Desilting of drainage line and storm water drainage Line by CCTV camera method at ACE-2 areas like Ognaj, Mahatma gandhi vasahat, TP- Area, Gota Gam area and other different area of Gota ward NWZ. (ARC)

Name of work :- Desilting of drainage line and storm water drainage Line by CCTV camera method

at ACE-2 areas like Ognaj, Mahatma gandhi vasahat, TP- Area, Gota Gam area and other different

area of Gota ward NWZ. (ARC)

Item No. Item / Description Qty Rate Unit Total

1 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

(J) 1800 mm dia to 2200mm Dia 3 7500.00 No.

(K) RCC Duct of any size 3 8000.00 No.

2 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.

(A) 300 mm dia 1600 100.00 RMT

(B) 450 mm dia 2400 150.00 RMT

(C) 600 mm dia 2500 250.00 RMT

(D) 800 mm dia 50 300.00 RMT

(E) 900 mm dia 2250 450.00 RMT

(F) 1000 mm dia 50 475.00 RMT

(G) 1200 mm dia 50 510.00 RMT

(H) 1400 mm dia 25 800.00 RMT

(I) 1600 mm dia 25 1000.00 RMT

(J) 1800 mm dia to 2200mm Dia 25 1100.00 RMT

(K) RCC Duct of any size 40 1200.00 No.

3 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.

(i) ( For Above 80% silted line) 100 % AS /

TENDER RATE 650 1230.00 RMT

(ii) ( For 80% to 50 % Drainage silted line)

80 % AS / TENDER RATE 485 984.00 RMT

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

line) 50 % AS/TENDER RATE 485 615.00 RMT

(i) ( For Above 80% silted line) 100 % AS /

TENDER RATE 800 1815.00 RMT

(ii) ( For 80% to 50 % Drainage silted line)

80 % AS / TENDER RATE 800 1452.00 RMT

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

line) 50 % AS/TENDER RATE 800 907.00 RMT

(i) ( For Above 80% silted line) 100 % AS /

TENDER RATE 940 2460.00 RMT

(ii) ( For 80% to 50 % Drainage silted line)

80 % AS / TENDER RATE 940 1968.00 RMT

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

line) 50 % AS/TENDER RATE 800 1230.00 RMT

(i) ( For Above 80% silted line) 100 % AS /

TENDER RATE 25 3280.00 RMT

(ii) ( For 80% to 50 % Drainage silted line)

80 % AS / TENDER RATE 15 2624.00 RMT

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

line) 50 % AS/TENDER RATE 15 1640.00 RMT

(i) ( For Above 80% silted line) 100 % AS /

TENDER RATE 800 3700.00 RMT

(ii) ( For 80% to 50 % Drainage silted line)

80 % AS / TENDER RATE 800 2960.00 RMT

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

line) 50 % AS/TENDER RATE 690 1850.00 RMT

(i) ( For Above 80% silted line) 100 % AS /

TENDER RATE 30 4450.00 RMT

(ii) ( For 80% to 50 % Drainage silted line)

80 % AS / TENDER RATE 15 3560.00 RMT

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

line) 50 % AS/TENDER RATE 15 2225.00 RMT

(G) 1200 mm dia

(i) ( For Above 80% silted line) 100 % AS /

TENDER RATE 30 5040.00 RMT

(ii) ( For 80% to 50 % Drainage silted line)

80 % AS / TENDER RATE 15 4032.00 RMT

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

line) 50 % AS/TENDER RATE 15 2520.00 RMT

(H) 1400 mm dia

(i) ( For Above 80% silted line) 100 % AS /

TENDER RATE 20 5880.00 RMT

(ii) ( For 80% to 50 % Drainage silted line)

80 % AS / TENDER RATE 10 4704.00 RMT

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

line) 50 % AS/TENDER RATE 10 2940.00 RMT

(I) 1600 mm dia

(i) ( For Above 80% silted line) 100 % AS /

TENDER RATE 30 6720.00 RMT

(ii) ( For 80% to 50 % Drainage silted line)

80 % AS / TENDER RATE 15 5376.00 RMT

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

line) 50 % AS/ TENDER RATE 15 3360.00 RMT

(J) 1800 mm dia to 2200mm Dia

(i) ( For Above 80% silted line) 100 % AS /

TENDER RATE 30 7560.00 RMT

(ii) ( For 80% to 50 % Drainage silted line)

80 % AS / TENDER RATE 15 6048.00 RMT

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

line) 50 % AS/TENDER RATE 15 3780.00 RMT

(K) RCC Duct of any size

(i) ( For Above 80% silted line) 100 % AS /

TENDER RATE 20 8000.00 RMT

(ii) ( For 80% to 50 % Drainage silted line)

80 % AS / TENDER RATE 10 6400.00 RMT

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

line) 50 % AS/TENDER RATE 10 4000.00 RMT

4 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.

(B) 450mm dia 2430 250.00 RMT

(C) 600mm dia 2550 250.00 RMT

(D) 800mm dia 50 250.00 RMT

(E) 900mm dia 2400 250.00 RMT

(F) 1000mm dia 40 250.00 RMT

(G) 1200 mm dia 40 250.00 RMT

(H) 1400 mm dia 20 250.00 RMT

(I) 1600 mm dia 20 250.00 RMT

(J) 1800 mm dia to 2200mm Dia 20 250.00 RMT

(K) RCC Duct of any size 40 250.00 RMT

5 Cutting of bituminous road of DBM and

Asphalt concrete of any thickness. 800 75.00 SMT

6 Brick work using common burnt clay

building bricks having crushing strength

not less than 35kg./Sq.Cm. in foundation

and plinth in Cement Mortar 1:5.(1-

Cement:5-finesand) (B) Conventional

(upto 10 ton)including racking out joints,

curing scaffolding etc complete as

directed by any height.(Bldg SOR 2015-

16 Rate) 5 2872.00 CMT

7 Finding & Raising buried manhole

underneath road using Brick massonery

with Brick Strenghth 35kg / quare cm

and cement morter 1:4 and CC work up

to new road level as per instruction of

engineer in charge 5 2500.00 No.

8 Providing and fixing F.R.C. Extra Heavy

Duty (EHD-35) Manhole Covers &

Frames Cover : 728mm ø & 100 mm

thick circular cover,35.00 MT load

design, 100x2mm MS flat allround,

16mm ø plain round bar for lifting the

cover & should be fitted with plastic

cups. Frame : 560 mm ø clear opening,

outer size- 888x888x175 mm. On the

upper periphery of frame 25 x 3 mm

wide MS flat should be well embed in

concrete to protect the edges of frame.

FRC E.H.D.-35 manhole cover & frame

incl. carting to the work site

etc.comp.(Based on rate of central store) 5 1540.00 No.

