Desilting of drainage line work At Acher Gamtal Road, Parimal Hospital Road, Visat to Rathi Apartment Road, Visat to Tapovan Circle Road, Jawahar Chowk Circle to Sarvottam Nagar Road, Ramnagar Road and the surrounding areas by CCTV camera method in Sabarmati ward ,West Zone.”

Name of Work : - Desilting of drainage line work At Acher Gamtal Road, Parimal Hospital

Road, Visat to Rathi Apartment Road, Visat to Tapovan Circle Road, Jawahar Chowk Circle

to Sarvottam Nagar Road, Ramnagar Road and the surrounding areas by CCTV camera

method in Sabarmati ward ,West Zone.

Item Rate in Amount (in

Item Description Quantity Unit

Temporary / Permanent Plugging for

blocking of sewer line, branch connections

1 and diversion of flows and removal of all

plugs by any means etc. comp. as directed

by Engineer In Charge of the work.

A 300 mm dia 25 No. 1250

B 400 to 550 mm dia 45 No. 1500

C 600 to700 mm dia 40 No. 2500

D 900 mm dia 20 No. 3600

E 1200 mm dia 10 No. 5000

Provide everything else required for

diversion of flow by pumping and / or by

passing and to maintain the sewerage

system functioning normal and managing

2 the flow without any sur-charging,

overflows etc during the De-silting/

rehabilitation works of the sewer line to

the satisfaction of the Engineer in charge

A 300 mm dia 500 RMT 100

B 400 to 550 mm dia 1890 RMT 150

C 600 to700 mm dia 500 RMT 250

D 900 mm dia 375 RMT 450

E 1200 mm dia 200 RMT 510

Loosen, de-silt and thoroughly clean and

remove debris and objects such as

boulders, bricks etc, bacteriological slimes,

roots, encrustations, grease, carbonated

deposits, etc from the sewer line including

disposal of silt / debris / malba / objects

etc, including solidification of

silt/malba/debris for disposal to the

dumping sites as per the direction of the

Engineer - in - charge.

( For Above 80% silted line) 100 % AS / 150 RMT 1230

( For 80% to 50 % Drainage silted line)

80 % AS / TENDER RATE

( For Less than 50% to 30 % Dr.silted line)

50 % AS/TENDER RATE

( For Above 80% silted line) 100 % AS / 320 RMT 1815

( For 80% to 50 % Drainage silted line)

80 % AS / TENDER RATE

( For Less than 50% to 30 % Dr.silted line)

50 % AS/TENDER RATE

( For Above 80% silted line) 100 % AS / 150 RMT 2460

( For 80% to 50 % Drainage silted line)

80 % AS / TENDER RATE

( For Less than 50% to 30 % Dr.silted line)

50 % AS/TENDER RATE

( For Above 80% silted line) 100 % AS / 75 RMT 3700

( For 80% to 50 % Drainage silted line)

80 % AS / TENDER RATE

( For Less than 50% to 30 % Dr.silted line)

50 % AS/TENDER RATE

( For Above 80% silted line) 100 % AS / 50 RMT 3700

( For 80% to 50 % Drainage silted line)

80 % AS / TENDER RATE

( For Less than 50% to 30 % Dr.silted line)

50 % AS/TENDER RATE

Survey to determine sewer alignment, levels,

M/H positions, including tracing of buried

manholes along alignment, proximity of

structures, measurement of exact length

between manholes & invert level, position and

detail of cross connections & submission of

drawings in total 2 Sets on A0 Size. Pre-

desilting as wellPost - desilting colour

CCTV/Photographic survey including pan and

Zoom inspection of laterals and defects and

submission of video tapes or CD inclusive of

colour photographs at every 10m interval

printed off video printer to the Engineer in

a. 300 mm dia 500 RMT 250

b. 400 to 550 mm dia 1890 RMT 250

c. 600 to700 mm dia 500 RMT 250

e. 900 mm dia 375 RMT 250

g. 1200 mm dia 200 RMT 250

Cutting of bituminous road of DBMand

Asphalt concrete of any thickness.

Brickwork using common burnt clay building

bricks having crushing strength not less than

35 kg/sq. cm in foundation and plinth in

cement mortar 1:5(icement : 5 coarse sand)

including racking out joints, curing, scaffolding

etc complete as directed for any height.

Raising buried manhole undereath road using

Brick masonarey with Bricks of Stremgth

KG/sq. Cm and cement mortorin 1:5 plaster

work in cement Mortar 1:4 and CC work Up to

new road level as per instruction of engineer

Providing And fixing fiber reinforced seat and

8 cover in line and CC 1:2:4 and finishing smooth 30 No. 2000

etc. Complete as directed Heavy Duty Type.

(in words also)

SealandSignatureoftheBidder Addl.CityEngineerDate:

TenderFeeRs.2400.00

EarnestMoneyRs.80,000.00

Contractor’sName&Address:

MEMORANDUMOFWORKINBRIEF

Desilting of drainage line work At Acher Gamtal

1. NameofWork Road, Parimal Hospital Road, Visat to Rathi

Apartment Road, Visat to Tapovan Circle Road,

Jawahar Chowk Circle to Sarvottam Nagar Road,

Ramnagar Road and the surrounding areas by

CCTV camera method in Sabarmati ward ,West

Rs.80,00,000.00(exclusiveofGST).GSTwillbepaidextraby

2. TenderEstimatedCost AMC/Authorityatprevailingratetothecontractor.

1% oftheTender Costintheform(Rs.80,000.00)

3. EarnestMoney (D.D./PayOrder/LocalMicrCheck/B.G.)

4 TenderFeeRs DemandDraftofRs.-2400.00

6. Time-Limit 12months

7. ValidityPeriod 120Days

8. Eligibility Criteria Register “D” class in PWD in Govt. R&B/CPWD/AMC or

equivalent registration with any other state Govt. or institutions.

(i)LastDateofSubmissionofthe

9. Tender Dt-30.04.2026upto18:00PM

(ii)ModeofSending a) In Sealed cover in duplicate copies by Registered Post

A.D,orbyCourier.orhanddelivery

b) Tendersentbyordinarypostwillberejectedoutright.

(iii)Descriptionessentialtobe a) Nameofwork,TenderNoticeNo.&TenderNo.

madeonsealedcover b) DateofreceivingtenderbyCorporations.

(iv)Modeofquotingrates in ThePricebidshallbesubmittedonlineonly.tshalln

ScheduleofQuantitiesandRates otbesubmittedPhysically.

10. DateofOpening Dt-01.05.2026upto15:00 PM

PlaceofSubmission&OpeningofT Submission of EMD. Tender fee and other Documents during officehours: On

11. ender Dt.01.05.2026 upto12:00hrsto Assistant Manager , 2nd Floor,

A.M.Office,Dr.RamanbhaiPatelBhavan,Usmanpura.Ahmedabad

MunicipalCorporation,W.Z.Office,Ahmedabad-380013.

(1) Rs.1000/- per day (for tenders amounting upto 10 Lakhs), (2)Rs.2500

per day (for tenders amounting above 10 Lakhs

12. PenaltyDuetoDelayofwork andupto30Lakhs),(3)Rs.5000perday(foralltendersamounting

above30Lakhs)butnotmorethen10%ofbill

13. DefectLiability Asper ‘B-1FormClose

Whenever a work is allotted by Engineering staff, whether minor ormajor of

Timepermittedtostartpartsofw part thereof of any amount, the contractor shall be

14. ork boundtostarttheworkswithin48hoursofintimationofwork.Communicationdonet

elephonicallyviaSMS,ViaWhatsappand

throughletter /E-mailshallbeconsidered legal and bindingforthe

same. Failure of comply to start the works in 48 hours of

intimationas above by contractor the contractor shall be levied

penalty of (1)Rs.1000/-perday

(fortendersamountingupto10Lakhs),(2)Rs.2500 per day (for tenders

amounting above 10 Lakhs and

upto30Lakhs),(3)Rs.5000perday(foralltendersamountingabove

30Lakhs).Threetimesfailuresbycontractorshallmakecontractorrespon

sibletobeblacklistedunlessandotherwisejustifiedproperly

inwriting/bindingwithin15daysoflastnoticeof

 The staff of the contractor shall wear safety

jackets,hoes, helmets etc. while on duty and any violation

will attractfineofRs. 5,000/-foreach incident.

15. Safety  Failuretoerectsafetysignageortryingtocarryouthewo

rkswithoutproperprecautions/safetymeasuresasequiredwill

attractafineofRs.5,000/-foreachincident.

16. Defect &Liability Period The contractor shall be responsible to make good and remedy

at his own expense any defect which may develop or may be

noticed before the period mentioned hereunder from the

certified date of completion, The within 15 days of receipt of

the notice. In the case of failure on the part of the contractor,

the Engineer-in-charge may rectify or remove or re-execute

the work at the risk & cost of the contractor. The Engineer-in-

charge shall be entitled to appropriate the whole or any part of

the amount of security deposit towards the expenses, if any,

Incurred by him in rectification, removal or re-execution. The

Defects Liability period shall be as under(a) for all works

costing upto Rs. 50,000 ( amount put to tender), the period

shall be 3 months from the certified date of completion.

(b) for all works costing more than Rs. 50,000 and upto Rs.

crore (amount put tender), the period shall be 6 months from

the certified date of completion or one monsoon, whichever is

(c) for major projects costing more than Rs. 1 crore, the period

shall be 12 months from the certified date of completion

which should include one monsoon.

(d) For building works, the period specified in (a), (b) or (c)

above OR elapse of monsoon period following the certified

date of completion, whichever is later. For the purpose of

deciding the monsoon period, the 30th September may be

treated as the last date.

17. Time permitted to start parts of work Whenever a work is allotted by Engineering staff, whether

minor or major of part thereof of any amount, the contractor

shall be bound to start the works within 48 hours of intimation

of work. Communication done telephonically via SMS, Via

Whatsapp and through letter / E-mail shall be considered legal

and binding for the same. Failure of comply to start the works

in 48 hours of intimation as above by contractor the contractor

shall be levied penalty of (1) Rs.1000/- per day (for tenders

amounting upto 10 Lakhs), (2) Rs.2500 per day (for tenders

amounting above 10 Lakhs and upto 30 Lakhs), (3) Rs.5000 per

day (for all tenders amounting above 30 Lakhs). Three times

failures by contractor shall make contractor responsible to be

black listed unless and otherwise justified properly in writing /

binding within 15 days of last notice of penalty.

18. Compensation for Delay 10% of Remaining work (As per Circular)

19. Addendum/Corrigendum Addendum/Corrigendum If any Shall be Published 48 Hrs. Price

To the Final Submission Time And Date. The Same Shall From a

part Of Tender AndThe Same As to be Attached Along WithThe

Tender Document.

20. EPF Act As per Acoount Department circular no-37 Date:09/08/2018

21. GST GST will be paid extra by AMC/Authority at prevailing rate to

the Contractor.

Contractor'sSigAdd.C.E.(West Zone)

Financedept. circular No-03 Dt.28-04-2023

(A) Guarantee issued by following banks will be accepted as SD/EMD on permanent basis.

All nationalizedBanks

(B) Guarantee issued by following banks will be accepted as SD/EMD for the period up to March -31,

The Validity cut-off date in the GR is with respect to the date of issue of bank Guarantee irrespective of the

date of termination of Bank Guarantee.

(I)Commercial Banks :-

1. A U Small Finance Bank

3. City Union Bank

4. DBS Bank India Limited

6. Equitas Small Finance Bank

7. Federal Bank

10. IndusInd Bank

11. Kotak Mahindra Bank

13. Standard Chartered Bank

14. Tamilnadu Mercantile Bank

15. Ujjivan Small Finance Bank

(II)Co-operative and Rural Banks OfGujarat :-

1. The Ahmedabad Mercantile Co-Operative Bank Ltd

2. The KalupurCommerical Co-operative Bank Ltd

3. Nutan nagrik Sahakari Bank Ltd

4. Rajkot nagrik Sahakari Bank Ltd

5. Saraswat Co-Operative Bank

6. Saurashtra Gramin Bank

7. The Gujarat State Co-Operative Bank

8. The Mehsana Urban Co-operative Bank Ltd

9. The Surat District Co-Operative Bank

10. The Surat Peoples Co-Operative Bank

Seal and Signature of the Bidder Add. City Engineer

AHMEDABAD MUNICIPAL CORPORATION

Invitation for Bid (IFB)

1. The AHMEDABAD MUNICIPAL CORPORATION,(hereinafter called “the Employer”) invites sealed

Tender document from reputed and qualified bidders for the construction of Works detailed in

the Table below:-

Sr. Name of Works Approximate Earnest Completion

No. value of works (Rs.) Money Period

1 Desilting of drainage line work At Rs.80,00,000/- Rs.80,000/- 12 Months

Acher Gamtal Road, Parimal

Hospital Road, Visat to Rathi

Apartment Road, Visat to

Tapovan Circle Road, Jawahar

Chowk Circle to Sarvottam Nagar

Road, Ramnagar Road and the

surrounding areas by CCTV

camera method in Sabarmati

ward ,West Zone.

2. Interested bidders shall download the tender documents from AMC’s website

www. amcnprocure.com/ www.nprocure.com.

3. Tender (a complete set of bidding document) fee shall be Rs.2400.00 in the form ofDemand

Draft / Pay Order from any Nationalised Bank in favour of MUNICIPALCOMMISSIONER,

AHMEDABAD, payable at Ahmedabad, which shall be non refundable.

4. All bids must be accompanied by Earnest Money Deposit of the amount specified for the Works

in the above Table payable at Ahmedabad and drawn in favour of MUNICIPAL COMMISSIONER,

AHMEDABAD, payable at Ahmedabad,. Earnest Money Deposit will have to be specified in

Clause 2 of Financial Condition.

5. Physical submission must be delivered ToAsst. Manager (Admin) ,2nd

Floor,Dr.Ramanbhai Patel Bhavan, Usmanpura, Ahmedabad Municipal Corporation, W.Z.

Office, Ahmedabad-380013.

6. The Bids will be opened at the office of Assistant Manager/ Dy.C.E. (W/Z) office) ,2nd

Floor,Dr.Ramanbhai Patel Bhavan, Usmanpura, Ahmedabad Municipal Corporation, W.Z.

Office, Ahmedabad-380013.

in the presence of bidders or their representatives who choose to attend. In the event of the

specified date of bid submission/opening being declared a holiday for the Employer, the bids

shall be received /opened on the next working day at the same place and the same time.

TERMS & CONDITIONS

( A) INSTRUCTIONS TO BIDDERS (ITB)

( B ) GENERAL TERMS & CONDITIONS

( C) FINACIAL TERMS & CONDITIONS

( D ) SAFETY/TECHNICAL SPECIFICATION/MAIN CONDITION

AHMEDABAD MUNICIPAL CORPORATION

TERMS & CONDITION

( A) INSTRUCTIONS TO BIDDERS (ITB)

1. Procedure for Submission of Tender

a). The Bidder should quote the price bid in tender form before schedule time Tender Document, tender

fee & EMD (Draft /DD) and all other enclosures as asked in tender.

b).The bidder shall submit the following Tender documents physically in hard copy in two separate

envelope (marked as “original” and other marked as “Duplicate”) in schedule time by RPAD/

Speed Post/ Hand Delivery in duplicate.The Bid envelopes shall be marked as follows:-

 Tender Document

 Registration certificate of class

c).The envelope shall be addressed to the Employer at the following address:

Asst. Manager (Admin)

2nd Floor,Dr.Ramanbhai Patel Bhavan,

Usmanpura, Ahmedabad Municipal Corporation,

W.Z. Office, Ahmedabad-380013

d).Bear the following identification:

“TO BE OPENED ONLY IN PRESENCE OF THE EVALUATION COMMITTEE”

e). Indicate the name and address of the bidder.

If the outer envelope is not sealed and marked as above, the Employer will assume no responsibility

for the misplacement or premature opening of the bid.

f).All information has to be typed or hand written legibly. All pages of the Bid have to be initialed by the

g) All The Bid Document Essentially Needs to be Properly binded/steppled

2. Assessment of Submission

2.1 The Employer will open the technical bid ofphysically submitted document of all the bids received

for the package (except those received late) containing the sealed Tender volume and other

enclosures then announce the names of bidders in the presence of bidders or their representatives

who choose to attend on the date and time mentioned in the NIT In the event of specified date of

bid opening being declared as a holiday for the Employer, the Tender will be opened at the

appointed time and location on the next working day.

2.2 In Physical submission, Bidders detailed and tender fee, E.M.D. shall be opened first. The Employer

at the opening will announce bidder’s names, , the presence/or absence of EMD, the amount and

validity of EMD furnished with each bid, is valid registration and such other details, as the Employer

may consider appropriate.

2.3 The Employer will determine whether the bid is accompanied by the required EMD.

2.4 If the EMD furnished does not conform to the amount and validity period as specified in the

Invitation for Bid and has not been furnished in the form, the bid shall be rejected by the Employer

as non-responsive and the Tender volume will be returned to the bidder.

2.5 Subject to confirmation of the EMD by the issuing bank, the Tender volume accompanied with

valid EMD will be taken up for further evaluation. In case, the Bank does not confirm the EMD, the

bid shall be rejected as non-responsive and no further evaluation carried out.

