estimated projection for the next two years with certified English translation where appropriate.
Give turnover figures for each of the last three (3) financial years. Quote in millions and decimal thereof.
Type of \WorkYearYearYearKshs.Kshs.Kshs.RoadworksOther civil engineering worksOther (specify)Total
SUMMARY OF ASSETS AND LIABILITIES OF THE AUDITED FINANCIAL STATEMENTS OF THE LAST THREE (3) FINANCIAL YEARS
YearYearYearKshs.Kshs.Kshs.1.Total Assets2.Current Assets3.Bank credit Line Value4.Total Liabilities5.Current Liabilities6.Net worth (1-4)7.Working capital (2+3-4)
Name/Address of Commercial Bank providing credit line
Total amount of credit line KShs.
..
Attach certified copies of financial bank statements of the last three years. Attach a certified copy of Undertaking of the Bank to providing the credit.
Information on current litigation in which the Tenderer is involved.
OTHER PARTY (IES)CAUSE OF DISPUTEAMOUNT INVOLVED (KSHS)
I certify that the above information is correct.
Name/TitleSignatureDate (V) QUALIFICATION INFORMATION
Individual Tenderers or Individual Members of Joint Ventures
Constitution or legal status of tenderer (attach copy or Incorporation Certificate);
Place of registration: ____________________________
Principal place of business _____________________________
Power of attorney of signatory of tender ____________________
Total annual volume of construction work performed in the last five years
YEARVOLUMECURRENCYVALUE
1.3 Work performed as Main Contractor on works of a similar nature and volume over the last five years. Also list details of work under way or committed, including expected completion date.
[Fill in the Details as described in the Table attached on Pages S-6 and S-7]
Major items of Contractors Equipment proposed for carrying out the Works. List all information requested in the table provided.
[Fill in the Details as described in the Table attached on Page S-10]
Qualifications and experience of key personnel proposed for administration and execution of the Contract.
[Fill in the Details as described in the Table attached on Page S-8]
.
__________________________________________________________________
____________________________________________________________
Statement of compliance with the requirements of Clause 1.2 of the Instructions to Tenderers.
____________________________________________________________
_____________________________________________
Proposed program (work method and schedule) for the whole of the Works. Attached a detailed proposed work plan for the execution of the Works described.
Joint Ventures
The information listed in 1.1 1.10 above shall be provided for each partner of the joint venture.
The information required in 1.11 above shall be provided for the joint venture.
Attach the power of attorney of the signatory(ies) of the tender authorizing signature of the tender on behalf of the joint venture
Attach the Agreement among all partners of the joint venture ( and which is legally binding on all partners), which shows that:
all partners shall be jointly and severally liable for the execution of the Contract in accordance with the Contract terms;
one of the partners will be nominated as being in charge, authorized to incur liabilities and receive instructions for and on behalf of any and all partners of the joint venture; and
the execution of the entire Contract, including payment, shall be done exclusively with the partner in charge.
LETTER OF CREDIT
To
The Chief Officer
Roads Transport & Public Works,
County Government of Kisumu,
P.O. Box 2738-40100
kisumu
RE: LINE OF CREDIT FOR (CONTRACT DETAILS)
Reference is made to inquiry from our Customer
.. of P.O. Box
. in regard to line of Credit for financing above tender. We wish to state as following.
M/S
..(name of tender) has satisfactorily conducted an account dominated in Kenya Shillings with us for a period of more than one year.
Currently the above named Customer enjoys
A Bank Overdraft facility of Kshs
.
.
A bank loan of Kshs
.
As per the prudential norms for Financing which MUST be fulfilled by our customer, we are in a position to provide a line of credit to M/s
.
(tenderer name) for Kshs
This information is given in strict confidence, and without any guarantee or liability on the part of the bank or any of its officers.
Yours Faithfully
Bank Authorised Signatory
DECLARATION FORM
Date
To
The Chief Officer
Roads Transport & Public Works,
County Government of Kisumu,
P.O. Box 2738-40100
kisumu
The tenderer i.e. (name and address)
declare the following:
Has not been debarred from participating in public procurement.