9 Providing TMT Bar FE

reinforcement for R.C.C.work including

bending, binding and placing inposition

complete up to floor two level (upto

ton) including cost of steel and binding

wire for reservoirs / structures only

including lift up to 6 meter height or

depth below G.L.for all diameter.(Bldg

10 Survey to determine sewer alignment,

levels, M/H positions, proximity of

structures, measurement of exact length

between manholes and providing two

sets of autocad drawing as per

instruction of Engg.

incharge.(App.C.C.T.V. Disilting Tender

Rate) 9000 7.50 Rmt

11 Kaccha/Pakka Dummy work in line

K RCC Duct1.5 mx1.5m 1 125000 No

L RCC Duct1.5 mx 2.0m 1 180000 No

M RCC Duct1.5 mx 2.5m 1 233000 No

N RCC Duct1.5 mx 3.0m 1 249900 No

O RCC Duct 2.5 mx 2.0m 1 299900 No

P RCC Duct 2.5 mx 2.5m

Q RCC Duct 3.0 mx 2.5m 1 375000 No

R RCC Duct 3.0 mx 3.0m 1 398000 No

S RCC Duct 3.0 mx 3.5m 1 449000 No

12 MH chamber clean work with safety

meaureser s and Also Includes supply

of all material Labour tool and Plants

Temporary Power Connection with stand

by generator of sufficient power output

gas detector forced air vantilators

and provision of safty equipment as

per guideline laid by ISI1972 (and 1987)

International standard Traffic Contrl

arrangements and Proper Lighting at

night barricading display of

sign boards ensuring highcourt

A Any Size depth upto 2.0m 10 15,000.00 No

B Any Size depth upto 3.0m 10 25,000.00 No

C Any Size depth upto 4.0m 8 30,000.00 No

D Any Size depth upto 5.0m 7 35,000.00 No

E Any Size depth upto 6.0m 1 48,000.00 No

F Any Size depth upto 7.0m 1 60,000.00 No

G Any Size depth upto 8.0m 1 75,000.00 No

H Any Size depth upto 9.0m 1 85,000.00 No

I Any Size depth upto to10.0m 1 90,000.00 No

J Any Size depth upto to11.0m 1 100000 No

K Any Size depth upto to12.0m 1 110000 No

13 Supplying Electric Breaker Machine for

RCC Sl abor Asphalt Demolishing Work

on site by using Operator, fuel,

power Supplyetc. Complete as Directed.

(No payment should be allowed for non

working condition of machine ryand for

pipe line excavation and M.H.work.

Allowed only for breakdown work. 20 1,200.00 shift

14 Providing & Supplying hydra crane

Machine of 12 tone capacity on rental

basis incase of emergency situation and

break downtype work & also during

unavoidable condition as per instruction

of engg. incharge , rate includes all

nece. shifting, fuel and operating

charges .(No payment should be allowed Per8hr

for non working condition of machinery) 8 5,500.00 Shift

15 Supplying Pneumatic Breaker Machine

for RCC Slab or Asphalt Demolishing

Work on site by using Operator, fuel,

power Supplyetc. Complete as Directed.

(No payment should be allowed for non

working condition of machinery and for

pipeline excavation and M.H. work.

Allowed only for break down work) (

Based on Previously approved rate by

CEsir ) 23 600.00 hrs

16 Providing & Supplying JCB Machine on

rental basis in case of emergency

situation and break down type

work & also during unavoidable

condition as per instruction of

engg. in charge, rate includes all nece.

,fuel and operating charges and stacking

of useful & non-useful materials

separately up to store. (No payment

shouldbe allowed for non working

condition of machinery and for pipeline

excavation and laying work) (Based on

sly approved rate by CE sir) 20 600.00 hrs

17 Hiring and operating the 20KV 3 Phase

Electric Generator for operating desilting

machinery, and lighting and other

requirements with Arranging diesel

torun the D.G. Set Do As

Directed. 8 Hrs Shift.

(No payment should be allowed for non

working condition of

) (Based on Previously approved rate by

CE sir ) 5 2,800.00 Shift

18 Hiring and operating Mud Pumps incl.

of fuel and operator including the

cost of to and fro sportation, laying

of the delivery hoses as required,

lowering and lifting the pumps as and

when required etc. complete. Set Do As

Directed. (No payment should be

allowed for non working condition of

machinery) (Based on Previously

approved rate by CE sir ) 573.75 16.00 H.P/Hr

% ABOVE Or % BELOW (in words also)

CONTRACTOR'S SIGNATURE ADDITIONAL CITY ENGINEER

& STAMP (North West Zone)

AHMEDABAD MUNICIPAL CORPORATION

"North West Zone, Zonal Office", Nr. Atithi Hotel, Bodakdev Ahmedabad.

Municipal Commissioner invites Percentage Rate sealed tenders from interested contractors .

1 Name of work Desilting of drainage line and storm water drainage Line by CCTV camera

method at ACE-2 areas like Ognaj, Mahatma gandhi vasahat, TP- Area, Gota

Gam area and other different area of Gota ward NWZ. (ARC)

2 Time Limit 18 month (Ex. Monsoon)

3 Eligibility Criteria Register “A” Class in PWD in Govt. R&B/CPWD/AMC or equivalent registration

with any other state Govt. or institutions.

4 Estimated Cost put to tender Rs.3,00,00,000.00

5 Earnest Money Deposit Rs.3,00,000/-Demand Draft, Pay order, or Cheque ,Bank Guarantee (As per

finanance circular No 21) in favour of Municipal Commissioner, Ahmedabad)

To be submitted as prescribed in 7.0 below. Demand Draft or Bank Guarantee

shall be from Nationalized Bank and valid for 120 days.

6 (A) Security Deposit: 5% of Tender Amount but Depends Upon AMC Circular Only.

(B) Retention 1. @ 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.

7 Tender fees Rs.3,600.00 Demand Draft / Pay order in favour of Municipal Commissioner,

(Non refundable) Ahmedabad)

8 Submission of EMD and In separate sealed cover each for EMD and Tender Fees along with Tender as

Tender Fees described in the invitation of tender and submitted to Assistant Manager

(North West zone), Ahmedabad Municipal Corporation, North West Zone,

Zonal Office", Nr.Atithi Hotel, Bodakdev Ahmedabad.

9 Tenders issue date Tenders from the website http://amc.nprocure.com and http://nprocure.com.

shall be down loaded from

10 Last date of receiving Dt. 28/09/2026 up to 18:00 Hrs The tenders received after this date and time

Tenders. will not be entertained under any circumstances.

11 Date of Opening Dt. 30/09/2026 at 12:00 Hrs to Assistant Manager "North West Zone Office",

Rajmata vijyaraje sindhya bhavan, Near Atithi hotel, Bodakev, Ahmedabad.

12 Mode of sending the Tender Document shall be submitted in sealed envelope systems By RPAD/ Speed

Documents post/ Hand Delivery/ Courier in sealed covers as described in submission of

13 Terms, Condition, & All general condition of contract of Form B1 condition of contract shall be

Specification applicable.

14 liquidated damages- 10% of the Amount For Balance work After Date of Completion or

Compensation For Delay extended time Limit.

15 Preliminary prequalification Average annual financial turnover during the last 3 years, ending 31st

criteria of bidding firm March of the previous financial year, should be at least 30% of the estimate

(detailed put to tender i.e. Rs.120,00,000/- for this work.

criterias are given in the Bid

Experience of work of similar nature during last 7 years (in lakhs)

Document) a. Single work of Rs.320,00,000.00/- ( 80 % of Estimate put to tender) OR

b. Two works of Rs.200,00,000.00/- (50 % of Estimate Put to Tender) OR

c. Three works of Rs.1,60,00,000.00 /- (40 % of Estimate put to tender)

16 Goods & Service Tax (GST) Goods & Service Tax (GST) shall be applicable & bidder should submit all

necessary supporting documents as and when asked by AMC.

Conditional tenders will not be accepted. Municipal Commissioner reserves the rights to reject any or all

the tenders without assigning any reasons thereof.

Seal and Signature of the Bidder Additional City Engineer

(North West Zone)

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 Bid Security Completio

No. value of works (Rs.) n Period

1 Desilting of drainage line and storm water Rs.3,00,00,000/ Rs.3,00,000 /- 18 months

drainage Line by CCTV camera method at -

ACE-2 areas like Ognaj, Mahatma gandhi (Ex.Monso

vasahat, TP- Area, Gota Gam area and on)

other different area of Gota ward NWZ.