2.6 The tender volume will further be examined to determine whether the bid has been properly

signed, meets the eligibility and qualification criteria, has the required available bid capacity, is

accompanied by the requisite certificates, undertaking and other relevant information specified in

the bid documents and is substantially responsive to the requirement of the bidding documents

and provides any clarification for ascertaining the correctness of the information/details.

2.7 If the Tender volume is not substantially responsive, it will be rejected by the Employer and will not

subsequently be made responsive by correction or modification or withdrawal of the

nonconforming deviation or reservation.

3. Evaluation and Comparison of Tender volume

The Employer will evaluate and compare only those Tender volumes which are determined to be

substantially responsive in accordance with Clause 2and qualified for award of Contract in

accordance with Clause 5(General Terms and Condition).

4. Procedure for Tender Opening

Received copies of tender in physical form with in schedule time, will be open on schedule date and

time. In the event of specified date of bid opening being declared bidders who qualify the criteria

then bidder bid will be considered for opening of price bid.

5.1 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 loSouthEvaluated Bid

Price, provided that such bidder has been determined to be (i) eligible in accordance with the

provisions of Clause 3(General Terms and Condition); and (ii) qualified in accordance with the

provisions of Clause 5(General Terms and Condition).

6. Notification of Award

6.1 Prior to expiration of the period of bid validity prescribed by the Employer, the Employer will notify

the successful bidder by cable/fax and confirmed by registered letter that his bid has been

accepted. This letter shall name the sum which the Employer will pay the Contractor in

consideration of the execution, completion and maintenance of the Works by the Contractor as

prescribed by the Contract.

6.2 The notification of award will constitute the formation of the Contract.

7.A successful Bidder has to deposit security deposit / Bank Guarantee as per Circular after receiving

letter of Indent. Time limit of work will commence from the date of issue of work order.

8. Clarification of Bids

8.1 To assist in the examination, evaluation and comparison of bids, the Employer may, at his

discretion, ask any bidder for authentication the correctness of the information/details furnished by

him in his bid. Such request by the Employer and the response by bidder shall be in writing or by

8.2 Subject to above clause, no bidders shall contact the Employer on any matter relating to his bid

from the time of bid opening to the time contract is awarded.

8.3 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 his bid.

9.1 Information relating to the examination, clarification, evaluation and comparison of bids and

recommendations for the award of a 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 his bid.

10.1 The bidder is advised to visit and examine the Site of Works and its surroundings and obtain for

itself on its own responsibility 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

bidder’s own expense.

10.2 The bidder and any of its personnel or agents will be granted permission by the Employer to enter

its premises and lands for the purpose of such inspection, but only upon 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

death or personal injury, loss of or damage to property and any other loss, damage, costs and

expenses incurred as a result of the inspection.

11.0 Cheklist for submition of Technical Bid.

11.2 valid Registration Copy.

11.3Valid E.M.D

AHMEDABAD MUNICIPAL CORPORATION

TERMS & CONDITION

( B ) GENERAL TERMS & CONDITIONS

1. Scope of Bid

1.1 The Ahmedabad Municipal Corporation hereinafter called "the Employer" invites Tender document

for the construction of works (as defined in these documents, hereinafter referred to as "the Works")

detailed in the table given in the IFB.

1.2 The Works consist of: “as Above"

Source of Funds

1.1 The expenditure on these Works will be met by AHMEDABAD MUNICIPAL CORPORATION.

2.Bidder shall have completed

(i) one similar work costing 80% of the Package cost or more, OR

(ii) two similar work costing 50% of the package cost or more OR

(iii)Four similar work costing 25% of the package cost or more in

last Seven year.

3.Eligible Bidders

3.1Bidder Must own 2 number high capacity vaccum machine and 4 number silt carrying pay loader for

this tender .bidder should have owner ship of the machine.

3.2 Bidder Must own 1 number CCTV inspection system with indendentlyoperabale PTZ of own

3.3 Bidder shall have experience of 5 km of de-silting of sewer diameter 300 to 1800 mm or above in

India in last 5 years (ending on the date of opening of this bid) in any Municipal

Corporation or in any Government organization or any such body with satisfactory

certification of client.

3.4 This invitation for bids is open to bidders who has necessary bid capacity and who meet the

following requirements:

 A bidder shall not be under a declaration of ineligibility for corrupt or fraudulent practice.

 The bidders shall have a registration with State PWD, and/or CPWD for "D" class and or

equivalent. If contractor is not registered with AMC in the relevant class, on award of contract

he shall be required to register himself with AMC within 3 month's time.

Bidders shall provide such evidence of their continued eligibility satisfactory to the Employer, as the

Employer shall reasonably request.Subject to Submition of SuccsesfulSubmition as per Clause –II of

4. Eligible Material, Equipment and Services

4.1 At the Employer's request, the bidder having offered the loSouthevaluated financial bid may be

required to provide evidence of the origin of materials, equipment, and services to the satisfaction of

4.2 For purposes of Sub Clause 4.1, "origin" means the place where the materials are mined, grown,

produced or manufactured; similarly for equipments and from where the services are provided.

5. Qualification of the Bidder

To be qualified for award of Contract, bidders shall:

a) Submit a written power of attorney authorizing the signatory of the bid to commit thebidder; and

AH M ED A BA D M U N IC I PAL CO R PO RA T I O N

E NG I NE ER IN G D E P A RTM E N T

Name of Work :-"Desilting of drainage line work At Acher Gamtal Road,

Parimal Hospital Road, Visat to Rathi Apartment Road, Visat to Tapovan Circle

Road, Jawahar Chowk Circle to Sarvottam Nagar Road, Ramnagar Road and the

surrounding areas by CCTV camera method in Sabarmati ward ,West Zone.

Th e d et a i ls o f r e in f o r c e m ent o f R.C .C . w o r k sh al l b e as p er d es ig n a n d in s t r u c t io n s o f C it y

Th e con t r acto r s h all h a ve t o m a i n t a in a c co u n t o f st ee l , c e m e n t a n d oth e r m a te r i a l s t h at

m a y b e b r ou gh t b y h i m o n si t e . Th is ac co u n t s h al l b e r egu l a r l y m ai n t a i n e d an d k ep t op en

Mix i n g o f co n cr et e s h a ll b e d o n e b y con c r et e m i xe r m ach i n e . A rr an ge m e nts o f b i n d in g

vi b r at o r f o r R. C .C . w o r ks if r eq u i r ed s h a ll h a ve to b e m ad e b y t h e c o n tr a cto r .

Th e c o n t r a cto r sh a l l b e r e m a i n r es po n s ib l e f o r Wo r k m en ’ s c o mp e n s at i o n if a n y w h en su ch

c as e o c cu r s. T h e c on t r a ct o r sh a l l ar r a n g e f o r m e d a m p e r s an d in n ig h t an d he s h all b e

res p o ns ib l e f o r a n y d am a g e o f l if e a n d l i m b o r p ro p er t y i f an y h ap p en , d u r in g th e e xe cu t io n

of w o r k. In c as e o f d is p ut e f o r u n s e en o r o v er l o o k e d i te ms t h e dec is i o n of t h e c i t y

co n t r ac tor at t h is r i s k a n d c o st .

Fo r mi x in g mo r t ar ei th er f or m a s o nr y o r f o r p l ast er o r f o r a n y o t h e r p u r p os e c o n tr ac to r

In o n cas e h e s h a ll b e a l l o w ed to mi x t he m o r t a r ei t h e r o n f l o o r o r an y f i n i she d s u rf a c es.

sh a ll p ay th e w a t er ch ar ges as p er w a t er m et er .

If an y e x t r a it e m c r op s u p d u r i n g t h e p r o g re s s o f w o r k t h e s a m e sh a l l b e c a rr ied o u t b y t h e

co n t r ac tor a nd he sh a l l b e p ai d at t h e r at e f ix e d b y C . E. / Ad d l. C i t y En gi n e er as p er th e r at e

an al ys is b as ed o n cu r r e n t m ar ket r at es .

If in t h e i nt er est o f t h e C o r p o r a ti o n i t i s n e ces s ar y t o ch an g e ei th e r an y s it e o r t h e d es i gn

th e r a te q u o t ed b y hi m an d n o c l a i m f o r e x t r a f o r su b s e qu en t c h an ges m a y b e en t e r t a in ed .

Th e c u b i c a l c o n t en ts o f t h e c e men t b a g sh al l b e t a k e n as 1 - 2 0 cf t. Pe r b ag a n d t h e

co n t r ac tor s s h a l l h a ve t o p r e p a re t h e m e asu r es b o x es a cc o rd i n g t o t h is m e asu r e .

or w h en te ch n ic a l r eq u i r e m ent s ar e su c h t h a t c o n ti n u i t y o f w o r k sh o ul d b e m ai n t a in e d a nd

co n t r ac tor an d w h ich wi ll b e p a i d a t t h e ti m e o f f i n al b i l l.

C on t r ac t or w il l b e f ul l y res p on s i ble f o r c om p l i a nc e of t he v ar i ous pre vi si on und er c on t r a ct

Th e t en d er f o r t h e w o r k s h a ll r e m ain op en f o r a pe r i o d ( 1 20 ) d a ys f ro m t h e d a t e o f o p en in g

th e Mu n i c ip al C o rp o r at i on , th e Mu n i cip al C o r po r at io n sh a l l w it h o u t p r ej u d i c e to a n y r igh t

or r e m e d y b e a t l i b er t y to f o rf ei t in f u l l t h e s aid e a r n es t m o n e y a b s ol u t el y .

As p er C i r cu l ar N o. MC R 2 1 7 6 ( 9 6 ) 2 4 1 8 ( i i) G H H d at ed 3 1 - 0 3 - 7 7 is s ued b y G o ve rn m en t o f

Gu j ar at c o n tr a ct ors ar e r e qu es t e d t o p r o du c e t h ei r q u a r r y m a ter i a ls f o r c o n s tr u c t i o n w o r k

app l i c a bl e as p er A MC R u les .

Co n tr acto r h as t o m a ke hi s o w n a r r a n g e m en t f o r p ro c ur e m en t o f s t ee l a n d c e me n t .

iii ) In cas e o f t e nd er d o w n l o ad e d f r o m w eb si t e , t e nd er f e e & E M D s h o u l d be su bm i tt ed

iv) Co n d it i on o f f o r m B 1 St a nd ar d Sp ec if i ca t io n of m at er i a l & co d e o f p r a ct ic e w ill b e

app l i c ab le .F o r m B1 & B 2 c an b e is a va i lab l e in web s it e. C on d it io n o f F o r m B -1 F or

D ef ec t l iab i li ty C lau s e is n ot app li c ab l e Fo r t hi s Wo r k .

for B u i l di n g W or k s book a v a i l a bl e from Gujar at Book Stores (Pvt.) Ltd. Sector-

21,Gandhinagar,D E T A IL E D G E N E R A L T E C H N I C A L S P E C IF I C A T I O N S can b e av ai l a b l e f r o m

Co n t r a ct o r ’s S i gn a t ur e Ad d . C it y En g in eer

General information

All individual firms must complete the information in this form. Nationality information shall be

provided for all owner(s) or applicant(s) that are partnership or individually owned firms.

1 Name of firm:

2 Head office address With Contact no.:

3 Local office address (if any) With Contact no.:

4 Telephone/ Contact With name :

5 E-mail address:

6 Place of incorporation/registration:

7 Year of incorporation/registration:

 Additional information regardinglitigation, debarment, arbitration, etc.

AuthorisedSigneture Bidder

5.3 Disqualification

Even though the Bidders may meet the above criteria, they are subject to be disqualified for any of the

following reasons:

a) Misleading or false representation in the forms, statements and attachments submitted and included

b) Record of poor performance such as abandoning the work, rescinding of contract for which the

reasons are attributable to the non-performance of the contractor, consistent history of litigation

awarded against the applicant or financial failure due to bankruptcy.

c) Has been identified by the Employer as poor performer in implementation of ongoing AMC works.

d) The bidder fill (tender) in percentage rate above or below and total amount (both in figures and

d) The bidder fill (tender) in percentage rate above or below and total amount (both in figures and

words) only in E-Tender (Online) Not to fill in hard copy of Tender documents

5.4 Debarment/Black listing

Notwithstanding the above, the Employer may debar or blacklist any of the bidder(s) for their

misleading or false representations in the forms statements etc. for the period to be decided by the

6. One Bid per Bidder

6.1 Each bidder shall submit only one bid per contract package either by himself or as a partner in a

joint venture. A bidder who submits or participates in more than one bid for a contract package will be

7. Bidding Documents

The bidder is expected to examine carefully the contents of all the above bid documents. Failures to

comply with the requirements of bid documents will be at the bidder's own risk. Pursuant to Clause

bids which are not substantially responsive to the requirements of the bidding documents will be

8. Language of Bid

The bid, and all correspondence and documents related to the bid exchanged between 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 accurate

translation of the relevant passages in the English language, in which case, for purposes of

interpretation of the bid, the English translation shall prevail.

9.1. Unless stated otherwise in the bidding documents, the Contract shall be for the whole works as

described in bidding documents, based on the percentage rate amount in the Bill of Quantities

submitted online by the bidder.

9.2. The bidder shall fill (tender) in percentage rate above or below and total amount (both in figures

9.2. The bidder shall fill (tender) in percentage rate above or below and total amount (both in figures

and words) for overall items of the Works provided in the Bill of Quantities

10. Bid Validity

10.1 Bids shall remain valid as per Instruction to Bidders (ITB) after that deadline date for bid

submission specified in Clause. The Employer as non-responsive shall reject a bid valid for a

shorter period.

10.2 In exceptional circumstances, prior to expiry of the original bid validity period, the Employer may

request the bidders to extend the period of validity for a specified additional period. The request

and the responses thereto shall be made in writing or by fax. A bidder may refuse the request

without forfeiting his bidder agreeing to the request will not be required or permitted to modify

his bid but will be required to extend the validity of his Bid Security for the period of the

extension, and in compliance with Clause 2 ( Financial Terms & Conditions) in all respects.

11. Format and Signing of Bid

11.1 The bidder shall prepare two copies of the documents comprising the bid as described in

Instructions to Bidders.

11.2 The bid shall be typed or written in indelible ink and shall be signed by a person or persons duly

authorized to sign on behalf of the bidder.

11.3 The bid shall contain no alterations, omissions or additions, except those to comply with

instructions issued by the Employer, or as necessary to correct errors made by the bidder, in

which case the person or persons signing the bid shall initial all such corrections.

11.4 All witnesses and sureties shall be persons of status and probity and their full names,

Occupations and addresses shall be printed below their signatures.

12. Deadline for Submission of Bids

Bids must be received by the Employer at the address specified above not later than the time and date

specified in the NIT.

Any bid received by the Employer after the deadline for submission of bids will be returned unopened

14. Signing of Agreement

At the same time that the Employer notifies the successful bidder that his bid has been accepted, the

Employer will direct him to submit the Performance Security and attend the Employer's office on a date

determined by the Employer for signing the Form of Agreement.

15. The selection process will lay high emphasis on the ability and competency of contractors to do high

quality work within the given time schedule.

16. The onus of providing, all necessary company / project related information, in appropriate manner

and medium, so as to demonstrate the competency of the bidder and to allow proper evaluation, will

rest entirely on the Bidder.

17. All clause shall be operative from the date of issue of work order and up to the expiry of original and

extended time limit.

18. Legal Condition:-

 Corrupt or Fraudulent Practices

The Employer will reject a proposal for award if he determines that the Bidder recommended for

award has engaged in corrupt or fraudulent practices in competing for the contract in question. The

Employer will declare the firm ineligible, either indefinitely or for a stated period of time, to be

awarded a contract by AHMEDABAD MUNICIPAL CORPORATION if it at any time determines that

the firm has engaged in corrupt or fraudulent practices in competing for the contract, or during

 “corrupt practice” means behavior on the part of officials in the public or private sectors by

which they improperly and unlawfully enrich themselves and/or those close to them, or induce

others to do so, by misusing the position in which they are placed, and it includes the offering,

giving, receiving, or soliciting of anything of value to influence the action of any such official in

the procurement process or in contract execution; and

 “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 Borrower, and includes collusive

practice among bidders (prior to or after bid submission) designed to establish bid prices at

artificial non-competitive levels and to deprive the Borrower of the benefits of free and open

 Municipal Commissioner reserves the rights to reduce/increase the scope of work and contract

without assigning any reason thereof.

 If Ahmedabad Municipal Corporation is convinced that the Bidder has resorted to material

misrepresentation or provided fraudulent information / statement, the said Bidder will be liable for

disqualification / rejection at any stage.

 Proof for fulfillment of eligibility criteria should be submitted along with Tender volume. If the

Tender volume is submitted without valid documents and without proof of eligibility criteria it will

 Those who do not meet with the eligibility criteria need not submit the Tender document.

 Tenders, which do not fulfill all or any of condition or are submitted incomplete in any respect or

are conditional tenders, will be rejected.

 Contractor shall be responsible to obey all Labour Laws, Environmental and Safety Laws.(the

existing laws as well as framed from time to time). Any penalties laid due to violation of such laws

shall be directly deducted from the contractor's outstanding.

