CNT/WSS/MWB/3528/2023-24

Amount

Pipe line

Cutting Asphaltic / Cement concrete road - Hiring of hydraulic jack hammer for cutting the road for a thickness of 30cm

Providing Iron Barricading of size 2.50 m width and 1.75 m height using 40x40x4 mm angle for outer frame supports, 25 x 25 x 3 mm angle for inner frame supports and 20 gauge thickness MS sheet for name board (as per drawing) including cutting, welding, fabrication charges and one coat of primer and 2 coats of enamel paint of approved quality, writing "METRO WATER" & work detail/ caution sign, providing necessary interlocking arrangements with adjoining units, fixing danger flags, danger lights, reflectors, fixing stickers etc, including watching during night and placing the barricading units as directed at the sites

Supplying and Laying D.I. Pipes of the following sizes of socket @ spigot end, push - on - joint DI pipes of classification K7 conforming to IS: 8329/2000 in standard lengths with cement mortar lining inside and outside Zinc coating, including Labour charges for loading, unloading and stacking at the site etc., including earthwork excavation for trenches in hard stiff clay, blackcotton, hard red earth, shales, murams, gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil depositing the earth on banks with initial lead of 10m and initial lift of 2m conveying to the site of work, lowering into the trenches, and aligning, jointing, refilling the trenches with excavated soil, watering and ramming to consolidation, disposal of surplus earth etc., complete for the pipes of following diametres at the following depths.(Rate includes salvage value of old pipes & specials) at 1.5m deep

200mm dia

100mm dia

Cutting of DI mains true to axis and finishing the ends complete.

200mm dia

100mm dia

Supplying ,Conveying and fixing following sizes of DI specials of DI push - on joint specials as mentioned below conforming to IS: 9523/2000 including loading, unloading and stacking at the site etc as directed by the engineer at site, and including earthwork excavation, refilling with excavated soil, watering and ramming to consolidation and disposal of surplus earth etc complete.

100 x 100 x 100mm DI A/S Tee

200 x 200 x 100mm DI A/S Tee

200mm 90 degree bend

100mm 90 degree bend 11Kgs *138.20

100mm end cap(6kgs *138.20)

200mm end cap

200mm dia

100mm dia

Conveying and fixing MJ collar

200mm dia

100mm dia

Jointing the C.I/ D.I Double flanged pipes and specials with rubber insertion to the required specifications with M.S. bolts and nuts, complete including cost of jointing materials.

200mm dia

100mm dia

Testing of DI pipes with hydraulic testing equipment by filling with water (including cost of water) and testing to recommended pressure in convenient stretches and attending the bursts if any occurred during the test, excluding the cost of pipes, including other incidental and operational charges, etc., complete for the following diametres of pipes.

200mm dia

100mm dia

Supplying and laying of MDPE 20mm (PE80) Blue pipe (IS:4427) with necessary specials including earth work excavation laying jointing testing and refilling the trenches including disposal of earth etc.complete.

Making bore and tapping in the DI pipe line,supplying and fixing of specials consisting of plastic moulded clamp saddle with (SS304) female threaded metal insert ,sealing rubber and plastic wide strap including suitable bolts and nuts,Polypropylene compression fitting adopter with metal insert(SS 304-male threaded),Polyproplene compression fitting 90 deg elbow, UPVC Ball Valve(stop cock) with compression joint at one end and female threaded at other end and suitable enclosure(HDPE) with top side openable for housing UPVC Ball Valve(stop cock) and testing house service connections including cost of water etc complete for following sizes.

Testing house service connection

Construction of Sluice Valve Chamber of following sizes in second class brick work in CM 1:4 proportion with 12 mm thick outside plastering and 20mm thick inside plastering in CM 1:3 proportion, RCC cover slab in CC 1:2:4 proportion using 20 mm jelly, chamber foundation and bed block in PCC 1:3:6 proportion using 40 mm jelly including cost of reinforcement and labour charges, CI steps, etc. as per drawing. i)1.35mx1.20mx1.55 m size chamber for upto100mm to 250mm Dia Sluice Valves

Disposal of surplus earth

Hire charges for diesel pumpset above 3HP to 7.5 HP including cost of fuel, machinist etc

Interconnection work to the existing main including cutting the pipe, fixing specials, lead jointing and bailing out water

Cutting 150mm to 100mm (6” to 4”)

Cutting 250mm to 175mm (10” to 7”)

Earthwork excavation and depositing on bank with initial lead of 10 metres and initial lift 2.00m in hard stiff clay stiff black cotton, hard red earth, shales, Muram, gravel, stoney earth and earth mixed with small size boulders S.S. 20-B.(excluding timbering and bailing out sub-soil water) as per P.W.D. standard schedule of rates for Chennai City for IC work

Damaged house sewer service line with 90mm PVC

Storm water crossing

Providing and laying, spreading and compacting graded stone aggregates to Wet Mix Macadam 250 mm thick specification including premixing the materials with water at OMC in mechnanical mix plant carriage of mixed material by tipper to site laying in uniform layers with pavers in Sub Base/ Base course on well prepared surface and compacting with vibratory roller to acheive the desired density including cost of material, labour charges, rentals for machinery, fuel and all other incidental charges etc., complete as per clause 406 of MORTH Rev-5

Rectification of damaged other under ground utilities like TNEB, BSNL, Internet cables street light cables etc..

The contractor must obtain the existing static GCP points from CMWSSB which shoud be considered as the control point with known coordinates X,Y and Z. Survey consultant to ensure the closing error is wtihin permissible limits while transfering the levels from the existing static GCP points and the same to be presented as a report. The same process shall be adopted for random verification of positional accuracy of points established using the PBMs as base.<2 km

For the points Underground/ Surface Assets along the roads

Construction of dead end chamber

Hire charges for power drilling machine for Cutting the asphaltic cement concrete road.

Excavation in all types of soils as per SS 20B with initial lead of 10m and lift of 2.0m

Stock brick work with II class bricks in cement mortar 1:4 for 23 cm thick wall.

Plastering with cement mortar 1:3 for 20mm thick.

Plastering in C.M.1:3 mix, 12mm thick

Providing form work with centering for soffits of reinforced cement concrete slabs or plain surfaces including strutting upto 3m high

Supplying, fabricating and laying in position MS rounds or RTS rods for RCC works including cost of reinforcement, binding wire, cutting bending, cranking and tying in position with binding wire assembly, etc.

Cement concrete work 1:1/2:3 using 20mm gauge hard broken stone jelly for reinforced concrete works excluding centering, shuttering and cost of steel reinforcement but including laying in position, compacting, curing, finishing, etc., complete

Raising or lowering 45cm (18") or 60 cm (24") dia CI/FRC manhole frame and door using brick work in CM 1:3 grouiting with CC 1:2:4 using 20mm BG jelly rendering the top surface smooth with cement etc. complete

Reconstruction of damaged public fountain including platform and gully connections

CC 1:2:4 with 20mm stone jelly for P.C.C. work

Stock brick work in CM 1:4 for 11.5cm thick

Stock brick work in CM 1:4 for 23cm thick

Plastering with CC 1:3 for 12 mm thick including curing etc. complete

Providing and fixing 15cm and 10cm S.W. Gully trop with CI gratings in B.J. concrete in CM 1:4:10 with silt pit diaphragm arrangements etc. complete

Providing and fixing 20mm PVC Pipe 2m elbow 2 Nos. one side thread adopter 1 No. and 20mm and G.I. Nipple - 1 No. etc. complete.

Supply and fixing 20mm GM check valves

Supplying and laying 20mm dia MDPE pipe and specials including cutting, jointing etc. complete.

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