2. Tender (a complete set of bidding document) fee shall be Rs.3600/- in the form of Demand

Draft / Pay Order from any Nationalized Bank in favor of MUNICIPAL COMMISSIONER,

Ahmedabad, payable at Ahmedabad, which shall be non refundable. The fees shall be paid

at the time of submitting the tender.

3. Interested bidders shall download the tender documents from website

http://amc.nprocure.com and http://nprocure.com. up to Dt.28.09.2026 at 18:00 hrs

tender fee as mentioned in clause 2 above shall be paid by the bidder at the time of bid

4. All bids must be accompanied by Bid Security of the amount specified for the Works in the

above Table payable at Ahmedabad and drawn in favor of AHMEDABAD MUNICIPAL

CORPORATION, Ahmedabad. Bid Security will have to be in any one of the forms as

specified in Clause of ITB (Instructions to Bidders).

5. All Bids must be delivered to Assistant Manager "North West Zone, Zonal Office", Nr.Atithi

Hotel, Bodakdev Ahmedabad. Not later than 17:00 hrs on Dt.29.09.2026.

Seal and Signature of the Bidder Additional City Engineer

(North West Zone)

AHMEDABAD MUNICIPAL CORPORATION

ENGINEERING DEPARTMENT

GENERAL CONDITION

1. Contractor shall produce the relevant registration certificate of AMC / State Govt /Central

2. Contractor shall register the work to labour commissioner as per labour act.

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

4. Contractor should have sufficient skilled and unskilled laborers so that he shall start work at

different sites simultaneously. Contractor's having labour force available during festivals shall

only apply. Contractor cannot stop the work due to non availability of labour force.

In case progress is delayed, contractor shall be penalized 0.10% of Tender amount per day

for work done after time limit, maximum up to 10% for remaining value of work.

6. Advance payment / machinery advance will not be paid.

7. Payment of running bill will be made as per recent A.M.C. policy in force.

8. No extra payment will be made due to increase of central / state Govt. Taxes.

9. If the work is not completed within time limit the penalty will be recovered from immediate

bills of Contractors.

10. If the material i.e. MH cover C.C block etc. supplied from Municipal Corporation store then

contractor shall not claim for any extra rate for non execution of such item, partly/fully.

11. In the specifications, "as directed"/"Approved" shall be taken to mean, "as

directed"/approved" by the Engineer-in-charge.

12. Wherever a reference to any Indian Standard appears in the specifications, it shall be taken to

mean as a reference to the latest edition of the same in force on the date of agreement.

13. In "Mode of Measurement" in the specifications wherever a dispute arises in the absence of

specific mention of a particular point or aspect, the provisions on these particular points, or

aspects in the relevant Indian Standards shall be referred to.

14. All measurements and computations, unless otherwise specified, shall be carried out nearest

to the following limits:

(i) Length, width and depth (height)------- 0.01 Meter. (RMT)

(ii) Areas -----0.01 Sq. Mt. (SMT)

(iii) Cubic Contents ------0.01 Cu.Mt. (CMT)

17. The distance, which constitutes lead, shall be determined along the shortest practical route

and not necessarily the route actually taken. The decision of the Engineer-in-charge in this

regard shall be taken as final.

16. Where no lead is specified, it shall mean "all leads"

17. Lift shall be measured from plinth level.

18. Definite particulars covered in the items of work, through not mentioned or elucidated in it,

shall be deemed to be included there in.

19. Reference to specifications of materials as made in the detailed specification of the items of

work is in the form of a designation containing the number of the specification of the material

and prefix 'M' e.g. 'M-5'.

20. Approval to the samples of various materials given by the Engineer-in-charge shall not

absolve the contractor from the responsibility of replacing defective material brought on site

or materials used in the work found defective at a later date.

21. The contract rate of the item of work shall be for the work completed in all respects.

22. No collection of materials shall be made before it is got approved from the Engineer-in-

23. Collection of approved materials shall be done at site of work in a systematic manner.

Materials shall be stone at site of work in a systematic manner. Materials shall be stored in

such a manner as to prevent damage, deterioration or intrusion of foreign matter and to-

ensure the preservation of their quality and fitness for the work.

24. Materials, if and when rejected by the Engineer-in-charge, shall be immediately removed

from the site of work within 24 hours.

25. No materials shall be stored prior to, during and after execution shall be kept in sufficient

numbers and in good working condition on the site of the work.

26. All works shall be carried out in workmanlike manners per the best techniques for the

particular item.

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

for checking lines, levels, alignment of the works during execution shall be kept in sufficient

numbers and in good working condition on the site of the work.

28. The mode, procedure and manner of execution shall be such that it does not cause damage

or over loading of the various components of the structure during execution or after

completion of the structure.

29. All necessary safety measures and precaution (including those laid down in the various

relevant Indian Standards) shall be taken to ensure the safety of men, materials and

machinery on the works as also of the work itself.

30. The testing charges of all materials shall be borne by the Contractor unless recovery at one

percent towards testing charges is separately made.

31. The tenderer is required to check the web site for Addendum if any, before 48 hours of

tender submission date and time. The tenderer who quotes the tender without attaching the

addendum will be rejected.

32. As per City Engineer’s circular no.-6/2011-12 Dt.24.6.2011 all terms & conditions will be

33. Contractor has to follow Planning Department Circular No 10 Dt. 07/09/2018 strictly.

34. All rates are inclusive all the taxes including GST and no taxes will be paid separately.

35. All the relevant prevailing AMC circulars/ its time to time revisions are applicable for this work

and all the bidders are bound to follow the same, so the bidder must check before applying

for the tender.

INSTRUCTION TO TENDERERS

TENDER VALIDITY PERIOD:

The tender shall be kept valid for acceptance for a period of One Hundred Twenty Calendar

days (120) from opening of price bids.

SECURITY DEPOSIT

Within 10 days of receipt of Acceptance from the Corporation, the successful tender shall furnish

to the Corporation Security Deposit of 5% (Five percent) of the contract price Cheque or Bank

Guarantee, pay order, or demand draft of Nationalized Banks and Schedule Banks only.

CONTRACTOR'S SIGNATURE ADDITIONAL CITY ENGINEER

& STAMP (North West Zone)

AHMEDABAD MUNICIPAL CORPORATION

Section I – INSTRUCTIONS TO BIDDERS (ITB)

“TENDER DOCUMENT FOR : Desilting of drainage line and storm water drainage Line by CCTV

camera method at ACE-2 areas like Ognaj, Mahatma gandhi vasahat, TP- Area, Gota Gam area

and other different area of Gota ward NWZ. (ARC)

1. Scope of Bid

1.1 The Ahmedabad Municipal Corporation hereinafter called "the Employer" invites bids 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:

· Temporary or permanent plugging in the running sewer/ storm drain to divert the flow to existing

another line passing nearby.

· Removing debris / silt from existing storm water drain pipeline by Mechanical equipment like super

sucker with jetting machine.

· Commissioning the Pipeline of the Size cited in the BOQ with Clean/ Sewage Water.

· Construction of new Manhole on existing line with brick massionary or RCC

· Repairing / Raising existing damaged manholes and any Structures carrying sewage flow

· Maintaining Environmental measures with help of mechanical / any type of equipment for the public

as well as workers.

· Providing Safety Measures for the workers as well as public passing around the work.

1.3 The scope of work shall consist of full comprehensive operation and maintenance of above equipment

including supply of all type of consumable and spares, Diesel and Engine oil and shall include the

following services.

1.4 Provide Services of two supervisor, two mechanic for all machines, one driver cum operator, one

skilled and four unskilled labours per unit including Technical back up Support of

Engineer/Technician as per requirements. The sanitary staff for handling the suction hose and Jetting

hose shall also be provided as actual required onsite for ease & effective out put of machine at his own

1.5 Routine maintenance and servicing of machine including replacement of filters for hydraulic oil, engine

oil etc as & when required.