19. Administrative Conditions:-

 Safety and Signage

Contractor has to arrange for the complete safety of the persons working for project, users of the

road i.e. public and vehicles also. All the arrangements of traffic drums, metal / fiber cones, traffic

blinkers, traffic signs as per design, safety tapes etc. to be arranged at site. Necessary florescent

marking on traffic signs to be provided so that it should be visible at night. During night working

hours safety in charge personnel shall be provided with florescent jackets. This shall be Provided at

no extra cost by the bidder under attaché with specified in the tender documents under payable

 Liaison with local authority for electrical connections for the AMC

The contractor is responsible for liaison with local authority for change in supply connection or new

connection on behalf of AMC. It includes filling the necessary application to power Supply

Company, follow up and getting the supply, filling the necessary test reports to the power supply

company. All official fees including security deposits and other expenses shall be of initially paid by

the contractor. AMC may support to get the temporary connection and may at its diseretien get

the same converted to permanent connection at the same of AMC if desired do,and contractor

shall as no extra cost support the same. In this case AMC my be as the remaining cost subject to

20 :- CONTINGENT FEE:

 The Contractor warrants that he has not employed any person to solicit or secure the contract

upon any agreement for a commission, percentage, brokerage or contingent fee. Breach of this

warranty shall give the Municipal Commissioner the right to cancel the contract or to take any

other measure as the Municipal Commissioner may deem fit. The warranty does not apply to

commissions payable by the contractor to establish commercial or selling agent for the purpose

of securing business.

 No officer, employer of the Municipal Corporation be admitted to any share or part of this

contract or to any benefit that may rise there from.

21:-OVERPAYMENT AND UNDERPAYMENT:

Whenever any claim fourths payment of a sum to the Municipal Corporation arises out of or

under this Contract against the contractor the same may be deducted by the Municipal

Corporation from any sum then due or which at any time thereafter may become due to the

contractor under this contract and failing that under any other contract with the Municipal

Corporation or from any sum due to the contractor with the Municipal Corporation (which may be

available with Municipal Corporation), or from his retention money, or he shall pay the claim on

demand. The Municipal Corporation reserves the right to carry out post payment audit and

technical examination of the final bill including all supporting vouchers, abstracts, etc.

The Municipal Corporation further reserves the right to enforce recovery of any over payment

when detected not withstanding the fact that the amount of the final bill may be included by the

If as a result of such audit and technical examination any over payment is discovered in respect of

any work done by the Contractor or alleged to have been done by him under the contract, it shall

be recovered by the Municipal Corporation from the contractor by way of all the means

prescribed above or if any under payment is discovered by the Municipal Corporation, any

amount due to the contractor under this contract or under payment may be adjusted against any

amount then due or which may at any time thereafter become due before payment is made to

the contractor from him to the Municipal Corporation on any other contract account whatsoever.

If, at any time, there should be evidence of any lien or claim for which owner might have become

liable and which is chargeable to the contractor, the owner shall have the right to retain out of

any payment then due or thereafter to become due an amount sufficient to completely

indemnify the owner against such lien or claim or if such lien or claim be valid the owner may be

or become due and payable to the contractor. If any lien or claims remaining, unsettled after all

payments are made, the contractor shall refund or pay to the owner all money that the latter may

be compelled to pay in discharging such lien or claim including all cost and reasonable expenses.

 Contractor shall not sub-let the work without permission of the authority.

 Joint venture and subcontracting shall not be allowed under this tender

Addendum or corrigendum conveying any change or correction in respect of the work shall form the

part of the contract documents. The full consideration shall be given to such addendum or corrigendum

before submission of tender duly filled in by the contractor. Therefore, the contractors shall have to

kindly refer the tender for such addendum or corrigendum published by AMC through its website

www.amc.nprocure.com&www.nprocure.com 48 hours prior to the deadline of submission of the

tender. Tenderers shall verify the number of addendum issued and enclose the same with the tender

documents , failing which the tenders shall be liable for rejection and no any complaint in respect to

this shall be entertained under any circumstances.

Seal and Signature of the Bidder Addl.City Engineer

Date: (West Zone)

AHMEDABAD MUNICIPAL CORPORATION

TERMS & CONDITION

( C ) FINACIAL CONDITION

1. Cost and Currencies of Bidding

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.

Currencies of Bid and Payment

 The rates and the prices shall be quoted by the bidder entirely in Indian Rupees

 All payments including advances, if any, shall be made in Indian Rupees.

2.Earnest Money Deposit :-

2.1 Bank guarantees (and other instruments having fixed validity) issued as surety for the bid shall be

valid for 28 days beyond the validity of the bid.

2.2 The EMD of the unsuccessful bidders, except for L1,L2 and L3 bidders, will be returned as promptly

as Early as possible as but not later than 28 days after the expiration of the period of bid validity.

2.3 The EMD of the successful bidder, along with second and third loSouthtenders, will be returned

when the bidder has furnished the required performance security and signedthe agreement.

2.4 Earnest Money Deposit may be forfeited

a) if the bidder withdraws his bid during the period of bid validity;

b) in the case of a successful bidder, if the bidder fails within the specified time limit to

i) Furnish the required Performance Security or

ii) Sign the Agreement.

3.(A) SecurityDeposit :-

Within 15 (fifteen) Working days of the date of receipt of the Letter of Intent (LOI) the successful

bidder shall deliver to the Employer, a Initial Security Deposit Shall be submitted as per C.E.

Circular.in the form of a Bank Guarantee/ DD/Locle MICR cheque for an amount equivalent to 5%

(five percent) of the Contract Price .

Failure of the same shall make the contractor liable for any penalty as decided by AMC. At

present a policy is framed by Audit department of AMC to charge 4% interest for the balance

period and discontinuity period.

The Security Deposit to be provided by the successful bidder in the form of a bank guarantee as

per format shall be issued as per Memorendum of work.

(E) Retention :-

a). Retention @ 2% of the value of work done will be deducted from each RA bill. It will be released

along with release of payment of Final Bill.

4. Approved Bank: - As per Annexer -I

5. No advance for machinery or materials will be given.

6. Mobilization advance will not be given.

7. Quantities in B.O.Q. may vary up to any extent and contractor shall not claim any extra rate for the

8. Penalty: -10 percent of the balance work on Date of Completion Date or extended time limit. &

As per AMC Rule

9.Tax, Duties on Materials

All charge on account of Octroi ,excise duties, terminal tax, sales tax. Service tax, VAT (exculding

GST) etc. on material procurement or any other component for the works from any source shall be

borne by the contractors.

Special Clause:

As per construction works welfare cess Act – 1996 non-refundable one percent of tender amount shall

be deducted against works welfare cess.

Seal and Signature of the Bidder Addl.City Engineer

Date: (West Zone)

General terms & conditions

1. Tenderer should be registered in PWD/ in Govt. R&B /CPWD / AMC or equivalent registration with any

other state Govt. or institutions. Copy of registration should be attached with tender document.

Tenderer who was not registred in AMC must be get registred in panel of approved AMC contractor.

2. A booklet of FORM B-1 of Gujarat State Roads & Building Department / Water Resources Department

with the correction slips made up to 15-08-1999 may be referred. (only English version) Clause No. -2

liquidated damages for delay shall be overrule by A.M.C.’s M.C.circular no.- 9 dt. 18/05/2012.

3. In the specification “as directed" / "approved" shall be taken to mean "as directed / "approved" by the

Engineering in charge.

4. Wherever a reference to any Indian standard appears in the specifications, it shall be taken to mean as

reference to the latest edition of the same of force on the date of agreement.

5. In "Mode of measurement" in the specifications wherever a dispute arises in the absence of specific

mention for a particulars point / aspect, the same in the relevant Indian Standards shall be referred to.

6. All measurement and computations, unless otherwise specified shall be carried out nearest to

the following limits :-

i) Length, width and depth, Height 0.01 Meter

ii) Areas 0.01 Sq.mts.

iii) Cubic contents 0.01 Cu. mts.

In recording dimensions of work, the sequence of length, width and height (Depth) or thickness shall be

7. Definite particulars covered in the items of work, though not mentioned or elucidate in its

specifications shall be deemed to be included therein.

8. Approval of the samples of various materials given by the Engineer in charge or AMC's Consultant shall

not absolve the contractor from the responsibility of replacing defective materials brought on site or

materials used in the work found defective at a later date. The contractor shall have no claim to any

payment or compensation whatsoever on account of any such materials being rejected by the Engineer

9. The contractor’s rate for the item of work shall be for the work completed in all respect.

10. All materials including those of electrical shall be got approved by the Engineer in charge/ Architect

before using them in the work.

11. Materials as and when rejected by the Engineer in charge or AMC's Consultant shall be removed from

the site of work within 24 hours.

12. All work shall be carried out in a manner as per standard engineering practice.

13. All tools, templates, machinery and equipment for correct execution of the work as well as for checking

lines, levels, alignment of the works & all precautionary measures during execution shall have to be

kept in sufficient numbers and in good working condition at the site of the work. All excavated trench

shall be kept covered with barricade and caution tap.

14. Special modes of the construction not adopted in general Engineering practice, if proposed to be

adopted by the contractor shall be considered only if the contractor provided satisfactory evidence that

such special mode of construction and completion of work to the required strength and quality.

Acceptance of the same by the Engineer in charge shall not however, absolve the contractor from the

responsibility of any adverse effect and concordance of adopting the same in the course of exaction or

completion of the work.

15. The contractor shall be responsible for observing the rules and regulation imposed under the "Minor

Mineral Act", and such other laws and rules prescribed by the Government from time to time.

16. All necessary safety measures and precautions (incl. those laid down in the various relevant Indian

Standard) shall be taken to engrave the safety of men, materials and machinery on the work and also of

the work itself.

17. Quantity measured in the tender is approximate. It may increase or decrease looking to the quantum of

actual work for which no any claim shall be entertained by A.M.C.

18. Contractor shall have to execute extra item if required or as per need of AMC.

19. The work in general shall be carried out as per standard specifications of the relevant items to be

executed & as per the instruction of Engineer in charge & as per the guidance of AMC's Consultant for

20. The general terms & conditions of the contract shall be applicable & shall be binding on the contractor.

The contract agreement shall have to be executed between AMC & the agency to which work is

awarded for execution.

21. For Tender amounting below 10 lakh LOI shall be issues within 3 days after received of sanctioned

tender and resolution.Within 10 days contractor has to submit SD and after reciveing SD Work order

shall be issue to contractor and the time limit shall be start from the date of issue of the written work

order to the contractor.

For Tender amounting above 10 lakh LOI shall be issues within 3 days after received of sanctioned

tender and resolution .Within 15 days contractor has to submit SD and after reciveing SD work order

shall be issue to contractor and the time limit shall be start from the date of issue of the written work

order to the contractor.

Security Deposit of 5% of sanctioned tender amount shall be deposited by pay order / demand

draft / cheque or Bank Guarntee of nationalized bank/scheduled bank only. Contractor shall have to

sign contract paper with AMC.The contractor shall be fined 4% of interest per year for delay in

submission of S.D and shall be deducted from contractor’s bill.

22. In case of any ambiguity in specifications mentioned in this tender, the interpretation given by M.C. Or

His DesignetedOfficerwill be final and binding to the Contractor.

23. The contractor shall take no advantage of any apparent error or omission in drawing or specification

and the Engineer -in-charge shall make such corrections and interpretations as necessary to fulfill the

intent of the plants and specifications.

24. The quantities of items in BOQ (Bill of Quantities) may vary in case of necessity arises.

25. All prevailing taxes/duties chargeable by State Govt./Central Govt. and the Municipal Corporation. will

be payable by the contractor.

26. No any kind of price rise / price escalation / price variation for cement, steel or labour shall be paid.

27. Contractor is requested to see the site physically before tendering. He is also requested to quote the

rates keeping in view of all the points mentioned in relevant pages of tender documents.

28. Water Supply: The contractor shall arrange at his own cost, a suitable supply of piped water for the

construction of the works and provide a satisfactory supply of potable water for drinking, washing,

sanitation and cleaning down. The contractor will be responsible for all the costs where applicable of

connection, meter installation, water consumed, water required for testing purposes, disconnection

and the laying, maintenances and ultimate removal of any distribution system around the site.

29. Electricity:Electric supply will be made available at the site by the Contractor and the contractor must

make his own arrangements with the Corporation and Electricity Supply Authorities and with other

contractors to connect and to take a supply from such services, paying all costs in connection

The Contractor shall be entitled to use supply Electricity as may be available on the site for purpose of

the work and shall pay such charges as is fixed by the appropriate supply Authorities.

In case there is any delay in supply of power site of any interruption or fault in the power during the

work. No compensation shall be paid for idle labor staff, machineries and for use of diesel operating

sets etc. as the case may be.

30. Tenders shall submit all the valid/certified documents in support of their initial/eligibility criteria

mentioned above along with the bid. They shall have also to submit the income tax clearance certificate

and solvency certificate.

31. No advance such as secured advance machinery advance, mobilization advance or materials advance

32. The contractor shall get the electrical works executed through the authorized Government approved

licensed electrical person or firm in appropriate category in accordance to contractual provisions.

33. The electrical works shall be carried out strictly in accordance with the directives issued by Engineer in

34. Contractors shall not have any dispute or claim for any kind of compensations

(i) If the quantity stipulated in the tender items varies or the scope of work changes & thereby total

amount of work increases/ decreases.

(ii) If the work gets delayed/ postponed for some administrative/ technical decision what so ever.

35. In case of any dispute, decision of Municipal Commissioner shall be final and binding on the

36. Tenders which do not fulfill all or any of conditions or are submitted incomplete in any respect will be

rejected. Municipal Commissioner reserves the right to increase/decrease the scope of work. No any

claim to that effect shall be entertained. The Municipal Commissioner also reserves the right to reject

any or all the tenders without assigning any reason thereof.

37. The contractors are requested to quote their rates considering above tender conditions.

38. The contractor shall have to execute the contract agreement after received work order.

Even though in special case, If work is not started because of monsoon or any other special

reason (like site is not available and due to unavoidable circumstances arise), after evaluation of

situation the actual date of starting of work will be consider after approval of Dy.M.C. (Southzone)

39. The Contractor shall not claim for increase or decrease in the quantity of the BOQ item or the scope of

40. The R.A bill / final bill payment shall be made as per the latest A.M.C policy / circular for the work done

by the contractor.

41. Conditional tenders will not be accepted.

Signature of contractor with seal Additional City Engineer (West Zone)

Date Ahmadabad Municipal Corporation

AHMEDABAD MUNICIPAL CORPORATION

ENGGNIERING DEPARTMENT

GENERAL SPECIFICATION

Time limit for the work shall be 12 monthsafter the order to start the works. Progress of work should

be in proportion to time limit. The details of reinforcement of R.C.C. work shall be as per design and

instructions of Add. City Engineer and his order will be considered final.

The contractor shall have to maintain account of steel, cement and other materials that may

be brought by him on site. This account shall be regularly maintained and kept open for inspection by

Municipal Staff. Watering of all the items shall be as per instructions otherwise no payment shall be

made to contractors. Mixing of concrete shall be done by concrete mixer machine. Arrangements of

binding vibrator for R.C.C. works if required shall have to be made by the contractor.

The contractor shall be remain responsible for Workmen’s compensation if any accident. The

contractor shall arrange for barricading at night and arrangement of Pagi at night to direct the traffic.

He shall be responsible for any damage to public. If any incident happen, during the execution of work.

In case of dispute for unseen or overlooked items the decision of the Dy. City Engineer shall be final.

The contractor shall have to give site clean of all rubbish during the work and at the time of completion

of work and hand over the site with final finishing of the work as directed. All the rejected materials

shall be removed from site within 24 hours by contractor at this risk and cost. Debris shall have to cart

daily from site.

For mixing mortar either for masonry or for plaster or for any other purpose contractor

shall have to prepare through of bigger size and mix the mortar in the required proportion. In

oncase he shall be allowed to mix the mortar either on floor or any finished surfaces. The

contractor shall have to make his own arrangement for water required for the work.

If any extra item crops up during the progress of work the same shall be carried out by the contractor

and he shall be paid at the rate fixed by Add.C.E. as per the rate analysis based on latest SOR or if item

is not available in SOR than based on current market rates. In case of extra item decision of Add. City

Engg. shall remain final regarding rate.

If in the interest of the Corporation it is necessary to change either any site or the design of the

propose work the contractor shall carry out the same at his quoted rates without charges any extra

and the contractor will have to carry out the works and he will be paid at the rate quoted by him. No

claim for extra rate for subsequent changes in site and design is entertained.

The cubical contents of the cement bag shall be taken as 1-20 cft. Per bag and the contractors shall

have to prepare the measures boxes according to this measure.

Octroi exemption passes shall not be given for any materials required for the work. Contractor will be

fully responsible for compliance of the various provisions under contract Act. 1970 and the Rules

framed the to under.

The tender for the work shall remain open for a period (180) days from the date of opening of the

tenders for this work and that the tenderer shall not be allowed to withdraw on modify the offer on his

own during the period. If any tenderer withdraw or makes any modifications or addition in the terms

and conditions of his tender not acceptable to the Municipal Corporation the Municipal Corporation

shall without prejudice to any right or remedy be at liberty to forfeit in full the said earnest money and

black list the contractor.

If work is not started within specified time limit the penalty as per rule & tender condition delay of

start shall be recovered separately from the immediate bills payable to the contractor. Contractor has

to make his own arrangement for procurement of steel and cement.