Has not been involved in and will not be involved in corrupt and fraudulent practices regarding public procurement.
Name/Title Signature Date
(To be signed by authorized representative and officially stamped)
. DETAILS OF CONTRACTORS EXPERIENCE
In the table below, give a brief summary of the Companys major Road Works carried out and completed in the last FIVE years. The works listed should be similar to the Works described in this tender.
DESCRIPTION OF WORKS,
CLIENT AND CONTACT PERSONTOTAL VALUE OF WORKS
(KSH.)CONTRACT PERIOD
(YEARS)YEAR COMPLETED
Note: Attach relevant documentary evidence.
I certify that the above Road Works were successfully carried out and completed by ourselves.
.
(Title) (Signature) (Date)
4. DETAILS OF ONGOING PROJECTS
In the table below, give a brief summary of the Companys major Road Works that are currently ongoing. The works listed should be similar to the Works described in this tender.
DESCRIPTION OF WORKS, CLIENT AND CONTACT PERSON
CONTR-
ACT PERIOD
DATE OF COMMEN-
CEMENTINTENDEDDATE OF
COMPLE-
TION
TOTAL VALUE OF WORKS% COMPLE-
TED TO DATE
Note: Attach relevant documentary evidence.
I certify that the above Road Works are being carried out by ourselves and that the above information concerning them is correct.
.
(Title) (Signature) (Date)
5. SCHEDULE OF KEY PERSONNEL
In the table below, give the details of the Tenderers Key Technical Personnel who will be responsible for the major activities of the works described in this tender, both at the Headquarters and at the Site.
DESIGNATION
NAMENATIONA-LITYSUMMARY OF QUALIFICATIONS AND EXPERIENCE
Note: Attach the CVs of the Key Personnel.
I certify that the above information is correct.
.
(Title) (Signature) (Date)
6. DETAILS OF SUB-CONTRACTORS
If the Tenderer wishes to sublet any portions of the works under any heading, he must give below the details of the sub-contractors he intends to employ for each portion.
Failure to comply with this requirement may invalidate the tender.
FULL NAME AND ADDRESS OF THE SUB-CONTRACTORPORTION OF WORKS TO BE SUB-CONTRACTED AND CONTRACT VALUE
SUB-CONTRACTORS EXPERIENCE IN SIMILAR WORKS
Note: Attach relevant evidence.
I certify that the above information is correct.
.
(Title) (Signature) (Date)
7. SCHEDULE OF PLANT AND EQUIPMENT
PARTICULARS OF EACH UNIT
TYPE/
RATING
SERIAL NO. & REG. NO.
YEAR OF MANUFA-CTURE
WHERE
MADE
VALUEOWNERSHIP
PRESENT LOCATION
WEEK WHEN AVAILABLE ON SITEOWNED
(Give SR. No. and Reg. No)TO HIRE
(Give name and address of Owner)HIRE PURCHASE
(Give details as stated in the Footnote)PURCHASE
(Give details as stated in the Footnote)
Note *Details of each machine/equipment in more than one of the same make or type must be given separately. Items to be imported pursuant to the conditions of contract to be indicated together with sellers name, address and CIF value. Details of proposed hire or hire purchase to be submitted giving names and addresses of hiring/selling party and serial number/engines number.
**Before the award of Contract, the Project Manager may carry out physical verification of the availability of the plant and equipment
listed on the schedule (IV) TENDER QUESTIONNAIRE
Please fill in BLOCK LETTERS.
Full names of Tenderer [Name of the Firm]
Full address of Tenderer to which tender correspondence is to be sent (unless an agent has been appointed below)
.