1.6 Provide consumables such as lubricants, hydraulic oil, oil for compressor, filters, jetting hose, suction

hoses diesel and engine oil etc as & when required.

1.7 All Minor and major repairs of machine including spares as per requirement.

1.8 Payment of road tax and insurance of the equipment to cover unforeseen events like theft, accident

,fire, riots, earthquake etc.

1.9 Contractor has to maintain all records regarding weight of disilting material/operation and no. of trips

and time required empting the same.

1.10 Record to be submitted on day to day basis to Asst.C.E. as demanded & as suggested in the format by

1.11 De-silting work must be carried out by super sucker machine only (vacuum system).

1.12 The works under this Contract shall be carried out in accordance with the bidding documents

constituting the contract and shall consist of various salient items as generally described in the tender

1.13 Bidder shall note that AMC may cancel the work at any stage of the contract. AMC can terminate the

contract incase of curtailment of the scope of the work. Contractor will not be entitled to raise any

claim regarding curtailment of the scope of the work.

2. Source of Funds

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

3. Eligibility criteria for Bidders

This invitation for bids is open to bidders who meet the following requirements:

3.1 A bidder shall have similar type experience of the work in any Govt., Semi-Govt. or ULBs of any such

organisation with the latest de-silting equipment and undertaken as per Supreme Court/ High Court

Guidelines / Direction of Govt. G.R.

3.2 Bidder should have registered his class in Ahmedabad Municipal Corporation within six months after

allocation of the work.

3.3 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)Three similar work costing 40% of the package cost or more in last Seven year.

For Purpose of this clause, the works of pipe de-silting/ cleaning with the help of vacuum technology

shall be considered for 'similar works' for this special task.

3.4 Bidder shall have experience of CCTV CAMERA de-silting of sewer diameter 300 to 1800 mm or above

in India in last 7 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.

3.5 Joint venture is not allowed for the work.

3.6 Bidders shall provide such evidence of their continued eligibility that is satisfactory to the Employer,

as the Employer shall reasonably request.

3.7 Bidders must own 2 number high capacity vacuum machine and 3 number silt carrying pay loader for

inch package tender. Bidders name should be there in RTO registration copy(RC Book) in the case of

ownership of the machine.

3.8 Joint venture agreement for machinery shall be considered in any occasion. Bidder shall submit joint

venture agreement for extra machinery to be provided in the case of providing the machinery by joint

venture agreement. Right of use these machinery by this mutual agreement between the agencies

should be stated on stamp paper of 100 Rs. only. Bidder shall note that, Right of use these machinery

on rent shall not be considered at any occasion.

3.9 Bidder shall submit commitments on stamp paper of 100 Rs. for provision of machinery required (as

stated in clause no. 3.7 and 3.8 above)

3.10 Bidder must own 1 number minimum four wheeler colour CCTV system (with sewage flow) with

camera having optical zoom with pan and tilt 360 degree in all three axis, which shall be controlled

from outside of the sewer manhole.

3.11 Bidder shall have to submit completion certificate of effective and efficient workmanship from the

organisations cited above.

3.12 At the Employer's request, the bidder having offered the lowest evaluated financial bid may be

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

the Employer at the time of evaluation of the technical bid.

3.13 Bidders must provide certificates of training of their staff, which are on their payroll at the time of

evaluation of the technical bid.

3.14 Bidder must submit Methodology for the work in respect of Honourable Gujarat High court as well as

Supreme Court order of cases related to death of labour working desilting of the sewer line.

3.15 Bidder shall have to submit affidavit stating that work shall be carried out by mechanized vacuum

technology ( by super sucker machine) ,all labour shall not enter in manhole or pipeline and

Contractor shall be solely responsible incase of any accident will occur. .

3.16 Contractor must be registered with labour laws Act. They shall have to Act and obey as per govt. rules

and regulations.

4. Qualification of the Bidder

4.1 To be qualified for award of Contract, bidders shall:

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

b) Have adequate experience, financial capacity, adequate available bid capacity and technical capability to

undertake the Contract. Confirmation of these matters may involve the updating, verification and

reassessment of information, which may previously have been considered during pre qualification.

c) The bidder shall submit the following information (Form1 of General Information) on eligibility and

qualification duly updated including any changes since pre qualification:-

5. Bid Capacity

Bidders who meet the minimum qualification criteria will be qualified only if their available bid capacity is more

than the total bid value. The available bid capacity will be calculated as under:

Available Bid capacity = (A* N* 2 - B)

A = Maximum value of similar works executed in any one year during the last five years (escalation factor as

specified in this section shall be used to bring/calculate the maximum value of works to the level of

financial year) taking into account the completed as well as works in progress.

N = Number of years prescribed for completion of the works for which bid is invited.

B = Value of existing commitments and on-going works to be completed during the next N years (period of

completion of the works for which bid is invited)

4.4 Sub-Contractors' experience and resources shall not be taken into account in determining the bidder's

compliance with the qualifying criteria.

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 :

3 Local office address (if any) :

4 Telephone / Mobile no :

5 E-mail addresses :

6 Place of incorporation/registration :

7 Year of incorporation/registration :

additional information regarding litigation, debarment, arbitration, etc.

4.2 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 in document.

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 AMC as poor performer in implementation of ongoing AMC

works e.g. Works completed after notices issued by AMC or poor quality of work or completed

after time limit or not responsive to Engg.incharge instruction.

d) In case of one contractor remains lowest in most of the such North west Zone grouting

work tenders, then in such case, AMC can award such tender to other contractors.

5 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 Employer.

6. Cost of Bidding

6.1 The bidder shall bear all costs associated with the preparation and submission of his bid

and he Employer will in no case be responsible or liable for those costs.

7.1 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.

7.2 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.

B. Preparation of Bids

8. Language of Bid

8.1 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 Documents comprising the Bid

The bids shall be submitted in hard copy and two copies, one marked as “original” and other

marked as “Duplicate”, both of which comprise the following documents:-

Tender Document:

i) Bid Security for an amount as specified in the Invitation for Bids (IFB).

ii) Power of Attorney

iii) Information as specified.

iv) Any other material / information required to be submitted in accordance with these

Instructions to Bidders (ITB).

The Tender Document shall be hard bound. Bid security shall be furnished in “Original” set

In case of any ambiguity the “Original” set of document shall prevail.

The bidder shall prepare and submit two copies of the bid in original and duplicate.

10.1 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 by the bidder.

10.2 The bidder shall fill in percentage rate above or below and total amount (both in figures and

10.2 The bidder shall fill 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 along with total bid

price derived after application of percentage above or below (both in figures and words).

Items (for which rate has been provided) against which no quantity is entered will be paid for

by the Employer on actual measurement onsite when executed.

Any corrections should be initialed.

All pages of the Bill of Quantities shall be initialed and stamped.

11. Bid Validity

11.1 Bids shall remain valid for a period of 120 days (one hundred twenty days) after the deadline

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

valid for a shorter period.

11.2 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 there to shall be made in writing or by fax. A bidder may refuse the

request without forfeiting his bid security. A 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 14 in all respects.

12. Bid Security

12.1 The bidder shall furnish as part of its Bid, a Bid Security in the amount in the Invitation for Bid

(IFB) for particular work(s). The Bid Security shall be drawn in favor of MUNICIPAL

COMMISSIONER, Ahmedabad, and may be in one of the following forms:

a) Deposit-at-call Receipt from any Nationalized / Scheduled Bank approved by the Reserve

Bank of India (RBI).

b) Bank Guarantee from any Nationalized or RBI approved foreign bank having net worth of

more than Rs.500 crore of Indian operation and acceptable to Employer.