Contractors should note the following conditions carefully:-

i) Conditional tender shall not be accepted.

ii) All tenders are to be submitted in duplicate without which the tenders are liable to be

iii) In case of tender downloaded from website, tender fee & EMD should be submitted in form of

iv) Condition of Form - B1 Standard Specification of material & code of practice will be applicable.

Form B1 can be is available in website. Specification shall be as per ' R& B Dept. - Govt. of

Gujarat booklets of Building Works & and Road Works Specifications published by Gujarat

Book Depot, Sector-21. Gandhinagar.

v) All the works Should be done as per specifications specified in Table. Item shall be executed

AS PER SITE REQUIREMENTS AND CONDITIONS AND INSTRUCTIONS GIVEN BY ENGG-

IN CHARGE. All the Specifications should be considered as R & B S.O.R & All Electrical Item

works should be done as specified in table. The works should be done as per Instruction of

Engineer In Charge. All the Specifications related to electrical works should be considered as

Per R & B Electrical S.O.R. The Make and Work Metholody of All of the above items specified

in above tender Will be the Final Decision of Engineer In Charge OrAdditonal City Engineer.

vi) Important Note:-

As well as Considered Item Specifications as Per Item Given, not by serial number, the specifications of

items which are not mentioned in BOQ Item, Specifications should be considered as per AMC

Sor Current Approved Rates for Civil and Electrical Works, as per Available on Site of

Ahmedabadcity.gov.in All the Specifications should be Considered as per Schedules Rates of R

& B Division of both civil and Electrical Works. Hence it an ARC Tender All the Quantity Would

Vary as per Instruction of Engineer in Charge. No Rate would be given Extra for Increase or

Decrease in the Quantity of The BOQ Scheduled Items.

CONTRACTOR'SSIGNATURE ADD.CITYENGINEER

& STAMP (West Zone)

Detailed Technical Specifications

D1:- SAFETY PROVISIONS

1. Suitable scaffolds shall be provided for workmen for all that cannot safely be done from the

ground, or from solid construction except such short period work as can be done safely from

ladders. When a ladder is used, an extra mazdoor shall be engaged for holding the ladder

and if the ladder is used for carrying materials as well, suitable footholds and handholds

shall be provided on the ladder and the ladder shall be given an inclination not steeper than

¼ to 1 (¼ horizontal and 1 vertical).

2. Scaffolding or staging more than 3.25 metres above the ground or floor, swung or

suspended from an overhead support, or erected with stationery support, shall have a guard

rail properly attached, bolted, braced, and otherwise secured at lSouth 1 metre high above

the floor or platform of such scaffolding or stating and extending along the entire length of

the outside and ends thereof with only such openings as may be necessary for the delivery

of materials. Such scaffolding or stating shall be so fastened as to prevent it from swaying

form the building or structure.

3. Working platforms, gangways, and stairways shall be so constructed that they do not sag

unduly or unequally, and if height of a platform or gangway or stairway is more than

metres above ground level or floor level, it shall be closely boarded, have adequate width

and be suitably fenced as described in 2 above.

4. Every opening in floor of a building or in a working platform shall be provided with suitable

means to prevent fall of persons or materials by providing suitable fencing or railing with a

minimum height of 1 metre.

5. Safe means of access shall be provided to all working platforms and other working places.

Every ladder shall be securely fixed. No portable single ladder shall be over 3 metres in

length. Width between side rails in a rung ladder shall in no case be less than 30 cm for

ladder upto and including 3 metres in length. For longer ladders, this width shall be

increased by at lSouth 6 mm for each additional 30 cm of length. Uniform step spacing shall

not exceed 30 cm.

6. Adequate precautions shall be taken to prevent danger from electrical equipment. No

material on any of the sites shall be so stacked or placed as to cause danger or

inconvenience to any person or the public. The Contractor shall provide all necessary

fencing and lights to protect public from accidents and shall be bound to bear expenses of

defense of every suit, action or other proceedings at law that may brought by any person for

injury sustained owing to neglect of the above precautions and to pay all damages and costs

which may be awarded in any suit, action or proceedings to any such person or which may

with the consent of the Corporation be paid to compromise any claim by any such person.

7. Excavation and Trenching : All trenches, 1.5 metres or more in depth, shall at all time be

supplied with at lSouth one ladder for each 30 metres in length or fraction thereof. Ladder

shall be extended from bottom of trench to at lSouth 1 metre above surface of the ground.

Sides of a trench which is 1.5 metres or more in depth shall be stepped back to give suitable

slope, or securely held by timber bracing, so as to avoid the danger of sides collapsing.

Excavated material shall not be placed within 1.5 metres of edge of trench or half of depth of

trench, whichever is more. Cutting shall be done from top to bottom. Under no circumstance

shall undermining or undercutting be done.

8. Demolition : Before any demolition work is commenced and also during the process of the

(a) All roads and open area adjacent to the work site shall either be closed or suitably

(b) No electric cable or apparatus which is liable to be a source of danger over a cable or

apparatus used by operator shall remain electrically charged.

(c) All practical steps shall be taken to prevent danger to persons employed, from risk or fire

or explosion, or flooding. No floor, roof, or other part of a building shall be so over-loaded

with debris or materials as to render it unsafe.

9. All necessary personal safety equipment as considered adequate by the Engineer shall be

available for use of persons employed on the site and maintained in a condition suitable for

immediate use, and the Contractor shall take adequate steps to ensure proper use of

equipment by those concerned.

(a) Workers employed on mixing asphaltic materials, cement and lime mortars/concrete shall

be provided with protective footwear, hand gloves and goggles.

(b) Those engaged in handling any material, which is injurious to eyes, should be provided

with protective goggles.

(c) Those engaged in welding works shall be provided with welder’s protective eye-shields.

(d) Stone breakers shall be provided with protective goggles and protective clothing and

seated at sufficiently safe intervals.

(e) When workers are employed in sewers and Manchinholes, which are in use, the

Contractor shall ensure that Manchinhole covers are opened and Manchinholes are

ventilated at lSouth for an hour before workers are allowed to get into them.

Manchinholes so opened shall be cordoned off with suitable railing and provided with

warning signals or boards to prevent accident to public.

(f) The Contractor shall not employ men below the age of 18 and women on the work of

painting with products containing lead in any form. Whenever men above the ages of

are employed on the work of lead painting, the following precautions shall be taken:

(g) No paint containing lead or lead products shall be used except in the form of paste or

ready-made paint.

(h) Suitable facemasks shall be supplied for use by workers when paint is applied in the form

of spray or a surface having lead paint dry rubbed and scraped.

(i) Overalls shall be supplied by the Contractor to workmen and adequate facilities shall be

provided to enable working painters to wash during and on cessation of work.

10. When work is done near any place where there is a risk of drowning, all necessary

equipment shall be provided and kept ready for use and all necessary steps taken for

prompt rescue of any person in danger and adequate provision made for prompt first aid

treatment of all injuries likely to be sustained during the course of the work.

11. Use of hoisting machines and tackle including their attachments, anchorage, and supports

shall conform to the following :

(i) These shall be of good mechanical construction, sound material and

adequate strength and free from patent defects and shall be kept in

good repair and in good working order.

(ii) Every rope used in hoisting or lowering materials or as a means of

suspension shall be durable quality and adequate strength, and free

from patent defects.

11.1 Every crane driver or hoisting appliance operator shall be properly

qualified and no person under the age of 21 years shall be in charge

of any hoisting machine including any scaffold winch or give signals

11.2 In case of every hoisting machine and of every chain ring hook,

shackle, swivel and pulley block used in hoisting or lowering or as

means of suspension, safe working load shall be ascertained by

adequate means. Every hoisting machine and all gear referred to

above shall be plainly marked with safe working load. In case of a

hoisting machine having a variable safe working load, each safe

working load and the conditions under which it is applicable shall be

clearly indicated.. No part of any machine or of any gear referred to

above in this paragraph shall be loaded beyond safe working load

except for the purpose of testing.

11.3 In case of departmental machine, safe working load shall be notified

by the Engineer. As regards Contractor’s machine, the Contractor

shall notify safe working load of each machine to the Engineer

whenever he brings it to site of work and get it verified by the

12. Motors, gearing, transmission, electric wiring and other dangerous parts of hoisting

appliances shall be provided with efficient safeguards, hoisting appliances shall be provided

with such means as will reduce to the minimum risk of accidental descent of load adequate

precautions shall be taken to reduce to the minimum risk of any part of a suspended load

becoming accidentally displaced. When workers are employed on electrical installations,

which are already energized, insulating mats, wearing apparel such as gloves, sleeves and

boots, as may be necessary, shall be provided. Workers shall not wear any rings, watches

and carry keys or other materials, which are good conductors of electricity.

13. All scaffolds, ladders and other safety devices mentioned or described herein shall be

maintained in a safe condition and no scaffold, ladder or equipment shall be altered or

removed while it is in use. Adequate washing facilities shall be provided at or near places of

14. These safety provisions shall be brought to the notice of all concerned by display on a

notice board at a prominent place at the work spot. Persons responsible for ensuring

compliance with the Safety Provisions shall be named therein by the Contractor.

15. To ensure effective enforcement of the rules and regulations relating to safety precautions,

arrangements made by the Contractor shall be open to inspection by the Engineer or his

representative and the Inspecting Officers.

16. Notwithstanding the above provisions 1 to 15, the Contractor is not exempted from the

operation of any other Act or Rule in force.

17. Contractor shall fully responsible to provide safety measure / equipments necessary for

breaking the dummies constructed to plug the pipe inlet and outlet in the Manchinhole to

avoid any accident.

Note: - Contractor Shall follows the directions furnished by Gujarat High court as well as

Supreme court related to de-silting the sewerage pipe line &Manchinholes. He shall take care

of not lowering labour in the Manchinhole as well pipeline during the work. He shall fully

responsible for any accident if occurred during the work / contract period.

Signature of Contractor Add. City Engineer

Name : Ahmedabad Municipal Corporation

Company’s seal :

D2:-SAFE ENTRY AND WORKING IN SEWER LINES – GUIDELINES

SAFE WORK PRACTICE PRINCIPLES

1. Introduction

These general guidelines are intended to assist the Contractor in the development of

safe work practices. Where the risk assessment indicates that a particular hazard cannot

be present, the precautions to control that hazard do not apply. Remember that a

favorable history does not guarantee absence of hazard on this occasion.

2. Confined Space

“Confined Space”, in relation to a place of work, means a space of any volume which a

person may at any time enter or be allowed to be entered in which the atmosphere is

liable at any time to be oxygen deficient. This includes but not limited to pipes, sewers,

Manchinholes, tunnels, shafts, ducts, other similar sewerage installations and etc.

The Contractor shall develop acceptable work practices and safe entry procedures based

on the guidelines provided hereunder and the AMC’s safety code on safety precautions

to be observed during sewer desilting / lining work.

3. Notification to Work in Confined Space

The Contractor shall obtain an entry permit from the Engineer for each occupancy of any

confined space. The Contractor shall furnish all required details in an approved format to

the Engineer for permission to work in confined space at lSouth 24 hours prior to the

entry. Where prolonged work is involved, the permit must be renewed for each shift. An

incident, which substantially alters the condition of a confined space entry, requires

immediate evacuation and reassessment of the condition.

4. Air Quality and Ventilation

Contaminant control and effective ventilation are major factors influencing air quality in a

confined space. The ventilation must be adequate to clear pre-existing contaminated air

and maintain a respirable atmosphere during planned work. This ventilation may be

permanently installed or portable equipment used for this task. For general ventilation,

fresh air should be supplied to the workplace. Within the sewer system this creates an

environment, which displaces contaminated air in the immediate vicinity.

Where a task generates atmospheric contaminants in a specific area e.g. use of chemical

such as polyester resin, adequate local exhaust ventilation should be used to remove the

contaminants. Where failure of the mechanical ventilation system would result in

deterioration of air quality, the controls must be clearly tagged to prevent accidental

interference and the ventilation system monitored while the confined space is occupied.

Self-Rescuers must be carried whenever failure of the ventilation system or changes in

the working environment can create a contaminated atmosphere. The self-rescuer can

be a self-contained breathing apparatus, oxygen self-rescuer, or short duration self-

contained breathing apparatus, depending on the time taken to reach open air.

Note: Obtain occupational hygiene advice on the selection or performance of

ventilationsystem where this is not specified in the work practice or plant design.

Any regularly accessed confined space should be illuminated to AS 1680 or equivalent

with electrical installation to AS 3000 or equivalent. Portable lighting may be used to

supplement permanent lighting in the workplace. Temporary mains powered lighting

installed for a task must comply with the requirements of AS 2865 or equivalent Indian

Standards. Miners lamps, mounted on a safety helmet may be used as an alternative to a

hand held torch for personal illumination.

Unless portable lighting complies with AS 2380.7 or similar Indian Standard the

possibility of a flammable atmosphere must be eliminated by isolation, cleaning,

ventilation purging etc.

Where the confined space has been proclaimed as a flammable gas hazard area to AS

2430 or similar standard all fixed and temporary electrical installation must comply with

AS 2381 or equivalent standard. Torches and portable lights must comply with AS

or equivalent standard.

Illumination standards are: -

General Lighting: - 40 lux minimum, equivalent to a poorly lit

room Stairway Lighting: - 80 lux minimum

Task Lighting :- 240 lux minimum (normal workshop requirements)

6. Equipment usage, Standards and Maintenance

All confined space safety equipment as proposed in this tender documents shall also

meet the established international labour safety standards and be of appropriate

designed capacity for the proposed usage at sites. The equipment must be checked for

visible damage and correct operation before each use. Preventative maintenance must

be performed by trained, and where necessary, authorized persons at the intervals

recommended by the equipment manufacturers. The Contractor shall submit to the

Engineer evidence of such periodic check and maintenance of the equipment used for

confined space entry at every first week of the month.

7. Room to Work

When the constricted volume of a worksite prevents normal work postures and tool

movement, the need for special tools or frequent work rotation should be considered.

8. Control of Flooding

When a confined space is normally liquid filled, accidental return to service must be

prevented by double isolation e.g. insertion of suitable blanking piece, plugging with

inflatable plugs, temporary coffer dams as a second isolation in a Manchinhole or other

effective means.

9. Flow Control

Where a sewer is entered while flowing, rapid increase in flow must be prevented by use

of stop logs, isolation of pumping stations, weather watch and other means appropriate to

the sewer catchments. Adequate communication with the person responsible for flow

diversion must be maintained for the duration of the entry.

Where deep flowing water is present, use personal flotation devices. Safety harness and

lifeline and safety nets as appropriate to prevent drowning and washing away.

11. Fire and Explosion

Adequate precautions must be taken to minimize the risk of fire or explosion when

entering a confined space for any purpose.

12. Presence of Flammable Gas

The presence of flammable gas, flammable dust or the possibility of the presence of

airborne substances in flammable quantities may create a hazardous Area. Care shall be

taken by the authorized person to determine the presence of any such flammable

situation in the confined space before entry. Smoking or lighting any cigarette or box

matches in confined space shall be strictly prohibited. The flammable gases of concern

are methane, digester gas, vapours from flammable liquid, and vapours from trade waste

13. Manual Handling of Tools, etc.

Safe system of work should be followed to protect against falls of persons or objects and

crush by moving or falling objects.

Reverberation within a confined space can increase noise levels, especially if more than

one person is working. Heavy duty hearing protection may be required.

15. Vermin / Leptospirosis

All persons working in confined spaces should be aware of the leptospirosis hazard

presented by the presence of vermin. The presence of cockroaches etc. does NOT

indicate that the atmosphere is free of danger to health.

16. Standby and Communication

A member of the confined space work team is allocated the task of maintaining

communication with the members inside the confined spaces. This task may be rotated

among the members of the team. The Standby person must be trained and be physically

capable of providing the assistance and life support in an emergency and must have

sufficient proficiency in Hindi, English, Urdu and Punjabi languages to promptly

communicate information by radio or telephone when required.

While acting as stand-by, this person must not enter the confined space or leave the

vicinity unless relieved from this duty. A standby person is needed for all confined space

entries. The Safe System of Work must indicate the process for communication from the

confined space to the standby e.g. 2 way radio ‘man down’ alarm line of sigh etc.

17. Fitness Assessment

An assessment of fitness, including cardiovascular and respiratory health, is required to

ensure that all persons entering confined spaces, or acting as the stand-by person, can

comply with the physical demands of the job, without risk to their health.

18. Emergency Rescue and First Aid

No person shall enter any confined space, even in an emergency, without first ensuring

all safety requirements have been met. A safety emergency plan may assist in a safe,

speedy response in the event of an emergency.

All confined space work teams must be trained and equipped to sustain life and be able

to summon emergency help, provide first aid and assist emergency service personnel, if

Trained persons using supplied air breathing apparatus must only attempt rescue of

persons apparently overcome by toxic gases in a sewer or other confined spaces.

Stabilization of other injuries must be prioritized against the availability of breathable air.

19. Gas Detector

The Contractor shall engage an authorized person for gas monitoring and detection. This

person shall be trained to operate and response test gas testing equipment and is

authorized by management to perform the necessary tests to decide whether a category

2 or 3 confined space is fit to enter.

Gas testing can only be performed by persons trained in gas testing, using equipment

appropriate for the anticipated contaminants. This person can perform other duties

provided these do not conflict with the gas-testing task.