Telephone/Cellphone number (s) of Tenderer
Telex/Fax address of Tenderer
Name of Tenderers Representative to be contacted on matters of the Tender during the tender period
Details of tenderers nominated agent (if any) to receive tender notices. This is essential if the tenderer does not have his registered address in Kenya (name, address, telephone, telex)
_______________________
Signature of Tenderer
Make copy and deliver to:____________________________________________
(Name of Employer)
(V) CONFIDENTIAL BUSINESS QUESTIONNAIRE
You are requested to give the particulars indicated in Part 1 and either Part 2(a), 2(b) or 2(c) and 2(d) whichever applies to your type of business.
You are advised that it is a serious offence to give false information on this Form.
Part 1 General
Business Name
Location of business premises; Country/Town
.
Plot No
Street/Road
Postal Address
Tel No
..
Nature of Business
..
Current Trade Licence No
Expiring date
Maximum value of business which you can handle at any time: K. pound
..
Name of your bankers
Branch
Part 2 (a) Sole Proprietor
Your name in full
Age
Nationality
Country of Origin
*Citizenship details
Part 2 (b) Partnership
Give details of partners as follows:
Name in full Nationality Citizenship Details Shares
1
2
3
Part 2(c) Registered Company:
Private or public
State the nominal and issued capital of the Company-
Nominal Kshs
Issued Kshs
Give details of all directors as follows:
Name in full . Nationality. Citizenship Details*. Shares.
1.
2.
3.
4.
Part 2(d) Interest in the Firm:
Is there any person / persons in
(Name of Employer) who has interest in this firm? Yes/No
(Delete as necessary)
I certify that the information given above is correct.
(Title) (Signature) (Date)
Attach proof of citizenship
(VI) SCHEDULE OF PARTICULARS
1. PARTICULARS OF FIRM
Name of Company:
Postal Address:
Physical Address:
Tel. Nos.
Fax No.
E-mail:
.
.
.Full names of Directors and their citizenship:
Registered Office, address and Telephone/Cellphone No.
Workshop, Yard, Stores address:
Type of services the Company provides:
Registration with Government Departments:
Name and address of Companys bankers:
Statements by Companys bankers on financial status (attach copy):
Date:
Signed:
..
.
2. PARTICULARS OF INSURANCE
Sn
Type of Insurance
Name of Company
Registered Address
1
Insurance of Works
2
Plant and Machinery
3
Public Liability
4
Workmens Compensation
5
Employers Liability
6
Personal Accident
NOTE: Certified photocopies of the relevant insurance policies should
accompany these particulars.
Date:
. Signed:
..
CERTIFICATE OF BIDDERS VISIT TO SITE
This is to certify that
[Name/s]
Being the authorized representative/Agent of [Name of bidder]
participated in the organised inspection visit of the site of the works for the
CONSTRUCTION OF MBITA/SEGASEGA TWIN CULVERT
held on
..day of
20
..
Signed
..
(Employers Representative)
(Name of Employers Representative)
NOTE: This part is to be completed at the
time of the organized site visit.
..
(Designation DateSignaturesProject Name:TheEngineer's1. This check list is for Sub-County Engineer Engineer to check contractor's work execution process.Representative2. Fill in date of checking as (day/month), mark as indicated in Filling Example, and state remarks.(ProjectEngineer)3. Put this check list in the Monthly Progress Report.RegidentEngineerbeforeDuring executionafterRemarksDateDateDateDateDateDateDateDateDateDateReason for unsatisfactoryItemCheck Pointperformance (Site diary No.)Corrective order by authority//////////(Date)Excellent point to be specified1ExecutionWorks Execution Programmesystem in(including its revised versiongeneral1-1if any) is submitted before thedate specified in contractdocumentWorks Execution Programme1-2properly reflects the givenspecifications and siteconditionsExecution procedures are in1-3accordance with WorksExecution Programme2EquipmentAll equipment used areholding2-1properly mobilized inaccordance with WorksExecution ProgrammeAll equipment used is well2-2maintained during theexecution of works3Contractor'sQualified technical staff ofin-house staff3-1contractor are properlyassigned as specified in WorksExecution ProgrammeContractor's in-house key staff3-2understand work process andschedule properly3-3Contractor's in-house staff
PAGE \* MERGEFORMAT 4
PAGE \* MERGEFORMAT 59
PAGE \* MERGEFORMAT 61
PAGE \* MERGEFORMAT 62
PAGE \* MERGEFORMAT 64
PAGE \* MERGEFORMAT 68
Spot improvement Specifications
PAGE 18
PAGE \* MERGEFORMAT 162
PAGE vi
PAGE 16
PAGE \* MERGEFORMAT 174
PAGE \* MERGEFORMAT 176
CONSTRUCTION OF MBITA/SEGASEGA TWIN CULVERT
Gravel Layer = 0.12 compacted (0.20 on special sections)
8% (compacted)
1.200.50
Carriageway 5.40
Min. 0.50
0.60
1.20
0.35
0.35
8%
Backslope
Min. 3 : 2
Max. 3 : 1
NOTE:
- ALL SPECIFIED DIMENSIONS IN m.