The format of Bank Guarantee shall be in accordance with the AMC requirement.

12.2 The Bid Security of the unsuccessful bidders, except for L1, L2 and L3 bidders will be returned

as promptly as possible.

12.3 The Bid Security of the successful bidder, along with second and third lowest tenders,

will be returned when the bidder has furnished the required performance security and signed

12.4 The Bid Security may be forfeited

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

b) If the bidder does not accept the correction of his bid price.

c) In the case of a successful bidder, if the bidder fails within the specified time limit to

i) Furnish the required Performance Security, ii) sign the Agreement.

13. Format and Signing of Bid

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

Instructions to Bidders.

13.2 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.

13.3 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.

C. Submission of Bids

14.1 The inner and outer envelopes shall

a) Be addressed to the Employer at the following address:

Assistant Manager(New West zone) , "New West Zone Office", Old Memnagar Nagar

Palika Building, Near Manav Mandir, Memnagar, Ahmedabad - 380

b) Bear the following identification:

(c) Indicate the name and address of the bidder.

TENDER FOR Desilting of drainage line and storm water drainage Line by CCTV camera method

at ACE-2 areas like Ognaj, Mahatma gandhi vasahat, TP- Area, Gota Gam area and other

different area of Gota ward NWZ. (ARC)

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

for the misplacement or premature opening of the bid.

15. Deadline for Submission of Bids

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

and date specified.

15.2 The Employer may, at his discretion, extend the deadline for submission of bids by issuing an

amendment, in which case all rights and obligations of the Employer and the bidders

previously subject to the original deadline will thereafter be subject to the deadline as

Any bid received by the Employer after the deadline for submission of bids shall not be

17. Modification and Withdrawal of Bids

17.1 The bidder may modify or withdraw his bid after bid submission, provided that written notice

of the modification to the Employer prior to the deadline for submission of bids receives

withdrawal. Any MODIFICATIONS in respect of tender document shall be submitted in

separate sealed envelope duly marked so.

17.2 The bidder's modification or withdrawal notice shall be prepared, sealed, marked and

delivered with the outer and inner envelopes additionally marked "MODIFICATIONS" or

"WITHDRAWAL" as appropriate.

17.3 No bid shall be allowed to modify by the bidder after the deadline for submission of bids.

17.4 Withdrawal of a bid during the interval between the deadline for submission of bids and the

expiration of the period of bid validity may result in the forfeiture of the Bid deposit.

D. Bid Opening and Evaluation

18 Opening of Tender (Bid)

18.1 The Employer will open the outer envelope of all the bids received for the package (except

those received late) containing the sealed Tender volume and announce the names of (i)

bidders, (ii) bidders who have submitted modification of Tender bids, and (iii) bidders who

have given notice for withdrawal of their bids in the presence of bidders or their

representatives who choose to attend on the date and time mentioned in the ITB. 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.

18.2 Bids for which acceptable notice of withdrawal has been submitted pursuant to Clause

mentioned previously shall not be opened.

18.3 Bidders detail and Tender fee, E.M.D. shall be opened first. The Employer at the opening will

announce bidder’s names, ‘Modification of Tender’, the presence/or absence of Bid Security,

the amount and validity of Bid Security furnished with each bid, is valid registration and such

other details, as the Employer may consider appropriate.

18.4 The bidders or their representatives who are present shall sign attendance sheet evidencing

their attendance.

18.5 The Employer shall prepare besides the record of bid opening, minutes of the Bid opening,

including the information disclosed to those present in accordance with Clause mentioned

19. Examination of Tender and Determination of Responsiveness of Tender

19.1 If the Bid Security 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.

19.2 Subject to confirmation of the Bid Security by the issuing bank, the Tender volume

accompanied with valid Bid Security will be taken up for further evaluation. In case, the Bank

does not confirm the Bid Security, the bid shall be rejected as non-responsive and no further

evaluation carried out.

19.3 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 that the Employer may require.

19.4 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

non-conforming deviation or reservation.

20. Opening of Tender

20.1 The Employer will open the Tender volume of those bidders whose document has been

determined to be substantially responsive in accordance and who have the required available

bid capacity, in presence of the bidders or their representatives who choose to attend on the

date intimated to such bidders. In the event of specified date of Tender volume opening being

declared a holiday for Employer, the ‘Tender volume’ shall be opened at the appointed time

and location on the next working day.

20.2 The names of the bidders whose Tender volume is found to be substantially responsive, the

bid prices, the total amount of each bid, any discount, ‘modifications of B.O.Q and such other

bid prices, the total amount of each bid, any discount, ‘modifications of B.O.Q and such other

details, as the Employer may consider appropriate will be announced by the Employer at the

opening of the Tender volume. Any bid price, which is not read out and recorded at the bid

opening, will not be taken into account in Bid Evaluation.

20.3 The bidders or their representatives who are present shall sign attendance sheet evidencing

their attendance.

20.4 The Employer shall prepare besides the record of bid opening, minutes of the Tender volume

opening including the information disclosed.

21. Examination of Bids and Determination of Responsiveness of Bid

21.1 The Employer will determine responsiveness of each Tender volume with respect to filled

percentage above or below of total amount of Priced Bill of Quantities, Technical

percentage above or below of total amount of Priced Bill of Quantities, Technical

Specifications, Drawings and other relevant requirement of bidding documents.

21.2 A substantially responsive Tender volume is one which conforms to all the terms, conditions

and specifications of the bidding documents, without material deviation or reservation. A

material deviation or reservation is one (i) which affects in any substantial way the scope,

quality or performance of the Works; (ii) which limits in any substantial way, inconsistent with

the bidding documents, the Employer's rights or the bidder's obligations under the Contract; or

(iii) whose rectification would affect unfairly the competitive position of other bidders

presenting substantially responsive Tender volume.

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

may not subsequently be made responsive by correction or withdrawal of the non-conforming

deviation or reservation.

22. Correction of Errors

22.1 Tender volume determined to be substantially responsive will be checked by the Employer for

any arithmetic errors. Arithmetic errors will be rectified on the following basis:-

i) Where there is a discrepancy between the figures and words, for % and amount, the figure

in words will govern and

ii) Where there is discrepancy in total amount arrived by addition of percentage (above or

ii) Where there is discrepancy in total amount arrived by addition of percentage (above or

below), the amount arrived by addition percentage (above or below) as written in word shall

22.2 The amount stated in the Form of Bid will be adjusted by the Employer in accordance with the

above procedure for the correction of errors and shall be considered as binding upon the

bidder. If the bidder does not accept the corrected amount of bid, his bid will be rejected, and

his Bid Security may be forfeited.

23. Evaluation and Comparison of Tender volume

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

be substantially responsive in accordance with Clause 23 and qualified for award of Contract.

23.2 In evaluating the Tender volume, the Employer will determine for each Tender volume the

valuated Bid Price by adjusting the Bid Price as follows:-

a) Making any correction for errors;

b) Making appropriate adjustments to reflect any price modifications offered.

23.3 If the Bid of the successful Bidder is seriously unbalanced or extremely higher / lower in

relation to the Employer’s estimate of the cost of the items of the Works to be performed

under the Contract, the Employer may require the bidder to produce detailed price rate

analysis for any or all items of the Bill of Quantities, to demonstrate the internal consistency of

those prices with the construction methods and schedule proposed. In case, AMC finds rates

extremely below estimated SOR rate or Market Rate than Tender shall be rejected and second

lowest tenderer may be awarded the work.