20. Specialist Gas Detector

This person has technical qualifications and acceptable training to operate and response

test gas testing equipment, including hydrocarbon detectors and detector tubes and

assesses portable ventilation systems. He is authorized by management to carry out

atmospheric testing to establish entry conditions for all confined space categories, and to

establish whether a Category 1 confined space can be re-classified to a Category 2. He

also performs tests to verify whether hot work is permitted in gas hazard areas.

Where possible, cleaning should be performed without entry to the confined space, even

if only preliminary cleaning is possible.

Particular attention should be given to the probability of releasing hydrogen sulphide

when disturbing microbial active sludge and sediments, which have accumulated in a

confined space. Supplied air respiratory protection shall be worn where such residues

exist and effective ventilation cannot be guaranteed. Continuous gas monitoring is

required even when supplied air respirator protection is used.

Hose couplings should be designed to resist accidental dislodging or loosening. Both the

operators and the standby person should be able to stop the flow of cleaning material

into the confined space.

Hydro jetting must be performed according to the relevant regulations. Where chemical

compound is used in within the confined space, the chemical compound should be

classed in the Material Safety Data Sheets as non-irritant to respiratory system, eyes and

skin. If this is not possible then appropriate respirator skin and eye protection must be

worn. Substance specific air monitoring may be required.

A visitor to a confined space is a person other than a contractor, who is not a member of

the Confined Space Work team. Visitors must be escorted and trained or inducted in the

necessary skills for that entry and shall sign an indemnity form before entry into a

confined space. No visitor shall be allowed to enter the confined space without prior

permission of Engineer.

23. Hazard Control

Hazards to be identified and controlled include but are not limited to access mechanical

and electrical isolation, flow isolation and control, drowning and engulfment, last known

contents, atmospheric contaminants, temperature extremes, security and public access.

24. Air Quality Standard For Entry

The acceptable limits of some gases in confined spaces are:

Gas/Vapor Present Acceptable Limits

a. Oxygen Content (o) 19.5% to 23.5% by volume

b. Flammable Gas/Vapor 5% of Lower Explosive Level (LEL)

c. Hydrogen Sulphide (H2S) 5 ppm

d. Carbon Monoxide (CO) 10 ppm

25. Carbon Monoxide (CO)

Carbon monoxide is colorless, odorless, flammable and toxic. Its common sources are

fire, motor vehicle exhausts and cigarette smoke.

This gas is a chemical asphyxiant and is readily absorbed by the hemoglobin in the

blood. Then hemoglobin is unable to transport oxygen to the body tissues and the body

becomes oxygen starved. These effects are more pronounced with hard work or for

heavy smokers. Symptoms include headache (50-200ppm), nausea (400ppm), irregular

heartbeat (1200ppm). Collapse and death (2000ppm).

The entry permit limit is 10 Parts Per Million (ppm). Maximum with an IDLH value of

ppm. (IDLH-Immediately Dangerous to Life and Health)

Note: Some gas detecting machine sensors are cross sensitive, H2S being detected by

theCO cell and vice versa. Alarm by either sensor requires evacuation and re-evaluation

of the safe system of work.

26. Flammable Gas/Vapor

A gas or vapor that will burn when mixed with air in certain proportions and ignited.

The mixture, which contains the lSouthamount of flammable gases that will explode, is

called the Lower Explosive Limit (LEL). The mixture, which contains just enough Oxygen

to let the flammable gas explode, is called the Upper Explosive Limit (UEL). The

flammable range varies for gases and vapors.

Many of these have toxic effects when inhaled and a Workplace Exposure Standard has

been issued to protect workers from these Gas/Vapor. The Contractor shall obtain

relevant Workplace Exposure Standard (WES) for use in the site.

Gas / Vapour Flammable Range 5% LEL WES

in % (FOR ENTRY PERMIT

Butane 1.9 – 8.5 950 ppm 800 ppm

n-Hexane 1.2 – 6.9 600 ppm 50 ppm

Methane 5 – 15 2500 ppm Axphyxiant

Petrol 1.3 –6 650 ppm 900mg/cum

Trichloroethylene 12.5 – 90 6259 ppm 50 ppm

27. Hydrogen Sulphide (H2S)

Hydrogen Sulphide is a colourless, toxic and flammable gas, which usually has the odour

of rotten eggs. In sewerage systems it is usually derived from the action of bacteria on

the sulphur compounds in anaerobic or old sewage. A small amount of sludge or slime in

wet wells or sewers will release a lot of H2S when disturbed.

After a few minutes exposure, the ability to smell hydrogen sulphide by a person is lost

and then hydrogen sulphide becomes more dangerous as its presence is no longer

obvious and the person could become an innocent victim.

It can sometimes be detected by odour at less than 0.1 ppm but can be readily detected

by odour at 4 ppm. More serious health effects include eye irritation (10 ppm), respiratory

irritation (50 ppm), headache, nausea, dizziness (200 ppm), collapse and death (700

The entry permit limits is 5 parts Per Million (ppm), Maximum with an Immediately

Dangerous to Life and Health (IDLH) value of 300 ppm.

Some gas detecting machine sensors are cross sensitive, H2S being detected by the CO

cell and vice versa. Alarm by either sensor requires evacuation and re-evaluation of the

safe system of work.

28. Methane (CH4)

The most common flammable gas found in sewers is methane. This mainly comes from

gas pipe leaks in the city’s gas distribution system. It can also be derived from the action

of anaerobic bacteria on rotting material. However a range of other flammable gases and

vapours may be encountered. These include LPG, petrol vapour and other solvents.

Digester gas, found in anaerobic sludge digesters on sewage treatment plants is a

flammable mixture of methane nitrogen and carbon dioxide.

Methane is a colourless, odourless gas. Although pure methane is slightly lighter than air

the relative density of methane / air mixture is similar to air entry permit range. Methane

is hazardous because of its flammability, i.e. between concentrations of 5% to 15% in air,

it may explode if an ignition source is present.

High concentrations of methane may result in oxygen deficiency. Injury or death result

from lack of oxygen not methane toxicity classifying methane as a simple asphyxiant.

29. Oxygen Content (O2)

Fresh air contains 20.9% oxygen, equivalent to a partial pressure of 211.8 hectopascal of

oxygen at sea level.

The readings obtained on a gas detection instrument in open air may vary depending on

instrument calibration and barometric pressure.

In a confined space, oxygen can be used up by bacteria in sewage or sludge, rusting of

iron fittings, burning (or welding) or displaced (pushed out) by other gases.

Breathing of air, which contains reduced oxygen results in increasingly serious health

effects. These range from impaired coordination and faulty judgment (12-16% O2) to

collapse and rapid death (less 6% O2).

Increased oxygen readings can only come from instrument error or by leakage from

oxygen cylinders, liquid oxygen tank, etc. High oxygen levels greatly increase fire

hazards, fires burn fiercely; oily clothing and hair can catch fire without an ignition source.

The entry permit levels are 19.5% to 23.5% by volume.

Parts per million (ppm)

Parts of gas or vapour per million parts of contaminated air by volume at 200C and 1 bar

Parts of substance per 100 parts of air, water

31. Other Atmospheric Contaminants

Entry, unless wearing air supplies breathing apparatus is not permitted unless

atmosphere contaminants are below the relevant 8-hour time weighted average (TWA)

Workplace Exposure Standard. This limit applies for all entries including brief exposures.

Entry wearing breathing apparatus is only permitted where the concentration of the

contaminant is within the protection factor of the breathing apparatus and below the IDLH

(Immediately Dangerous to Life and Health) value.

32. Sewer Gases

Air in contact with live sewage contains gases released from the sewer. For safe entry,

contaminated air must be replaced with clean air by ventilation of the confined space.

The resulting atmosphere must be confirmed by gas testing.

Discharge of untreated wastes, e.g. hypochlorites, electroplating effluent, acids may

result in generation of chlorine, hydrogen cyanide and other harmful gases some

distance from the original discharge.

33. Confined Space Categorisation

The confined space category is a guide to developing a safe system of work. The

confined space category may change to a more stringent level as a result of adverse

environmental factors or work produces contaminants. Alternatively it may change to a

less restrictive category if appropriate engineering upgrades, whether temporary or

permanent, are implemented.

1.1 Category 1 – Confined Space

Entry allowed only if flammable gas is below 5% of L.E.L. and other gases are within the

protection factor of the respiratory protective equipment used.

Visibility must be adequate

Personal Safety

o Wear specified protective clothing for the hazards.

o Wear safety harness.

o Use lifeline where appropriate.

Respiratory Protection

o Test air quality prior to entry by a Specialist Gas Detector.

o Ventilate to reduce contamination.

o Monitor air quality as directed by the Specialist Gas Director.

o Wear airline breathing apparatus with backup air supply OR wear self-

contained breathing.

Note: An Oxygen self rescuer is nor a backup for an airline used in contaminated

If the Category 1 confined space is a chemical storage tank, it can be reclassified to a

Category 2 or 3-confined space when the specialist gas detector confirms that the

chemical has been cleared from the interior.

Sewer, wet wells etc can be reclassified by a specialist gas detector to a lesser confined

space only when an approved safe system of work is employed. This safe system of

workmust provide for demonstrated control of airborne contaminants and other hazards

in the workplace, to provide conditions equivalent to a Category

Hot work requires control of fire and explosion hazards and may require air supplied

breathing apparatus to control fumes irrespective of the confined space category. A Hot

word permit is required in addition to the normal entry permit.

1.2 Category 2 – Confined Space

Entry allowed only if all gases are within entry permit limits. Personal Safety

o Wear specified protective clothing for the hazards.

o Wear safety harness.

o Use lifeline where appropriate.

Respiratory Protection

o Test air quality prior to entry

o If air quality test fails, refuse entry until reason found and rectified, or revert to

Category 1 entry conditions.

o Ensure adequate ventilation

o Monitor air quality during entry.

o Carry oxygen self rescuer

Note: Standby person must have SCBA readily available.

Hot work requires control of fire and explosion hazards and may require air supplied

breathing apparatus to control fumes irrespective of the confined space category. A Hot

word permit is required in addition to the normal entry permit. A hydrocarbon check by a

“specialist gas detector” is required unless the environment can be upgraded to Category

1.3 Category 3 – Confined Space

Entry permit required (unless using a posted entry procedure for routine operation of the

facility) for each shift that the structure be occupied.

 Wear protective clothing specified for the hazards.

Respiratory Protection

 Test air quality prior to entry

 If the proposed work can generate airborne contaminants, arrange ventilation.

Respiratory protection and / or air quality monitoring as appropriate.

Hot work required hot work permit and control of fumes.

If air quality test fails, revert to Category 1 entry conditions or refuel entry until

reasons found and rectified.

1.4 Category 4 – Confined Space

Follow facility safety procedures.

 Wear protective clothing specified for the hazards

Respiratory Protection

 Evacuate when alarms advise

Hot work requires control of fumes.

Separate Permit(s) required for chemical cleaning and / or hot work. If evacuation alarm

sounds, evacuate following site emergency procedure. Reoccupy as a Category

confined space.

Generic Entry Summary

Category Category Category Category

Entry Permit Yes Yes Yes Yes

Standby Person Yes Yes Yes* *

Communication to remote Yes*

Protective Clothing Yes* Yes* Yes* Yes*

Safety Harness Yes Yes

Lifeline/Fall arrester Yes Yes

Airline and backup Yes*

Specialist gas tester Yes

Gas tester Yes Yes Yes

Gas monitoring Yes Yes

Ventilation Yes* Yes* Yes Yes

*Appropriate choice given in Safe Work practice for the task

# Required by Standby Person

34. Entry Permit Format

A general entry permit for working in sewerage works is given below as an example. The

contractor shall develop his own format of the entry permit form and submit it for the

approval of Engineer.

35. Maintenance of Equipment

This equipment must be maintained as per manufacturer’s recommendation and records

kept of this maintenance.

Compressed air bottles must be refilled by a source, which warrants that the air meets

quality standards of AS1715 or equivalent.

Air from air compressors must be treated to meet quality standards of AS1716 and tested

periodically to demonstrate compliance.

All respiratory protection system must be used in accordance with AS1715.

36. Gas Detecting Machines

The instrument must be operated according to the manufacturer’s instructions.

The instrument must be checked for correct functioning using a test gas (‘Response

Check’) every day when the instrument is used to check possibly contaminated

If the instrument is used less frequently, it can be response checked each time it is used.

The following equipment must meet the relevant section of AS1716 or any equivalent

A. Self contained breathing apparatus.

B. Oxygen Set (Rescuer).

C. Airline compressed air breathing apparatus.

All workmen should use all the same-model of this equipment for interchangeability.

Obtain professional advice for selection of airline breathing apparatus and compressed

air self-rescuers.

Portable gas detection instruments must meet the following requirements.

Manual of Practice

Sr.No. Gas Monitored Range Required Resolution Required

1 Oxygen 1% - 30% Resolution 1%

2 Flammable Gas 1% - 100% of LEL Resolution 1% of LEL

3 Hydrogen Sulphide 1 – 50 ppm Resolution 1 ppm

4 Carbon Monoxide 1 – 400 ppm Resolution 1 ppm

ENTRY PERMIT FOR CONFINED SPACES

(Required for an confined space entries)

CONFINED – SPACES CATEGORY [ ]

Is a hot word permit also required? Y/N

If Yes. Permit No.

1. SITE AND TASK INFORMATION

Contractor’s Visitor’s

Description of work to be Requested

2. ISOLATION OF CONFINED SPACE 5. PERSONNEL PROTECTIVE

( ) Water/ sewer flow isolation/control ( ) Supplied air respirator

( ) Harmful substance present ( ) Oxygen self rescuer

( ) Warning notices, locks or tags in place ( ) Safety harness

( ) Other (specify) ( ) Safety line

( ) other protective clothing/equipment

3 AIR QUALITY …………………………………………..

Oxygen (19.5% - 23.5%) 6. OTHER PRECAUTIONS

Hydrogen Sulphide (<10 ppm) ( ) Warning notices / barricades in place

Flammable gas (<5% LEL) ( ) Smoking prohibited

Carbon monoxide(<30ppm) ( ) Rescue system in place

Other specify ( ) Emergency rescue trolley available

Limit ( ) Result……………… ( ) Other precaution (Specify)

Ventilation ……………………………………………

Operating / provide…………………………. ……………………………………………

Time and date of 7. CONFINED SPACE ENTRY PERMIT

Response test date for gas testing This confines space in my opinion safe for

entry and work under the listed indications.

Machine…………………………………….

Monitor while occupied: Yes/No. ( ) The work teak is trained and equipped for

Additional category1 Safe entry valid

Substance checked ( identify and limits) From……………………………am/pm

……………………………………………. Responsible

Monitoring delegated to gas tester (Y/N) 8. SIGNING OUT

Condition………………………………… ( ) All persons have left the confined space

and no further entry is permitted on this

Specialist gas tester………………………..

From……………………………am/pm

4. CHEMICALS ( to be used in the confined 9. OBLERVED FAULTS / INCIDENTS

D3:- SAFETY PRECUATIONS TO BE OBSERVED DURING CLEANING, DESLITING AND LINING

18. Special Direction to Tenderers

1.1 Precautionary measures to be taken be the contractor for the safety and welfare of the labours

connoted with desilting and lining work.

To begin with the work of desilting, initiall six consecutive Manchinholes are

to be opened, two on the up-stream and two on the down-stream side of the two

Manchinholes, on the actual stretch to be cleaned or desilted. The Manchinholes should be

kept open for one hour prior to the starting of cleansing operations and should be so kept

open during the whole duration of cleaning operations. This to be done for allowing the

combustible gases to escape naturally. No lighted matchsticks should be thrown in the

Manchinhole. This may cause fire and explosions endangering the life of the workmen and the

pedestrians. This may also damage to the sewer and other adjoining utility services, if any

Jalis should be placed over all the opened Manchinholes to prevent pedestrians etc. from

falling in. tripod stands with flags it should be written in white bold letters “Danger Manchinhole

1.2 When working at night, lantern fitted with red globe and lights shall be hung from the tripod

stand. Each Manchinhole kept open should be guarded by one labourer or C.I. heavy cover

with holes exactly fitting up to the fame and capable of taking the load of lorry should be

placed over the Manchinhole, so that top of the cover is flush with the road surface. The

contractor without any extra cost shall provide the covers. The same should be removed and

replaced with regular Manchinhole cover when the work is closed.

1.3 The contractor should keep sufficient number measurement rods. The measurement rods

shall be made out of solid bamboo/M.S. rod of sufficient length fixed with M.S. flat 150 mm X

150 mm X 6 mm (6”X6” and ¼”) thick at one end and fitted with point at other end, to take

measurement of water and silt.

1.4 Manchinholes shall be kept open for minimum one hour to allow foul gases to escape and

simultaneously there should be forced purging with the help or an are blower to completely

clean the air in the sewer.

1.5 Sewage levels shall be checked in the Manchinholes and the same should not be more then

1.6 Wet lead acetate paper shall be inserted in the Manchinholes which should nit turn even light

brown or black. If the lead acetate paper turns light brown or black, then the Manchinhole

shows the presence of Hydrogen Sulphide Gas (H2S) and in that case this test shall be

repeated after every ten minutes till positive result is achieved. The sensitivity of lead acetate

paper should be ascertained to suit and detect the minimum allowable concentration (MAC)

for long-term exposure.