- TRAFFIC LEVELS OF MORE THAN 200 VPD MAY JUSTIFY
RUNNING SURFACE WIDTH INCREASE TO 6.50 METRES
0.60
2.7
2.7
FIGURE C.2 - CROSS SECTION B (REDUCED CROSS-SECTION)
NOTE: - ALL SPECIFIED DIMENSIONS IN m.
Gravel Layer - 0.10 compacted (0.20 on special sections)
Min. 0.50
0.40
8% (compacted)
1.000.50
Carriageway 4.50
0.40
1.00
2.25
2.25
0.305
0.30
8%
Backslope
Min. 3 : 2
Max. 3 : 1
(0.20)
STONE WEIGHT: MIN. 10KG
STAKE DIAMETER: MIN. 0.10m
2400
(2000)
PLAN OF DRAIN WITH EROSION CHECKS
QUANTITIES TABLE
300
400
200
Flow
A SECTION OF MASONRY SCOUR CHECKS
A - A
A
A
350
400
BACKSLOPE
BACKSLOPE
SLOPE
SLOPE
150
CARRIAGEWAY
250
300
100
(200)
CARRIAGEWAY
(1000)
1200
600
(400)
300
300
A
A
250
TYPE 1 (ENTRY AND EXIT)
TYPE 2 (ENTRY ONLY!)
TYPE 3 (ENTRY AND EXIT)
TYPE 4 (ENTRY AND EXIT ON ACCESS)
B2
B1
B1
B1
e
B - B
d
i
b
variable
min. = 0.40m
Overfill:
min. = 3/4 of pipe diameter as inlet
a
Concrete
1:2:4
Concrete
1:3:6
Masonry or Concrete blocks
wingwalls & Headwalls
h
Concrete or masonry
1:2:4
l
i
e
b
B - B
i
f
d
g
h
Flush to earth road formation
a
a
variable
min. = 0.40m
Overfill:
min. = 3/4 of pipe diameter
b
Concrete
i
B - B
e
variable
max. = 0.40m
b
Flush to earth road formation
a
d
o
Overfill:
min. = 3/4 of pipe diameter
h
Concrete
b
B - B
Flush to earth road formation
a
d
i
variable
max. = 0.40m
Overfill:
min. = 3/4 of pipe diameter
Concrete
1:3:6
Overfill:
min. = 3/4 of pipe diameter as inlet
e
B - B
d
i
b
variable
min. = 0.40m
a
l
Concrete
1:3:6
D
STONE MASONRY TOES
ON FOUR SIDES OF
STRUCTURE (200X300mm)
200
300
B
C
E
150 mm
150mm GROUTED STONE PITCHING
1.50
1.80
0.60
1.50
A
1.50
1.50
0.60
1.20
X-SECTION X-X
PLAN
x
x
Road centre line
0.6m
Road Sign
Edge of Road
600
2000
600
450
600
50mm ð
3mm wall thickness
600
75mm
2400
200
16mm steel bar anchors welded across at bottom of post
Concrete Mix (1:2:4)
300
300
300
300
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