23.4 A bid, which is unrealistically lower then estimate and which the bidder, could not

substantiate satisfactorily, may be rejected as non-responsive.

24 Clarification of Bids

24.1 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 AMC and the response by bidder shall be in

writing or by cable/fax, but no change in the price or substance of the bid shall be sought,

offered or permitted except as required to confirm the correction of arithmetical errors

discovered by the Employer in the evaluation of the bids.

24.2 No bidders shall contact the AMC staff on any matter relating to his bid from the time of bid

opening to the time contract is awarded.

24.3 Any effort by the bidder to influence the the AMC staff in the bid evaluation, bid comparison

or contract award decisions may result in the rejection of his bid.

25.1 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.

F. Award of Contract

26.1 The Employer will award the Contract to the bidder whose bid has been determined to be

substantially responsive to the bidding documents and who has offered the lowest Evaluated

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

the provisions of previous Clauses and (ii) qualified in accordance with the provisions of

previous Clauses.

27. Employer's Right to accept any Bid and Reject any or all Bids

27.1 The Employer reserves the right to accept or reject any bid and to annul the bidding process

and reject all bids, at any time prior to award of Contract, without thereby incurring any

liability to the affected bidder or bidders or any obligation to inform the affected bidder or

bidders of the grounds for the Employer's action.

28. Notification of Award

28.1 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 (hereinafter and in the Conditions of Contract called "the Letter of

Acceptance") shall name the sum which the AMC will pay the Contractor in consideration of

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

the Contract (hereinafter and in the Conditions of Contract termed "the Contract Price").

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

29. Signing of Agreement

29.1 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.

30. Performance Security

30.1 Within 10 (Ten) days of the date of receipt of the Letter of Acceptance, the successful bidder

shall deliver to the Employer, a Initial Performance Security in the form of a Bank Guarantee

for an amount equivalent to 5% (five percent) of the Contract Price plus additional security for

unbalanced bids in accordance with relevant Conditions of Contract.

30.2 The Performance Security to be provided by the successful bidder in the form of a bank

guarantee as per format shall be issued from any Nationalized / Scheduled bank.

31. Corrupt or Fraudulent Practices

31.1 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 execution.

i) “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

ii) “fraudulent practice” means a misrepresentation of facts in order to influence a

procurement process or the execution of a contract to the detriment of the 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 competition.

Seal and Signature of the Bidder Additional City Engineer

(North West Zone)

AHMEDABAD MUNICIPAL CORPORATION

Section II - CONDITIONS OF PARTICULAR APPLICATION

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

do high quality work within the given time schedule.

2. 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.

3. All information has to be typed or hand written legibly. All pages of the Bid have to be Initialed

4. ALL INFORMATION HAS TO BE SUBMITTED IN THE PRESCRIBED FORMAT ONLY.

Projects for which incomplete information has been provided will not be considered for

evaluation. The Bidder may attach separate sheets if so required. However, the final bound

document submitted, has to be submitted in vertical A4 size (210 mm X 297 mm) except Vol.

5. The scope of work, project description mentioned in the document is indicative and is likely to

change during detail design. Project brief, along-with the schematic drawings and colored

photographs, is provided to assist the bidder in understanding the fundamental and specific

requirements of the project.

6. Conditional tenders will not be accepted.

7. AMC’s decision for selection or rejection of the offers shall be final and binding to all.

8. Bidder should provide information as mentioned in the prescribed forms.

Information other than that related to this work shall not be considered for evaluation.

9. 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.

10. 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

will be rejected.

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

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

or are conditional tenders, will be rejected.

13. Municipal Commissioner reserves the rights to reduce/ increase the scope of work and

contract without assigning any reason thereof.

14. DEFECTS: For completion of any work/ part thereof, contractor will be required to request in

writing, to get completion certificate from Additional City Engineer . Date of completion for

start of defect liability period will be considered as the date mentioned in the completion

The contractor shall be required to make good all the damages / defects identified and

conveyed to him, during the entire defect liability period. The method and time limit of

rectification will be decided by the Engineer in charge. If he fails to carry out rectification as

per the instructions, the same will be carried out at his cost and it shall be recovered from

the amount retained.

16. All the material and other test expenses shall be borne by the contractor. Contractor shall

have to provide vehicle and other communication facilities to visit plant and testing

17. Contractor shall have to make his own arrangements for water and electricity for the purpose

of construction work at site at his own expense.

18. If the contractor fails to execute the said works within prescribed time limit, the said work will

be carried out at the risk and cost by other contractors with 20 % supervision charges as may

be decided by the Additional City Engineer.

19. Safety and Signage

Contactor 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

The Contractor has to make all the necessary arrangements for making all the temporary

diversions for proper working at site including traffic signage, safety cones, traffic blinkers,

barricading tapes, red and green flags/lights etc for making easy smooth and safe conditions

for the traffic. The Contractor shall and must provide above at his own cost. If the

Contractor fails to comply this clause, Rs. 500/- per day shall be recovered from his bill.

20. Tax, Duties on Materials

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

govt.duties etc. on material procurement or any other component for the works from any

source shall be borne by the contractors.

21. Submission of project schedule:

Contractor has to submit the following documents along with the qualification data of the

tender failing in which shall lead to rejection of the tender.

Contractor shall submit the detailed Project schedule showing break up for the various tasks to be

performed in order of their occurrence during the project in Microsoft Project/Prima Vera format.

22 For Flakiness and Elongation Index norms adopted by AMC shall be made applicable.

23. For non-bituminous, bituminous and concrete works, the black trap aggregates of required size

shall be procured from quarry situated in Sevaliya / Timba region or equivalent. Prior approval of

source/ material by Additional City Engineer shall be required.

24. 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. .

25. As per St. Committee's resolution 0.5% testing charges shall be deducted from each R.A.Bill

and the amount of actual Testing charges shall be adjusted in the final bill.

26. 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 Additional City Engineer

(North West Zone)

AHMEDABAD MUNICIPAL CORPORATION

FORM OF BID AND APPENDIX TO BID

(The Appendix forms part of the Bid. Bidders are required to fill up all the blanks in the form of

NAME OF THE CONTRACT: Desilting of drainage line and storm water drainage Line by CCTV

camera method at ACE-2 areas like Ognaj, Mahatma gandhi vasahat, TP- Area, Gota Gam area

and other different area of Gota ward NWZ. (ARC)

Deputy City Engineer (North West Zone)

"North West Zone, Zonal Office",

Nr. Atithi Hotel,

Ahmedabad. Gujarat

1. Having examined the Conditions of Contract, Specifications, Bill of Quantities,

Drawings and Addenda No._______ for the execution of the above named works, we, the

undersigned, offer to execute and complete such works and remedy any defects therein in

conformity with the Conditions of Contract, Specifications, Bill of Quantities, Drawings and

Addenda for the sum of Rs_______________ (Rupees______________________

My/our offer works out as under:

Amount put to tender _________ Amount put to tender Rs. _______________

Net Amount Net Amount

2. We acknowledge that the Appendix to Bid forms part of our Bid.

3. We undertake, if our Bid is accepted, to commence the Works on Site within the period

stated in the Appendix to Bid hereto after receipt of an order of the Engineer’s notice to

commence, and to complete and deliver the sections and the whole of the Works

comprised in the Contract within the period stated in the Appendix to Bid hereto.

4. If our Bid is accepted, we will furnish Performance Security (ies) in the form of Bank

Guarantee(s) to be jointly and severally bound on us in accordance with the Conditions of

5. We agree to abide by this Bid for the period of one hundred and twenty (120) days after

the date of bid opening, and it shall remain binding upon us and may be accepted at any

time before the expiry of that period.