This paper should be held as low as possible in the Manchinhole atmosphere. In spite or long

waiting for about one and half hour, if he lead acetate paper continues to show negative gas

detector shall be used for half an hour. Thereafter gas detector shall be used to check the

presences of gases and the worker shall be allowed only after it is confirmed that the condition

inside the Manchinhole is safe for man entry.

Whenever necessary, or where the sewer line is heavily silted or there are chances of gas

eruption, the person entering the Manchinhole shall be provided with gas mask or breathing

apparatus (respiratory system) and hand blower or mechanical blower be used during the

desilting operation. In every case use of gas monitor in working condition is mandatory. In

additional to this, the conventional methods lie lead acetate paper test etc. be done. The gas

monitors should be accurately calibrated after regular intervals to maintain their reliability.

After the lead acetate paper test, a lighted safety lamp shall be inserted in the Manchinhole,

which should burn smoothly. If not, it shows the presence of Carbon monoxide (CO) and in that

case precautionary measures as stated in sub-pare (g) should be followed.

After the presence of combustible gases are ruled out the following further tests is required to

be carried out for the presence of oxygen.

A lighted naked candle placed at the center of the candle testing equipment covered with glass

on three sides should be lowered down slowly. If the flame is extinguished or flickers, it

indicates the presence of carbon monoxide and or carbon dioxide. If it burns for not less than

five minutes uniformly, it indicates the presence of oxygen, which is required for breathing for

the workman working inside the Manchinhole.

19. Working Inside the Manchinhole

After all these tests are carried out successfully, particular care should be taken where sewer is

heavily silted, the scum and sullage should thoroughly be stirred and disturbed by means of

long bamboos/ G.I. rod from the top of the Manchinhole to allow entrapped gases within silt

pockets to escape before allowing the labourers to go down into the Manchinhole.

The depth of water should be measured and the labourer should be asked to get down when

the level of water is less then 450 mm (18”). Before the labourer is allowed to get down inside

the Manchinhole, he should be asked to apply barrier creams all over the body as a

precautionary measures to safe guard against itching and burning sensation. Safety belt should

be tied around his waist and chest when the labourers are getting down, another man at the

top should hold the other end of the rope. Not less then two people should be allowed to work

inside the Manchinhole at a time.

If the labourers who are working inside the Manchinhole show slight discomfort, they should be

asked to come up or pulled up. The labourers who are working inside the Manchinhole should

give jerks every few minutes to signify that everything is okay with them.

After getting satisfactory test result and after taking precautionary measures as stated above,

the worker shall be allowed to descend or enter in the Manchinhole. The workers entering the

Manchinhole shall be provided with wadder suit, hand gloves protective head gears and head

lamp. If the wadder suits are not available the worker shall be provided with Barrier Creams

with germicide to be applied to their entire body to prevent harmful effect due to contact with

harmful bacteria and germs.

The worker entering the Manchinhole shall wear Harness belt around his waist. In spite of the

Manchinhole entry tests being carried out, there are chances of eruption of poisonous gasses

in the silt. If the worker finds any difficulty in breathing initially or during the work then he should

be taken out immediately by means of harness belt. Where the sewer line is heavily silted or

there are chances of gas eruption, gas mask shall be used while entering the Manchinhole and

also during desilting.

On completion of the work all Manchinholes shall be checked and it should be ascertained that

the same are properly closed.

20. Safety (General)

Proper ventilation shall be maintained in the Manchinhole and sewer line being desilted. Hand

operated or mechanical blower should be preferable used for half an hour to one hour before

entering the sewer line even after getting the safe working condition, while desilting sewer lines

where accumulation of silt is heavy. While the blowers shall be operated continuously during

the desilting of sewer lines which are heavily silted or susceptible to gas generation.

While carrying out desisting, the sewer lines of man-entry size, the contractors shall use blower

during the entire period. This would not only ensure safe condition but also ensure comfortable

working condition for the worker and would in turn increase his performance and output.

In some Manchinhole where sewage is falling over workman or causing obstruction, plugging

the upstream sewer will be allowed temporarily without any charges, provided the Contractor

ensures that the upstream sewer line does not overflow. The plugs shall be removed

immediately after the work has been completed.

The Contractor shall, as far as possible, use mechanical process for cleaning and desilting

sewer lines and progressively minimise manual process of desilting so that entry of workers in

the sewers for purpose of cleaning and desilting shall be avoided.

A list of various safety tools, overhauls and safety equipment.

• Harness Belts

• Protective Head Gear with Lamp

• Breathing apparatus

• Thigh and Wadder Suits

• First Aid Box

• Barrier Creams with Germicides

• Other related safety items, as directed by the Engineer

No worker of Contractor shall be allowed to enter into the Manchinhole for cleaning and

desilting the sewer lines unless all the safety tools, shackles and equipment are at site and the

worker is equipped with personal safety gear such as gumboot, wadder suit, headgear, head

lamp and, harness belt etc.

The Contractor should keep “first aid box at the site of works”.

One vehicle with the safety equipment such as breathing apparatus, diver suit, air blower,

escape set etc., shall be made available at each Desilting. The same vehicle shall have other

facility such as first aid kit, provision for eye wash.

21. Welfare of the Workman Engaged For Desilting / Lining Works

No person below the age of 18 years shall be employed for carrying out cleaning and desilting

work of the sewerage system / sewer lines.

Adequate safety measures shall be taken by the Contractors.

The Contractor should impart training to the supervisory staff, all the workman entrusted with

the task of sewer rehabilitation.

A detailed medical checkup of all the workers must be immediately undertaken. This check up

should include a full clinical examination, proper blood tests, routine radiological tests,

pulmonary functions test, a psychiatric evaluation and other specialized tests wherever

necessary. Special emphasis must be given to the

study of the respiratory system, the eyes and the skin problems.

Each worker engaged in cleaning the desilting of the sewer lines / Manchinholes, shall be

medically examined once a year and shall not be engaged, if he is suffering from any of the

diseases such as respiratory, skin, eye-problems, infections, cardiovascular, spinal, psychiatric

nature etc. He should not be engaged for cleaning and desilting work inside the Manchinhole or

sewer lines till he is cured.

Whether a person is suffering from any of the above mentioned diseases or not shall be

certified by any Municipal Doctor. Similarly, the contractors engaged in cleaning and desilting

operation, shall get their workers, employees medically examined and shall not employ any

worker who is found to be suffer from any of the above mentioned ailments.

The workers should be provided with vaccination against certain diseases commonly prevalent

among sewage workers due to the nature of their work.

First Aid Box properly stocked including washing bottle to wash skin and eyes, should be kept

at the site of work.

Proper arrangement should be made to get treatment expeditiously, including facilities for

speedy admission and treatment in any nearby hospital to the work site. Location of the

hospital should be displayed at the site of work.

The Contractors engaged by AMC for sewer cleaning desilting and repair work, should take out

workmen insurance policy at Contractor’s cost (individual or group) for workers engaged by him

for sewer cleaning and / or desilting or repairing.

The Contractor shall maintain washing, drinking water and toilet facility at each Chowky. If no

toilet is provided in the Chowky, it should be so located that the public toilet is available within a

distance of 300 m. The site Chowky should also be equipped with full first aid kit.

Contractor should provide carbolic soap at the rate of one cake for four days for washing

clothes that are used by workers. The workers should be asked to take bath after the work is

over. In cold seasons i.e. December to February, Contractor should supply sufficient fire wood

to workers for warming up after taking the bath.

22. Contractor’s Responsibility towards Welfare of the Workmen

A responsibility officer of the supervisory cadre of the Contractor should be physically present

at the site and he/she should ensure and document compliance of the guidelines under the

scheme for measures of safety and welfare of the workers and entry worthiness in the

Manchinhole. He / She should remain physically present throughout the operation and the onus

of compliance of these guidelines should lie on.

A log book should be maintained by him/her for giving the date and time, the names of

workers, place and other relevant particulars of stay in the Manchinhole etc. The said official

should hold a certificate of training from a Competent Body such as National Safety Council,

New Delhi Fire Brigade etc. in First-Aid and Emergency Measures. If the Supervising Officer is

not satisfied about the various requirements as specified in the above specification, then the

work should be stopped immediately.

List of the Contractor’s employees including their residential addresses, age, etc. is required to

be supplied by the Contractor in separate register.

If the Contractor has engaged 20 or more labourers, then the Contractor is required to be

registered under the Contract Labour Act and Inter-State Migrate Labour Act, wherever

Contractors should abide by all the rules and regulations in respect of labour laws prescribed

by the Government Authorities and submit the returns etc.

The workmen compensation should be paid to the Contractor’s employees as per the

provisions of Workmen’s Compensation Act.

Contractor should maintain a muster of all the labourer working at site and his supervisor

should prepare a triplicate copy of the same specifying the persons getting down the

Manchinhole. The Contractor shall send one copy to the Engineer and another copy shall be

kept in his office for his record. The copy should reach the Engineer on the day before 11 AM

without any extra cost.

The Contractor shall also ensure that the silt is transported within 24 hours to the Dumping

ground or to the site as directed by the Engineer. If the Contractor fails to remove the silt within

24 hours the same will be removed by the AMC at his risk and cost, after the Contractor has

been notified in writing.

The Contractor should not make the silt storage depot etc., near the water gully. If found that

the Contractor disregarded the above and caused blockage in the water gully, the AMC will

clean the gully at the risk and cost of the Contractor. Contractors shall located depots at places

All the silt removed from Manchinholes / chambers near bus stop or junctions should be

transported immediately to a place approved by the Engineer at say 100 meters from the

Manchinhole, and from where the same shall be transported to the approved dumping yard as

soon as possible.

The Contractor should sprinkle sufficient quantity of bleaching powder over the silt removed

site to prevent smell emanating from the silt.

No person other than the Contractor’s workers should be allowed to go inside the Manchinhole.

If it is found that any unauthorized person has entered the Manchinhole and injured or died the

Contractor will be solely and fully responsible for the consequences including damages etc.

claimed by the person or his heirs.

Plugging etc., if required to be done for stopping the flow or diverting the flow and pumping out

sewage to facilitate removal of the choke or for any other purpose connected with cleaning

work should be done by the Contractor without any extra cost.

Even though the Contractors takes all the precautionary measures and by chance any

workman is injured or dies due to negligence or otherwise the Contractor will be responsible for

the claims of damages by the workman or his heirs.

23. SAFETY PROVISIONS:-Suitable scaffolds shall be provided for workmen for all that cannot safely be

done from the ground, or from solid construction except such short period work as can be done

safely from ladders. When a ladder is used, an extra mazdoor shall be engaged for holding the

ladder and if the ladder is used for carrying materials as well, suitable footholds and handholds

shall be provided on the ladder and the ladder shall be given an inclination not steeper than ¼ to

1 (¼ horizontal and 1 vertical).

24. Scaffolding or staging more than 3.25 metres above the ground or floor, swung or suspended

from an overhead support, or erected with stationery support, shall have a guard rail properly

attached, bolted, braced, and otherwise secured at lSouth 1 metre high above the floor or

platform of such scaffolding or stating and extending along the entire length of the outside and

ends thereof with only such openings as may be necessary for the delivery of materials. Such

scaffolding or stating shall be so fastened as to prevent it from swaying form the building or

25. Working platforms, gangways, and stairways shall be so constructed that they do not sag

unduly or unequally, and if height of a platform or gangway or stairway is more than 3.25 metres

above ground level or floor level, it shall be closely boarded, have adequate width and be

suitably fenced as described in 2 above.

26. Every opening in floor of a building or in a working platform shall be provided with suitable

means to prevent fall of persons or materials by providing suitable fencing or railing with a

minimum height of 1 metre.

27. Safe means of access shall be provided to all working platforms and other working places.

Every ladder shall be securely fixed. No portable single ladder shall be over 3 metres in length.

Width between side rails in a rung ladder shall in no case be less than 30 cm for ladder upto and

including 3 metres in length. For longer ladders, this width shall be increased by at lSouth 6 mm

for each additional 30 cm of length. Uniform step spacing shall not exceed 30 cm.

28. Adequate precautions shall be taken to prevent danger from electrical equipment. No material

on any of the sites shall be so stacked or placed as to cause danger or inconvenience to any

person or the public. The Contractor shall provide all necessary fencing and lights to protect

public from accidents and shall be bound to bear expenses of defence of every suit, action or

other proceedings at law that may brought by any person for injury sustained owing to neglect of

the above precautions and to pay all damages and costs which may be awarded in any suit,

action or proceedings to any such person or which may with the consent of the Corporation be

paid to compromise any claim by any such person.

29. Excavation and Trenching : All trenches, 1.5 metres or more in depth, shall at all time be

supplied with at lSouth one ladder for each 30 metres in length or fraction thereof. Ladder shall

be extended from bottom of trench to at lSouth 1 metre above surface of the ground. Sides of a

trench which is 1.5 metres or more in depth shall be stepped back to give suitable slope, or

securely held by timber bracing, so as to avoid the danger of sides collapsing. Excavated

material shall not be placed within 1.5 metres of edge of trench or half of depth of trench,

whichever is more. Cutting shall be done from top to bottom. Under no circumstance shall

undermining or undercutting be done.

30. Demolition: Before any demolition work is commenced and also during the process of

13.1 All roads and open area adjacent to the work site shall either be closed or suitably protected.

13.2 No electric cable or apparatus which is liable to be a source of danger over a cable or

apparatus used by operator shall remain electrically charged.

13.3 All practical steps shall be taken to prevent danger to persons employed, from risk or fire or

explosion, or flooding. No floor, roof, or other part of a building shall be so over-loaded with

debris or materials as to render it unsafe.

31. All necessary personal safety equipment as considered adequate by the Engineer shall

be available for use of persons employed on the site and maintained in a condition

suitable for immediate use, and the Contractor shall take adequate steps to ensure

proper use of equipment by those concerned.

32. Workers employed on mixing asphaltic materials, cement and lime mortars/concrete shall be

provided with protective footwear, hand gloves and goggles.

33. Those engaged in handling any material, which is injurious to eyes, should be provided with

protective goggles.

34. Those engaged in welding works shall be provided with welder’s protective eye-shields.

35. Stone breakers shall be provided with protective goggles and protective clothing and seated at

sufficiently safe intervals.

36. When workers are employed in sewers and Manchinholes, which are in use, the Contractor shall

ensure that Manchinhole covers are opened and Manchinholes are ventilated at lSouth for an

hour before workers are allowed to get into them. Manchinholes so opened shall be cordoned off

with suitable railing and provided with warning signals or boards to prevent accident to public.

37. The Contractor shall not employ men below the age of 18 and women on the work of painting

with products containing lead in any form. Whenever men above the ages of 18 are employed

on the work of lead painting, the following precautions shall be taken:

20.1 No paint containing lead or lead products shall be used except in the form of paste or ready-

20.2 Suitable facemasks shall be supplied for use by workers when paint is applied in the form of

spray or a surface having lead paint dry rubbed and scraped.

20.3 Overalls shall be supplied by the Contractor to workmen and adequate facilities shall be

provided to enable working painters to wash during and on cessation of work.

38. When work is done near any place where there is a risk of drowning, all necessary equipment

shall be provided and kept ready for use and all necessary steps taken for prompt rescue of any

person in danger and adequate provision made for prompt first aid treatment of all injuries likely

to be sustained during the course of the work.

39. se of hoisting machines and tackle including their attachments, anchorage, and supports

shall conform to the following :

39.1 These shall be of good mechanical construction, sound material and adequate strength and

free from patent defects and shall be kept in good repair and in good working order.

39.2 Every rope used in hoisting or lowering materials or as a means of suspension shall be durable

quality and adequate strength, and free from patent defects.

40. Every crane driver or hoisting appliance operator shall be properly qualified and no person under

the age of 21 years shall be in charge of any hoisting machine including any scaffold winch or

give signals to operator.

41. In case of every hoisting machine and of every chain ring hook, shackle, swivel and

pulley block used in hoisting or lowering or as means of suspension, safe working load

shall be ascertained by adequate means. Every hoisting machine and all gear referred

to above shall be plainly marked with safe working load. In case of a hoisting machine

having a variable safe working load, each safe working load and the conditions under

which it is applicable shall be clearly indicated.. No part of any machine or of any gear

referred to above in this paragraph shall be loaded beyond safe working load except for

the purpose of testing.

42. In case of departmental machine, safe working load shall be notified by the Engineer. As regards

Contractor’s machine, the Contractor shall notify safe working load of each machine to the

Engineer whenever he brings it to site of work and get it verified by the Engineer.

43. Motors, gearing, transmission, electric wiring and other dangerous parts of hoisting

appliances shall be provided with efficient safeguards, hoisting appliances shall be

provided with such means as will reduce to the minimum risk of accidental descent of

load adequate precautions shall be taken to reduce to the minimum risk of any part of a

suspended load becoming accidentally displaced. When workers are employed on

electrical installations, which are already energized, insulating mats, wearing apparel

such as gloves, sleeves and boots, as may be necessary, shall be provided. Workers

shall not wear any rings, watches and carry keys or other materials, which are good

conductors of electricity.

44. All scaffolds, ladders and other safety devices mentioned or described herein shall be

maintained in a safe condition and no scaffold, ladder or equipment shall be altered or

removed while it is in use. Adequate washing facilities shall be provided at or near

places of work.

45. These safety provisions shall be brought to the notice of all concerned by display on a

notice board at a prominent place at the work spot. Persons responsible for ensuring

compliance with the Safety Provisions shall be named therein by the Contractor.

46. To ensure effective enforcement of the rules and regulations relating to safety

precautions, arrangements made by the Contractor shall be open to inspection by the

Engineer or his representative and the Inspecting Officers.

47. Notwithstanding the above provisions 1 to 15, the Contractor is not exempted from the

operation of any other Act or Rule in force.

48. Contractor shall fully responsible to provide safety measure / equipments necessary for

breaking the dummies constructed to plug the pipe inlet and outlet in the Manchinhole to

avoid any accident.

Note: - Contractor Shall follows the directions furnished by Gujarat High court as well as Supreme

court related to de-silting the sewerage pipe line &Manchinholes. He shall take care of not lowering

labour in the Manchinhole as well pipeline during the work. He shall fully responsible for any accident

if occurred during the work / contract period.

Signature of Contractor Add.City Engineer

Name : Ahmedabad Municipal Corporation

D:- TECHNICAL SPECIFICATIONS –

Sewers to be inspected shall be suitably cleaned by high vacuum suction equipment

and by high pressure water jetting to remove all silt, grease and loose materials.

 Where necessary mechanical cleaning tools may be used to scrape off grease and

encrustations in the sewer.

 All mass roots, intruding laterals and concrete shall be neatly cut off as required for proper

structural lining work.

 Cleaning shall be carried out from the downstream access Manchinhole or chamber(otherwise

employer will direct to start the de-silting work) to the upstream access Manchinhole or

chamber and shall include all operations necessary to remove grease, slime, silt and loose

materials from the sewer bore and Manchinhole or chamber. All loosened and inherent silt

and grease material in the pipeline shall be prevented from passing downstream by necessary

stanking arrangement.

a) INSPECTION OF MANCHINHOLES :

 Inspection of Manchinhole conditions in accordance with WRC / MSCC is will be carried out

concurrently during the inspection of sewer.

 Manchinhole inspection can also carried out manually with data logging of defects and general

 Provision will be made to provide photographic / video evidence of defects where applicable.

 Any defects found will be repaired by suitable method after getting approval from DJB.

b) BYPASS PUMPING / DIVERSION OF FLOW:

 The main and branch sewers including cross connections are considered flowing full generally

in the morning peak hours. The bypass system provided shall be of sufficient capacity to

handle the estimated flows on 24 hours basis.

 The bypass pumping/flow diversion arrangement shall be continuously monitored and cleaned

or cleared off any obstructions due to the silts / grits with appropriate and quick disposals.

 Every day to ensure that the bypass arrangement is working properly and no overflow of

 The main sewer shall regularly desilt the diverted sewer network to ensure that there is no

overflow of sewage occurs at any time.

 Joint inspection of the flow diversion arrangements can be carried out during lean and peak

flow periods at lSouth once in a week.

 Flow diversion plan shall be done at site to deploy necessary pumps of suitable capacity as

per the site condition.

c) PUMPING FACILITIES:

 The provision will be made for , operation, maintenance and noise suppression of all over

pumping plant, for the provision (including establishment and removal), operation &

maintenance of all delivery hose installed and for the period during which bypass pumping

work is required ; sinking hoses in trenches; backfilling and reinstating these trenches as

required ; placing horizontal and/or ramped metal planting over temporary diversion of the

delivery hose either in trench or at the road surface and for routing delivery hoses

through other conduits, standing and plugging lateral connections as well as other relevant

requirement. The pumping equipment shall be attended to all the time by competent pump

d) TELEVISION INSPECTION OF SEWERS

 The WORK of this Section includes pre-cleaning, when necessary, and performing a closed

circuit television (CCTV) inspection of the indicated reaches of sewers. The minimum diameter

of sewer for television inspection shall be 4 inches.

 The purpose of inspection is to detect and locate defects and document the current condition

of the sewer, leading to evaluation and selection of repair methodology by the OWNER.][The

purpose of inspection is to inspect and document the physical condition of the sewer after

rehabilitation.] [The purpose of inspection is to document the condition of the new sewer.]

 The CONTRACTOR is cautioned that sewage will continue to flow to the sewers and that the

WORK must be performed under permit required for confined space entry conditions.

a) SHOP DRAWINGS AND STANDARDS

The following shall be submitted in compliance with Section

1. CCTV equipment operational manual.

2. Location where debris from cleaning sewers will be disposed.

3. Schedule for cleaning and inspecting each sewer reach.

D2:- EXECUTION OF CLEANING THE SEWER LINE:

DIVERSION PUMPING

The CONTRACTOR shall install and operate sewage diversion pumping equipment to maintain

sewage flows without backup, overflow or spill. He shall divert the flow of the existing line to be de-

silted in to downstream of the same line. He shall inform to AMC staff about the diversion of the

flow .He shall install the pumps of sufficient capacity so that no heading should be in upstream of

the de-silting work. He shall study all the branch lines falling in the line to be de-silted. He shall

keep well maintained register for every stacking used for diversion of the flow.

The CONTRACTOR shall select the cleaning equipment and method for cleaning based on the

age, the material, and the probable condition of the sewer. More than one type of equipment or

attachments may be required on a single reach or at a single location. The CONTRACTOR shall

not damage the sewer or any Manchinhole during cleaning.

When requested by the CONSTRUCTION MANAGER, the CONTRACTOR shall demonstrate the

performance capabilities of the cleaning equipment and method proposed for use. If results

obtained by the demonstration are not satisfactory, the CONTRACTOR shall select other methods

or equipment that will clean the sewer line, and shall perform another demonstration.

For water pressure cleaning equipment, the CONTRACTOR shall install a gauge to monitor

working pressure on the discharge of high-pressure water pumps.

The CONTRACTOR shall remove dirt, debris, and grease from the entire circumference of the

sewer between Manchinholes.

Acceptance of sewer cleaning work is contingent upon the successful completion of the television

inspection. If television inspection shows debris, solids, sand, grease, or grit remaining in the line,

the cleaning will be considered unsatisfactory, and the CONTRACTOR shall repeat cleaning and

televising of the sewer line at no increased cost to the OWNER until cleaning is acceptable to AMC

CONSTRUCTION MANAGER

A The CONTRACTOR shall remove sludge, dirt, sand, rocks, grease, roots, and other solid or

semisolid material resulting from the cleaning operation at the downstream Manchinhole of the

section being cleaned. A suitable sand trap, weir, dam, or suction in the next downstream

Manchinhole shall be installed so that solids and debris are trapped for removal. Passing debris

from one sewer section to any other sewer section shall not be allowed. Debris from the

Manchinholes shall be loaded into a leak proof, enclosed container that is permitted by

applicable regulations for liquid waste hauling. All solids or semi-solid wastes shall be removed

from the Site at the end of each work day. Debris, liquid waste, or sludge shall not accumulate at

B The CONTRACTOR shall dispose of waste using a licensed waste transporter to a location

licensed for the type of waste involved.

A. CCTV Equipment

1. The camera system shall include a pan-and-tilt, radial viewing, pipe inspection camera that pans

plus or minus 275 degrees and rotates 360 degrees with zooming capability. The

CONTRACTOR shall use a camera with an accurate footage counter which displays, on the

operator's monitor and the videotape, the distance of the camera from the centreline of the

starting Manchinhole. The CONTRACTOR shall use a camera with height adjustment so that the

camera lens is always cantered at one-half the inside diameter, or higher, in the pipe being

televised. The CONTRACTOR shall provide a lighting system that allows the features and

condition of the pipe to be clearly seen. A reflector in front of the camera may be required to

enhance lighting in large diameter pipe. The camera system shall be controlled from the

operator's truck.

2. Recording shall be on a 4-head VHS format VCR recorded at standard play mode in color.

b. Only segments between Manchinholes on the same sewer reach shall be included on one

c. Two permanent labels are required. One label shall be placed on the spine and the other on

the face of the videotape.

d. Cassette spine information

(1) CONTRACTOR NAME

(2) Project Name

(3) Tape Number

(4) Date Televised

(5) Date Submitted

e. Cassette face information

(1) Name of street

(2) From Manchinhole Number and VCR counter number

(3) To Manchinhole Number and VCR counter number

(4) Pipe Length and Size

(5) Project Name

(6) Tape Number

f. For each cassette the CONTRACTOR shall prepare a TV Inspection Report which shall be a

complete written log of pipe conditions [and connections], indexed to the footage counter.

1. The CONTRACTOR shall televise the sewer immediately after cleaning. It shall notify the

CONSTRUCTION MANAGER 24 hours in advance of TV inspection so that the

CONSTRUCTION MANAGER may observe inspection operations.

2. In addition, the CONTRACTOR shall clean all associated sewer Manchinholes, and shall pan the

camera to document the conditions of Manchinholes. Camera operator shall slowly inspect each

connection and sewer transitions from one pipe material to another.

3. Sewage flow during television inspection shall not be deeper than: Nominal Diameter Depth as

Percent of Inches Inside Diameter

Greater than 24

If the flow exceeds the depth limit, the CONTRACTOR shall either perform the inspection during

minimum flow times, pump or otherwise divert some flow, or use a camera with provisions for

high velocity jet flushing.]

4. The CONTRACTOR shall move the camera downstream at a uniform rate not greater than

feet per minute. The CONTRACTOR shall stop and thoroughly inspect each of the following:

[a. Collapsed pipe, obstructions

b. Structural cracking, with and without deflection

c. Missing portion of wall

d. Sag, excessively deflected joint

e. Cracked and open joints

f. Root intrusion

g. Protruding joint sealing material

h. Corrosion conditions, including exposed aggregate, exposed reinforcement, and disintegrated

wall which exposes the soil surrounding the pipe.

i. Missing, damaged, bulging PVC sheet lining.

j. Protruding lateral joint

k. Inflow point]

5. The camera operator shall log on a suitable form his/her observations in the inspection of the above

6. If the camera is unable to pass an obstruction even though flow is unobstructed, the

CONTRACTOR shall also approach the obstruction from the other direction in order to obtain

complete video on both sides of the obstruction. The CONTRACTOR shall notify the

CONSTRUCTION MANAGER whenever such an obstruction is encountered. The

CONSTRUCTION MANAGER will determine if the obstruction must be removed.

D3:-Additional Conditions For Particular Work

1. Contractor shall work of cleaning the Manchinhole as well as Pipe section with the use of

machinery and all necessary instruments. Contractor shall work outside of the Manchinhole

and nobody shall work inside of the Manchinhole in any occasion. If he will have to put any

labour in Manchinhole he shall make following necessary arrangement

A. Contractor shall keep both end of pipe in the Manchinhole open if there will be any labour work

in the Manchinhole. He has to suck the foul gases from the Manchinhole as well as pipe and

blow the fresh air in the Manchinhole as well as pipe section.

B. Contractor shall protect / Barricade the working site if any cover of Manchinhole will be open

for the work. He shall put the caution board around the Opened Manchinhole.

C. Contractor shall keep the Manchinhole opened without any body in the Manchinhole& blow the

air as well as fresh water in the Manchinhole check whether the gas has been removed from

the Manchinhole and then after he shall allow for labour in the Manchinhole.

D. Contractor shall put the Gas detector in the Manchinhole as well as put the lightened candle in

the Manchinhole so that Oxygen gas can be checked in the Manchinhole.

E. Contractor shall put the alarm system in the Manchinhole.

F. Any labour shall lower down in the Manchinhole with the safety belt, Mask, Oxygen Cylinder,

First Aid Box and contractor shall take care of the labour.

G. Contractor shall provide any tool to the labour very carefully while he is working in the

Manchinhole so that any hazardous may not be arises.

H. Contractor shall arrange Mucadum and Supervisor continuous on the site during the work

I. Contractor shall arrange the training for the labours working in the Manchinhole to operate the

safety measures.

J. Contractor shall provide Uniform as well as operating tools to work in the Manchinhole.

K. Contractor shall make the arrangement that every cover of the Manchinhole shall be fixed on

the Manchinhole sheet after the work will be completed.

L. Contractor shall remove the sludge/ silt removed from the Manchinhole and pipe section such

a way that it may not be dangerous for health of public and traffic of the road around vicinity of

M. Contractor shall furnish the data daily to the AMC office and shall make the arrangement

N. Contractor shall provide the Mobile phone to his supervisor/ Engineer on the work place for

better coordination with AMC staff.

O. Contractor shall appoint eligible and capable supervisor to handle the any type of situation /

accident at the site and he should remain present at the work site.

P. If any accident occurs at the work site contractor shall fully responsible and AMC will not

provide any help in that manner.

Q. The Contractor shall maintain suitable working conditions such as approach for labours and

the Vehicles / Equipments up to the Manchinhole on his cost.

R. Contractor shall arrange water tanker as and when required water during the commissioning of

Seal and Signature of the Bidder Additional City Engineer

Date: Ahmedabad Municipal Corporation

TECHNICAL SPECIFICATION

Name of Work:-Desilting of drainage line work At Acher Gamtal Road, Parimal

Hospital Road, Visat to Rathi Apartment Road, Visat to Tapovan Circle Road, Jawahar

Chowk Circle to Sarvottam Nagar Road, Ramnagar Road and the surrounding areas

by CCTV camera method in Sabarmati ward ,West Zone.

1) Constructing Slab type M.H. Chamber of the following size including excavation, refilling, brick bats

cement concrete (1:5:10) of thickness 15 C.M., CC Channel (1:2:4) of thickness 10 C.M., finished 15 mm

thick cement plaster inside & outside (Only for shaft) in CM 1:3, finishing with cement slurry, P/F 4 mm

diaM.S.Steel HDPE coated steps 35 cm c/c at 35 cm staggered in masonary CM 1:5, RCC Slab in CC

1:1.5:3 of thickness 23 C.M., including Cantering & reinforcement (double jalli at 15 C.M. c/c bothway

mm dia.) but excluding the cost of Manhole seat cover etc..completed. of Size 1.00 X 1.40 meter (Inside

Clear, M.H. length should be parallel to the flow, for pipe dia<= 800 mm)

2) 1.00 to 2.00 meter depth, (Slab at Ground level)

3) 2.00 to 3.00 meter depth, (Slab at below 0.6 mt. From G.L.)

4) 3.00 to 4.00 meter depth, (Slab at below 1.00 mt. From G.L.)

5) 5.00 to 6.00 meter depth, (Slab at below 1.00 mt. From G.L.)

6) 7.00 to 8.00 meter depth, (Slab at below 1.00 mt. From G.L.)

(a)Excavation : This be done as specification in Item No.

(b)Brick bats CementConcrete:-

: Cement used shall be got approved by the enginre in charge be fore starting the work this shall comply

with specification in general.

Sand to be used should comply with specification of P.W.D. hand book in general.

Brickbats to be used for concrete must be thoroughly well burnt and free fromany impurities

and size from 20 to 25 m.m.

The preparation of concrete shall be one part of cement 5 part of sand &10 part broken brickbats.

Brickbats must be perfectly clean from inprutes and shall be throughlywetered be for mixing and mixed

properly on wooden or specially propared platform until every part of the brockbats is sufficently coated with

Concrete must always be used fresh it shall be laid in layers as directed never exceeding 20 kms. in

thickness and be well and quickly rammend with heavy rammers, until mortar creams up to surface. The

surface must be kept damp during and after consolidation & in laying consecutive layer the lower coars

should be well watered & mode lough be for the next is placed.

(c)Brick work with cement mortar .

Brick shall be table bricks of approved clean conforming with the specification as laid down in P.W.D. hand

book No.2 The brick shall be wellburnt and free from any defects shall be got approved by the Enginur in charge

be fore the work is started.

Cement to be used for mortar shall comply with I.S.S. & P.W.D. hand book specifications cement mortar for

the brick work shall be one parts of cement to six part of sand every brick well soaked in water is required to be

ladi in joints of cement mortar the thickness of which shall not exceed paints of 1.25 cm If after removal of

centering any open joints are founed these shall be pointed immedately.

Special care shall be taken to make the faces of brick work smooth brick work mar be toothed or shall be

racked back in course.

All intrados of curse be worked from compete strickly made to dimensions and grade.

Brick work in general shall be of first class workmanship and shall be excuted according to plan working to

the proper dimension & as directing by the officer in charge from the time to time bricks should be throughly in

water be fore use. All bricks shall Ihave to be cleaned water be fore laying cement mortar shall be prepared in

special iron pans and mixed in quantites as required using measurs boxes for sand and cement bag of 1.25 cft.

or 1 cft. as measured the case may be all materials shall be stacked on the site as not to obstruct tra fic in any

way the masonary should be constructed in proper workmanship like manner with joints plunb etc. to conform

with general specification No.45 P.W.D hand book. The face work should be neatly finished. The work shall be

keptwaterd for work at lSouth after date of completion.

(d)C.C. channels.

Cement concrete for the inverts and channels of manholes shall consist of one parts of cement 2 parts of

sand 4 part of aggregates of black trap metalof other approved material of sizes from 0.6 to 2.5 cm. well graded

as per instructions.

The work shall be as per P.W.D hand book specification No.20 as per general instructions. The rate

includes all necessary materuals mixing laying and remain and watering the exposed faces tobe finished with

neat cement as per instruction the channel shall be half round and as per drawing & instruction of Engineer in

charge. proper bunching shall be provided at both of the channel.

(e)Cement plaster.