6. Unless and until a formal Agreement is prepared and executed, this Bid, together with your

written acceptance thereof, shall constitute a binding contract between us.

7. We understand that you are not bound to accept the lowest or any Bid you may receive.

8. All the partners of our Joint Venture are legally and severally bound by this Bid1.

9. Municipal Commissioner, Ahmedabad has right to reject any or all bids without giving any

Dated this ____________ day of _______________

in the capacity of __________________ duly authorised2 to sign Bid for and on behalf

Address (in block capitals)

1. To be deleted if the bidder is not a Joint Venture.

Certified copy of Power of Attorney/Authorization for signature shall be furnished by the Bidder

in accordance with Clause 20 of Instruction to Bidders (Section I).

Seal and Signature of the Bidder Additional City Engineer

(North West Zone)

AHMEDABAD MUNICIPAL CORPORATION

ENGINEERING DEPARTMENT

GENERAL SPECIFICATION

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

proportion to time limit.

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 on case 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

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 (120) 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 the work is not carried out within the specified time limit. from the date of order to start the work the penalty of

Rs.- (As per Form - B1) per day of delay shall be recovered 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:-

1. Conditional tender shall not be accepted.

2. All tenders are to be submitted in duplicate without which the tenders are liable to be rejected.

3. In case of tender downloaded from website, tender fee & EMD should be submitted in form of demand draft or

4. 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.

CONTRACTOR'S SIGNATURE ADDITIONAL CITY ENGINEER

& STAMP (North West Zone)

AHMEDABAD MUNICLPAL CORPORATION

MAHANAGAR SEVA SADAN

NORTH WEST ZONE

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.

(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. 1783 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 ADDITIONAL CITY ENGINEER

& STAMP (North West Zone)

AHMEDABAD MUNICLPAL CORPORATION

MAHANAGAR SEVA SADAN

NORTH WEST ZONE

DETAILS OF BANK ACCOUT

1 Contractor's name

3 Telephone/ mobile no.

4 Permanent account no. (PAN

5 Name of the bank

6 Branch name and address

11 Contractor/ supplier's

signature and stamp

SPECIFICATIONS OF MATERIALS – CIVIL

This section gives detail specifications for mainly used materials, for other materials refer Building

Specifications.

For materials relevant specification of Building Specificat shall apply.

TECHNICAL SPECIFICATIONS

NAME OF THE WORK : Desilting of drainage line and storm water drainage Line by CCTV camera

method at ACE-2 areas like Ognaj, Mahatma gandhi vasahat, TP- Area, Gota Gam area and

other different area of Gota ward NWZ. (ARC)

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 least 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 least 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

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

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

shall be extended from bottom of trench to at least 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 manholes, which are in use, the Contractor

shall ensure that manhole covers are opened and manholes are ventilated at least for an

hour before workers are allowed to get into them. Manholes 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 to operator.

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

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 manhole to avoid

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

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

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

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

Signature of Contractor Additional City Engineer (NWZ)

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,

manholes, 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 least 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

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

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

ventilation system 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

2380.7 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 manhole 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 discharges.

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

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

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

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

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

1500 ppm. (IDLH-Immediately Dangerous to Life and Health)

Note: Some gas detecting machine sensors are cross sensitive, H 2S being detected by

the CO 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 least amount 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 ppm).

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, H 2S 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

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

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 20 0C and

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

work must 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 3 conditions

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

Machine…………………………………….

( ) The work teak is trained and equipped

Monitor while occupied: Yes/No. 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

1. 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 manholes are

to be opened, two on the up-stream and two on the down-stream side of the two

manholes, on the actual stretch to be cleaned or desilted. The manholes 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

manhole. 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 manholes to prevent pedestrians etc. from

falling in. tripod stands with flags it should be written in white bold letters “Danger

1.2 When working at night, lantern fitted with red globe and lights shall be hung from the

tripod stand. Each manhole 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 manhole, 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 manhole 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 Manholes 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 manholes and the same should not be more then

1.6 Wet lead acetate paper shall be inserted in the manholes which should nit turn even light

brown or black. If the lead acetate paper turns light brown or black, then the manhole

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 manhole 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 manhole 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 manhole 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

After the lead acetate paper test, a lighted safety lamp shall be inserted in the manhole,

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 manhole.

2. Working Inside the Manhole

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 manhole to allow entrapped gases

within silt pockets to escape before allowing the labourers to go down into the manhole.

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 manhole, 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 manhole at a time.

If the labourers who are working inside the manhole show slight discomfort, they should

be asked to come up or pulled up. The labourers who are working inside the manhole

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 manhole. The workers

entering the manhole 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 manhole shall wear Harness belt around his waist. In spite of the

manhole 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 manhole and also during desilting.

On completion of the work all manholes shall be checked and it should be ascertained that

the same are properly closed.

3. Safety (General)

Proper ventilation shall be maintained in the manhole 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 manhole 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 manhole 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.

4. 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 / manholes, 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 manhole 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

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.

5. 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 manhole. 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 manhole 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

manhole. 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

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 where.

All the silt removed from manholes / chambers near bus stop or junctions should be

transported immediately to a place approved by the Engineer at say 100 meters from the

manhole, 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

manhole. If it is found that any unauthorized person has entered the manhole 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.

6. 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).

7. 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 least 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.

8. 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.

9. 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.

10. 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 least 6 mm for each additional 30 cm of length. Uniform step spacing shall

not exceed 30 cm.

11. 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

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

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

shall be extended from bottom of trench to at least 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.

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

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

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.

14. 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.

15. Workers employed on mixing asphaltic materials, cement and lime mortars/concrete shall

be provided with protective footwear, hand gloves and goggles.

16. Those engaged in handling any material, which is injurious to eyes, should be provided

with protective goggles.

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

18. Stone breakers shall be provided with protective goggles and protective clothing and

seated at sufficiently safe intervals.

19. When workers are employed in sewers and manholes, which are in use, the Contractor

shall ensure that manhole covers are opened and manholes are ventilated at least for an

hour before workers are allowed to get into them. Manholes so opened shall be cordoned

off with suitable railing and provided with warning signals or boards to prevent accident to

20. 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-made paint.

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.

21. 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.

22. se of hoisting machines and tackle including their attachments, anchorage, and supports

shall conform to the following :

22.1 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.

22.2 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.

23. 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.

24. 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.

25. 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

26. 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.

27. 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

28. 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.

29. 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.

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

operation of any other Act or Rule in force.

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

breaking the dummies constructed to plug the pipe inlet and outlet in the manhole to avoid

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

Supreme court related to de-silting the sewerage pipe line & manholes. He shall take care of not

lowering labour in the manhole as well pipeline during the work. He shall fully responsible for

any accident if occurred during the work / contract period.

Signature of Contractor Additional 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 manhole or

chamber(otherwise employer will direct to start the de-silting work) to the upstream

access manhole or chamber and shall include all operations necessary to remove grease,

slime, silt and loose materials from the sewer bore and manhole 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 MANHOLES :

 Inspection of manhole conditions in accordance with WRC / MSCC is will be carried out

concurrently during the inspection of sewer.

 Manhole 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

 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

 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 least 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 operator

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 manhole 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

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 manholes.

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 manhole of the

section being cleaned. A suitable sand trap, weir, dam, or suction in the next downstream

manhole 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

manholes 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 the Site.

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 manhole. 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 manholes 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 Manhole Number and VCR counter number

(3) To Manhole 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 manholes, and shall pan the

camera to document the conditions of manholes. 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

30 feet per minute. The CONTRACTOR shall stop and thoroughly inspect each of the

[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

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 manhole as well as Pipe section with the use of

machinery and all necessary instruments. Contractor shall work outside of the manhole

and nobody shall work inside of the manhole in any occasion. If he will have to put any

labour in manhole he shall make following necessary arrangement

A. Contractor shall keep both end of pipe in the manhole open if there will be any labour

work in the manhole. He has to suck the foul gases from the manhole as well as pipe and

blow the fresh air in the manhole as well as pipe section.