Cement plaster 15 M.M. shall be done using cement mortar of 1 part cement and 3 parts of sand in uniform

thickness with surfaces truely in plumb. The work in general shall comply with general specifi cations for )plaster

no.64.P.W.D. hand book plastered surface shall kept damp atlSouth for fortnight.

All internal surfaces of the manholes including soft to arch shall be provided with cement plaster.

Manhole shall be provided at every change of alignment, gradient or diameter of sewer/storm water drains,

Bends and junctions in the sewer/drain shall be grouped together in manhole as far as possoble. The maximum

distance between inspection chambers shall be about 25 meters. Where the diameter of sewer/drain is

increased, the soffit of the pipe shall be fixed at the same level and necessary slope given to the channel of

manhole/inspection chamber. The minimum internal sizes of manhole/inspection chamber shall be as per the

respective item of work. The manhole/inspection chamber shall be constructed as per the detailed drawings and

as directed by Engineer. The bed concrete and the brick masonry shall be constructed of such thickness as

shown on drawing. The brick masonry shall be constructed in C.M. (1:5), plastered on both faces inside and out

side with 15 mm cement plaster in C.M. (1:3). The channel shall be semicircular in the bottom half and of

diameter equal to the sewer/drain. Above the horizontal diameter, the sides shall be extended vertically to the

same level as the crown of the outgoing pipe and the top edge shall be suitable rounded off. The branch

channels shall also be similarly constructed with respect to the benching out at their junction with the main

channel as appropriate fall suitable rounded off in the direction of flow in the main channel shall be given. The

channel at the bottom of manhole / inspection chamber shall be plastered with C.M. (1:3) and finished smooth.

Rungs shall be provided in all manholes/inspection chambers over 0.6 mtr in depth and shall be of cast iron

conforming to IS:5455. These rungs shall be fixed staggered in two vertical runs, 300 mm apart horizontally and

300 mm c/c vertically. The top rung shall be 450 mm below the manhole/ inspection chamber cover and the

loSouthnot more than 300 mm above the benching. The manhole/inspection chamber frame and cover shall be

of cast iron of specified weight and shall conform to the requirements given in IS:1726. The covers and frames

shall be cleanly cast and they shall be free from air and sand holes and from clod shuts. They shall be neatly

dressed and carefully trimmed. All castings shall be free from voids whether due to shrinkage, gas inclusion or

other causes. Covers shall have a raised chequered design on the top surface to provide an adequered nonslip

grip. Cover shall be capable of easy opening and closing and it shall be fitted in the frame in workmanship like

manner. The cover shall be gas tight and water tight. The size of covers specified shall be considered as the

clear internal dimensions of the frame. Covers and frames shall be coated with a black bituminous composition.

The coating shall be smooth and tenaceous. The frame of manhole/inspection chamber cover shall be firmly

embeded to correct alignment and level in cement concrete on the top of the masonry. The item shall be

executed as per the detailed drawing and as directed by Engineer.

Design and Details of Reinforcement for the slab shall be approved before casting work or as directed by

engineer in charge or Additional City Engineer (zone)

Mode of measurement:

The rate shall be for a unit of one number basis.

Temporary / Permanent Plugging for blocking of sewer line, branch connections and

diversion of flows and removal of all plugs by any means etc. comp. as directed by

Engineer In Charge of the work.

Measurement shall be on No. basis. Contractor shall construct temporary pucca

dummy in main line or branch lines opening in the Manchinhole to close the sewer

flow for de-silting the sewer pipe in working stretch and to divert the sewage flow

by brick massionary or other means in optional pipe.

Contractor shall open the dummy after de-silting work completed and remove all

debries from the Manchinhole.

Rate also includes of line commissioning after de-silting it with if available nearby

freely. If it not available in the near vicinity area freely Contractor himself provide it

on his own cost.

Provide everything else required for diversion of flow by pumping and / or bypassing and

to maintain the sewerage system functioning normal and managing the flow without any

sur-charging, overflows etc during the De-silting/ rehabilitation works of the sewer line to

the satisfaction of the Engineer in charge of the work.

Measurement shall be considered on Running meter length basis as per attached

abstracted rates.

Loosen, de-silt and thoroughly clean and remove debris and objects such as boulders,

bricks etc, bacteriological slimes, roots, encrustations, grease, carbonated deposits, etc

from the sewer line including disposal of silt / debris / malba / objects etc, including

solidification of silt/malba/debris for disposal to the dumping sites as per the direction of

the Engineer - in - charge.(As per Rate Analysis)

Measurement shall be considered on Running meter length basis as per attached

abstracted rates. Item includes De-silting work for existing following size dia. sewerage line and

its Manchinhole of any size and depth. Work shall be executed as per guideline of honorable

Supreme Court. Rate includes Loosen, de-silt and thoroughly clean and remove debris and

objects such as boulders, bricks etc, bacteriological slimes, roots, encrustations, grease,

carbonated deposits, etc from heavily surcharged sewer line by super sucker machine with high

flow jetting and vacuum system including safe disposal of silt / debris / malba / objects etc with

carting within AMC limit. Rate includes divergence of the sewer flow from working stretch of the

line by installation of proper pumping system so that there should not be over surcharging in

upstream of the working stretch (upstream of the plugged line). Rate includes 100% CCTV survey

of de-silted sewer line with camera on pan and tilt rotated 360̊ and recording and submitting 3 sets

of CD and sufficient copies of Still Photographs. Rate also includes supply of all material, labours,

tools and plants, temporary power connection with standby generator of sufficient power output,

gas detector, forced air ventilators and provision of saetyequipments as per guideline laid by

ISI1972(and 1987), international standard traffic control arrangements and proper lighting at night,

barricading, display of sign boards

Contractor shall arrangement for the safety and securities system with barricading on site, carting

of silt up to 5.0 Km lead, required power arrangement, machinery, equipments and manpower at

the work. If any water found in the pipeline or Manchinhole contractor shall dewater from the

Manchinhole or pipeline by any means of machinery. He shall take care of not disturbing any

people residing in the vicinity area during the work of dewatering and de-silting. He shall take care

of not lowering any labour in the Manchinhole / pipe. Contractor shall use any kind of machinery

as well as equipments for de-silting the pipeline. After de-silting the pipe as well as Manchinhole

Engineer in charge of the work shall verify the pipeline whether it is cleared or not. He shall have

to make the arrangement of any kind of material like water and equipments like pump, hosepipe,

Fighter, Jetting, Suction machinery, for testing and commissioning the pipeline. All rates are

inclusive of dewatering, de-silting, carting the silt at 5 km lead, testing and commissioning the

pipeline with barricading, safety guards.

Contractor shall have to make the line dead (Free of sewage flow) if the line found

flowing with the Clean or Sewage Flow at his own risk and cost. He shall make the

arrangement for diverting the sewage flow from the sewage flow.

Post-desilting colour CCTV/ Photographic survey including pan and Zoom inspection of

laterals and defects and submission of video tapes or CD inclusive of colour photographs

to the Engineer in total 2 Sets.

Any dia. Pipeline and any size Duct

Measurement shall be considered on Running meter length basis as per attached

abstracted rates.

Cutting of bituminous road of DBMand Asphalt concrete of any thickness.

Measurement shall be considered on Running meter length basis as per attached

abstracted rates.

Brickwork using common burnt clay building bricks having crushing strength not

less than 35 kg/sq. cm in foundation and plinth in cement mortar 1:5(icement :

coarse sand) including racking out joints, curing, scaffolding etc complete as

directed for any height. Measurement shall be considered on No.s basis as per

attached abstracted rates.

Raising buried manhole undereath road using Brick masonarey with Bricks of Stremgth

KG/sq. Cm and cement mortorin 1:5 plaster work in cement Mortar 1:4 and CC work Up to

new road level as per instruction of engineer in charges.

Measurement shall be considered on No. basis as per attached abstracted rates.and

work executed as per directed and instructed by engineer in charge.

Providing And fixing fiber reinforced seat and cover in line and CC 1:2:4 and finishing

smooth etc. Complete as directed Heavy Duty Type.

Measurement shall be considered on No. basis as per attached abstracted rates.and

work executed as per directed and instructed by engineer in charge.

Seal and Signature of the Bidder Additional City Engineer

Date: Ahmedabad Municipal Corporation

ybœtJtœBgwÂlÂmvjftuvtuohuNl

bntldhmuJtmœl–vrùbÍtul

vrùbÍtulÍtuljytuVem,

1. Wvhtuf<xuLzhtusu<u JdobtkbtLghSMx[uNl ^htJ<t ftuLx[tfxh©eytuyuChJt.

2. xuLzhlerlg<xuLzhVe<&t R.yub.ze. ck^ fJhbtkkWvhltmhltbuÁcÁ / hSMxhyu.ze./MvezvtuMx/

fwhegh&erlg<mbgbtkbtufjJtlthnuNu.

3. ftuLx[tfxh©eytuyuxuLzhlemt&uBGþrlrmvjbtLghSMx[uNlle/ dJobuLxhSMx[uNlleftuve, (xuLzhftuve<&t yLgvwhtJtmt&u)

yawfmtbujfhJtlehnuNuylufJhWvhxuLzhlkch<&t ftuLxufxlkchsYhMvÐœNtoJJtltu hnuNu.ck^ fhJhWvhxuLzhltuxemlkch,

xuLzhlkch, ftblwkltb<&t, ftuLx[[tfxhlemkM&tlwkltb<&t ftuLxufxlkchyJ~gœNtoJJtlthnuNu. ftuLx[tfxhtuyuxuLzhbtcukflwltb, Ft<t

lkch, btRfhlkchylumhltbwMvÐyûthtubtkjFJw.

4. xuLzhVe vu ytuzoh / zebtLzz[tVx&eaqfJJtlehnuNu. œhufxuLzhœeXyjdxuLzhxuLzhVeChJtlehnuNu.

5. ytuAehfblexuLzhVe, R.yub.ze. fu xuLzhVe, R.yub.ze. ÂJltltxuLzhtuhœct<j (fuLmj) dKtNu.

6. xuLzhmt&uBþfJtbtkytJ<e yluoMxble, xuLzhlehfblt 1% «btKucukfduhLxe / zebtLzz[tVx / vu ytuzoh / jtufjbtRfhauf&e s

MJefthJtbtkytJNu. œhufxuLzhœeXyjdR.yub.ze. ChJtlehnuNu. R.yub.ze. hfbYt.

yuffhtuzmwDeleykœtS<hfbltftbbtxujtufjbtRfhauf, rzbtLzz[tVx, vu ytuzoh fu cukfduhkxeltMJYvbtk<&t Yt.

yuffhtuz&eWvhleykœtS<hfbltftbbtxuR.yub.ze.lehfbbtºtrzbtLzz[tVx, vu ytuzoh fu ckufduhkxeltMJYvbtkytvJtlehnuNu.

7. cukfduhuLxebtºtybœtJtœNnuhle s MJefthJtbtkytJNu.

8. xuLzhVe<&t R.yub.ze.lehfbltze.ze./auflevtA¤ ftuLx[tfxh©eyuvtu<tlemkM&tlwkltb<&t btuctRjlkchyJ~gjFJtltuhnuNu.

ftuLx[t¾xhu vtu<tlemkkM&tltauf<&t ze.ze. xuLzhR~gw&gt<theFctœlt s ytvJt.

9. Nh<e xuLzhtuhœct<j dKtNu.

10. stuxuLzhbtkMvÐWÕjuFfhtgujntug<tu atubtmtlufthKuFt<tfegMËaltyLJgußgthußgthuftbck^ htFJtLþk&tg<u

mbgluftbleBþÆ<btkbshuytvJtbtkytJNu. vhkðþytyLJguftuECtJJ^thtuytvJtbtkytJNulne. suleltuk^ >hufxuLzhhujuJe.

11. xuuLzhtuftuEvKfthKytÃgtrmJtgMJefthJt fu lrnkMJefthJt<ulemkÃËKom•ttBGþrlrmvjfrbNlh©elehnuNu.

12. xuLzhbtkstuftuRmwDthtJDthtntug<tu <u ykdxuLzhCh<t vnujtAuÕjuÂœJmurlg<JucmtRxy&JtfauheyusYhe<vtmfhelu s xuLzhbtufjJw.

13. mefgtuhexezevtuÍex/ vVtuboLmduhuLxelehfbYt. yuffhtuzmwDeleykœtS<hfbltftbbtxujtufjbtRfhauf, rzbtLzz[tVx, vu ytuzoh fu

cukfduhkxeltMJYvbtk<&t Yt. yuffhtuz&eWvhleykœtS<hfbltftbbtxumefgtuhexezevtuÍex/ vhVtuboLmduhkxelehfbbtºtrzbtLzz[tVx, vu

ytuzoh fu ckufduhkxeltMJYvbtkytvJtlehnuNu.

14. ytuljtRlyul-«tufgwhJucmtRxvh&eChJtlt&<t xuLzhbtkftuLx[tfxh/

yusLmeyuxuLzhlentzoftuvebtkCtJCgtoJdhlemnemefftfhemcbexfhJtlehnuNu. stu<ubtkCtJChujnNu<tu <uJtxuLzhhœfhJtbtkytJNu.

15. mœhxuLzhbtk ” GST rl<e rlgbbwscjtdwvzNu ”<u bwscdK<hefhexuLzhtuChJtlthnuNu.

16. mœhxuLzhbtk ”dwsht<mhfth ©e lt ©b,ftiNÕgrJftmyluhtusdthrJCtd,mraJtjg,dtk^eldhltXhtJ ¢btkf: LED/WRT/e-

file/11/2024/0293/M2 Dt.15.02.2024” bwscawM<vKuybjfhJtltuhnuNu.

ybœtJtœBgwÂlÂmvjftuvtuohuNl

yu.yth.me. xuLzh- Nh<tu

1. yu.yth.me. xuLzhbtkJfoytuzhytÃgtctœftb NY fhJtlembgbgtoœtbtkftuLx[tfxhîthtftb NY fhJtleòKfgtoctœ

24 fjtfltftb NY lrnfhJtbtkytJu<tu

yLgftuLx[tfxhvtmubtfuoxhux&eftuLx[tfxhltFaouylustuFbuftbdehefhtJJtbtkytJNu.

2. ftuLx[tfxhluJfoytuzohytÃgtctœ yu.yth.me. «fthlkwxuLzhntuRftblesYhegt<bwscxujeVtulefòKfhesu<u ftb

NY fhJtfnuJtbtkytJNuylusuftbleòKfgtolt 24 fjtfbtk NY

fhJtbtklrnytJuylurlg<mbgbgtoœtbtkvwKofhJtbtklrnytJu<tu su<u ytRxbltSORCtJ&e

dKevulÕxeJmwjjuJtbtkytJNu.

3. ºtK fu J^wJthWvhbwscleyLgftuLx[tfxhvtmu&eftbdehefhtJJtleVhsvzNuylu/y&JtºtK

fuJ^wJthvulÕxefhJtleVhsvzNu<tu <u mkstudtubtkftuLx[tfxhluçjufjeMxfhJtbtkytJNusuleykr<b m•tt

Bgw.frb¹lh©elu hnuNu.

AHMEDABAD MUNICLPAL CORPORATION

MAHANAGAR SEVA SADAN

Clause : 1 Contractor shall not employ any child having age 5 to 15 years as it is prohibited by Child Labour Prohibition and

Regulation Act 1986. Hon'ble Supreme Court has given certain guide lines and as per the guide lines. If child labour is

employed on the site work, the contractor shall have to deposit Rs. 20,000.00 (Rupees Tw enty thousand only) in the child

labour welfare fund. If the employer refuses to deposit then action will be taken for contempt of Supreme Court

Judgement and also will be prosecuted by concerned authority. Because of the breach of any provision of child labour

prohibition and regulation Act 1986 by the Contractor & Municipal Corporation becomes liable to pay any amount then

the Municipal Corporation shall recover the said amount from the contractor.

Clause : 2 The Standing Committee has decided to deduct 1/2% amount from each running bill as per its Reso. No.

Date 06--02-97, but the Municipal Corporation Board has recently decided that the actual testing charge is taken and the

remaining amount is refundable at the time of final bill (As per Muni. Board Reso. No. 123 dated 25-02-97)

Clause : 3 Contractor has to follow prevailing Labour act and has to maintain labour register acordingly,and has to follow

other govt.rules.

Clause : 4 Quantity taken in tender are tentative and may differ as per execution of work. No claim shall be entertain

regarding QUANTITIES.

* MODIFICATION OF DOCUMENTS

Modification of specifications and correction/corrigendum in respect of the work if required will be made by A.M.C. The

same shall be placed on A.M.C website which may be downloaded by the tendrers enclosed along with the tender duly

signed. These shall form a part of tender. The tenderer shall not add or amend the text of any of the documents except in

so far as may be necessary to comply with any addendum.

* ADDENDAUM/CORRIGENDUM .

Addendum or corrigendum conveying any change or correction in respect of the work shall form the part of the contract

documents. The full consideration shall be given to such addendum or corrigendum or correction before submission

tender duly filled in by the contractor. Therefore, the contractor shall have to watch such addendum or corrigendum or

correction published by A.M.C through its website www.egovamc.com. Tenderes shall verify the number of addendum

issued and enclose the same with the tender documents,failing which the tender shall be liable for rejection and no any

complaint in respect to this shall be entertained under any circumstances.

CONTRACTOR'S SIGNATURE ADD.CITY ENGINEER

& STAMP (West Zone)