B. Contractor shall protect / Barricade the working site if any cover of manhole will be open

for the work. He shall put the caution board around the Opened Manhole.

C. Contractor shall keep the manhole opened without any body in the manhole & blow the

air as well as fresh water in the manhole check whether the gas has been removed from

the manhole and then after he shall allow for labour in the manhole.

D. Contractor shall put the Gas detector in the manhole as well as put the lightened candle in

the manhole so that Oxygen gas can be checked in the manhole.

E. Contractor shall put the alarm system in the manhole.

F. Any labour shall lower down in the manhole 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

manhole so that any hazardous may not be arises.

H. Contractor shall arrange Mucadum and Supervisor continuous on the site during the

I. Contractor shall arrange the training for the labours working in the manhole to operate

the safety measures.

J. Contractor shall provide Uniform as well as operating tools to work in the manhole.

K. Contractor shall make the arrangement that every cover of the manhole shall be fixed on

the manhole sheet after the work will be completed.

L. Contractor shall remove the sludge/ silt removed from the manhole and pipe section

such a way that it may not be dangerous for health of public and traffic of the road around

vicinity of the work area.

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 Manhole on his cost.

R. Contractor shall arrange water tanker as and when required water during the

commissioning of the network.

Seal and Signature of the Bidder Additional City Engineer

Date: Ahmedabad Municipal Corporation

D4:- MEASUREMENT FOR INDIVIDUAL ITEMS

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. bases. Contractor shall construct temporary pucca dummy in

main line or branch lines opening in the MH 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

Contractor shall open the dummy after de-silting work completed and remove all debries from

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 on Rmt bases

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

Measurement shall be considered on Running meter length bases. Item includes De-silting

work for existing following size dia. sewerage line and its MH 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 safety equipments 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 manhole contractor shall

dewater from the manhole 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 manhole / 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 manhole 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

Measurement shall be on Rmt bases

Cutting of bituminous road of DBM and Asphalt concrete of any thickness.

Measurement shall be on Smt bases

Brick work using common burnt clay building bricks having crushing strength not less than

35kg./Sq.Cm. in foundation and plinth in Cement Mortar 1:5.(1-Cement:5-finesand) (B)

Conventional (upto 10 ton)including racking out joints, curing scaffolding etc complete as

directed by any height.(Bldg SOR 2015-16 Rate)

Measurement shall be on Cmt bases

Finding & Raising buried manhole underneath road using Brick massonery with Brick

Strenghth 35kg / quare cm and cement morter 1:4 and CC work up to new road level as per

instruction of engineer in charge

Measurement shall be on No. bases

Providing and fixing F.R.C. Extra Heavy Duty (EHD-35) Manhole Covers & Frames Cover :

728mm ø & 100 mm thick circular cover,35.00 MT load design, 100x2mm MS flat allround,

16mm ø plain round bar for lifting the cover & should be fitted with plastic cups. Frame :

mm ø clear opening, outer size- 888x888x175 mm. On the upper periphery of frame 25 x 3 mm

wide MS flat should be well embed in concrete to protect the edges of frame. FRC E.H.D.-35

manhole cover & frame incl. carting to the work site etc.comp.(Based on rate of central store)

Measurement shall be on No. bases

Providing TMT Bar FE 415 reinforcement for R.C.C.work including bending, binding and

placing inposition complete up to floor two level (upto 10 ton) including cost of steel and

binding wire for reservoirs / structures only including lift up to 6 meter height or depth below

G.L.for all diameter.(Bldg SOR 2015-16 Rate)

Measurement shall be on Kg bases

Survey to determine sewer alignment, levels, M/H positions, proximity of structures,

measurement of exact length between manholes and providing two sets of autocad drawing as

per instruction of Engg. incharge.(App.C.C.T.V. Disilting Tender Rate) Contractor shall find the

buried MH by high frequency metal detector or other latest modified technology equipment.

He shall survey the existing manhole and submit the drawing to the engineer in charge of the

Measurement shall be on Rmt bases

Kaccha/Pakka Dummy work in line

Contractor shall construct temporary pucca dummy in mainline orbranchlines opening in the MH

toclosethesewer flow for de-silting thesewerpipe inworking stretch and todivert the sewage

flowbybrick missionary orother means in optional pipe.

Contractor shall openthe dummy after de-silting work completed

And removal debries fromthemanhole.

It also includes ofline commissioning afterde-silting itwith ifavailable nearby freely.If it

Not available in the hisowncost.

Measurement shall be on Rmt bases

MH chamber clean work with safety meaureser s and Also Includes supply of all material

Labour tool and Plants Temporary Power Connection with stand by generator of sufficient

power output gas detector forced air vantilators and provision of safty equipment as per

guideline laid by ISI1972 (and 1987) International standard Traffic Contrl arrangements and

Proper Lighting at night barricading display of sign boards ensuring highcourt

Measurement shall be on No. bases

Supplying Electric Breaker Machine for RCC Sl abor Asphalt Demolishing Work on site by

using Operator, fuel, power Supplyetc. Complete as Directed. (No payment should be

allowed for non working condition of machine ryand for pipe line excavation and M.H.work.

Allowed only for breakdown work.

Measurement shall be on Shift bases

Providing & Supplying hydra crane Machine of 12 tone capacity on rental basis incase of

emergency situation and break downtype work & also during unavoidable condition as per

instruction of engg. incharge , rate includes all nece. shifting, fuel and operating charges .(No

payment should be allowed for non working condition of machinery)

Measurement shall be on Per 8 hrs shift bases

Supplying Pneumatic Breaker Machine for RCC Slab or Asphalt Demolishing Work on site by

using Operator, fuel, power Supplyetc. Complete as Directed. (No payment should be allowed

for non working condition of machinery and for pipeline excavation and M.H. work. Allowed

only for break down work) ( Based on Previously approved rate by CEsir )

Measurement shall be on Hrs bases

Providing & Supplying JCB Machine on rental basis in case of emergency situation and break

down type work & also during unavoidable condition as per instruction of

engg. in charge, rate includes all nece. shifting

,fuel and operating charges and stacking of useful & non-useful materials separately up to

store. (No payment shouldbe allowed for non working condition of machinery and for

pipeline excavation and laying work) (Based on Previou

sly approved rate by CE sir)

Measurement shall be on Hrs bases

Hiring and operating the 20KV 3 Phase Electric Generator for operating desilting machinery,

and lighting and other requirements with Arranging diesel torun the D.G. Set Do As

Directed. 8 Hrs Shift. (No payment should be allowed for non working condition of machinery

) (Based on Previously approved rate by CE sir )

Measurement shall be on Shift bases

Hiring and operating Mud Pumps incl. Cost of fuel and operator including the cost of to and

fro sportation, laying of the delivery hoses as required, lowering and lifting the

pumps as and when required etc. complete. Set Do As Directed. (No payment should be

allowed for non working condition of machinery) (Based on Previously approved rate by CE

Measurement shall be on H.P/Hr bases

CONTRACTOR'S SIGNATURE Add. CITY ENGINEER

& STAMP (North West Zone)

AHMEDABAD MUNICIPAL CORPORATION

ENGINEERING DEPARTMENT

GENERAL CONDITION

As per City Engineer’s circular no.-6/2011-12 Dt.24.6.2011 all terms & conditions will be

Seal and Signature of the Bidder Deputy City Engineer

Date: (North West Zone)