Providing water supply scheme to the left out streets, Areas and newly formed streets, Part 1 in Area III, XI, XII, XIV and XV

Supply and delivery of DI pipes of the following sizes of socket and spigot end, push - on - joint DI pipes of K7 class conforming to IS: 8329/2000 in standard lengths with cement mortar lining inside and outside zinc coating, including making rubber joints and cost of rubber gasket, labour charges for loading,unloading and stacking at the site etc., as directed by the engineer at site, including earthwork excavation for trenches in hard stiff clay, black cotton, hard red earth, shales, murams, gravel, stoney earth and earth mixed with small size boulders and hard gravel soil, disposal of surplus earth with initial lead of 10m and lift of 2m conveying to the work site, lowering into the trenches, aligning, refilling the trenches with excavated soil, watering and ramming to consolidation, disposal of surplus earth etc., complete for the following pipe diametres and depths.

Laying and jointing of DI pipes of the following sizes of socket and spigot end, push - on - joint DI pipes of K7 class conforming to IS: 8329/2000 in standard lengths with cement mortar lining inside and outside zinc coating, including making rubber joints and cost of rubber gasket, labour charges for loading,unloading and stacking at the site etc., as directed by the engineer at site, including earthwork excavation for trenches in hard stiff clay, black cotton, hard red earth, shales, murams, gravel, stoney earth and earth mixed with small size boulders and hard gravel soil, disposal of surplus earth with initial lead of 10m and lift of 2m conveying to the work site, lowering into the trenches, aligning, refilling the trenches with excavated soil, watering and ramming to consolidation, disposal of surplus earth etc., complete for the following pipe diametres and depths.

Supply, delivery, conveying and fixing following sizes of DI specials with push - on joint 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.

DI A/S Tee:

100x100 mm DI A/S Tee

150x150 mm DI A/S Tee

150x100 mm DI A/S Tee

200x200 mm DI A/S Tee

End Cap:

100 mm DI end cap

150 mm DI end cap

200 mm DI end cap

DI D/S 90 deg Bend:

100 mm DI D/S 90 deg bend

150 mm DI D/S 90 deg bend

200 mm DI D/S 90 deg bend

DI D/S 45 deg Bend:

100 mm DI D/S 45 deg bend

150 mm DI D/S 45 deg bend

200 mm DI D/S 45 deg bend

DI D/S 22.5 deg Bend:

100 mm DI D/S 22.5 deg bend

150 mm DI D/S 22.5 deg bend

200 mm DI D/S 22.5 deg bend

MJ Collar

100mm MJ Collar

150mm MJ Collar

200mm MJ Collar

DI D Soc/Fl Tee:

100x80 mm DI S/S/F tee

DI D/F pipe

100 mm DI D/F pipe - 0.4 m length

100 mm DI D/F pipe - 1 m length

150 mm DI D/F pipe - 0.6 m length

150 mm DI D/F pipe - 1.5 m length

200 mm DI D/F pipe - 0.8 m length

200 mm DI D/F pipe - 2 m length

Supply, delivery, conveying and fixing the CI sluice valves (PN 1.0) of following sizes confirming to IS: 14846/2000 including flange/socket and flange/spigot tail pieces, etc., loading,unloading, transportation charges and stacking etc., complete as per specifications.

100 mm Sluice Valve (with TP)

150 mm Sluice Valve (with TP)

Construction of Sluice Valve Chamber of following sizes in second class brick work in CM 1:4 with 12 mm thick outside plastering and 20 mm thick inside plastering in CM 1:3, RCC cover slab in CC 1:2:4 using 20 mm jelly, chamber foundation and bed block in PCC 1:3:6 using 40 mm jelly including cost of reinforcement and labour charges, CI steps, including providing and fixing MH cover and frame of size 60cmx60cm including necessary masonry work and plastering work etc., complete.

1.35 x 1.20 x 1.55 m (for upto 250 mm dia SV)

Supply, delivery, conveying and fixing of CI double air valves and specials including loading, unloading, transportation charges and stacking at site etc., as directed by the engineer at site etc., complete as per specifications.

Double Air Valve

80 mm Double Air Valve

Sluice Valve for fixing Air Valve

80 mm Sluice Valve (w/o TP)

Construction of Air valve Chamber in second class brick work in CM 1:4 with 12mm thick outside plastering and 20 mm thick inside plastering in CM 1:3, RCC cover slab in CC 1:2:4 using 20 mm jelly, chamber foundation and bed block in PCC 1:3:6 using 40 mm jelly including cost of reinforcement and labour charges,earth work excavation,sand filling,refilling and disposal of surplus earth, fixing CI steps, etc. complete and including providing and fixing MH cover and frame of size 60cmx60cm including necessary masonry work and plastering etc., complete as per specification and as per drawing.

1.2 x 0.9 x 1.80 m (for 80 mm dia AV)

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

Cutting of Road surface

Asphaltic Road

Non-Bus Route

Bus Route - State High ways

Concrete road

Providing and laying cement concrete of M20 grade of 100mm thick after refilling of trenches for temporary restoration of roads in Bus route roads.

Jointing the DI double flanged pipes and specials with rubber insertion to the required specification with M.S bolt and nuts and testing the pipes to the required pressure with water including the cost of jointing materials etc., complete.

Jointing the DI Socket/spigot pipes and specials with rubber gasket (Tyton joint) including cost of jointing materials etc., complete.

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

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.

House service connection

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 degree 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.

15mm dia O.D

20mm dia O.D

25mm dia O.D

32mm dia O.D

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

15mm dia O.D

20mm dia O.D

25mm dia O.D

32mm dia O.D

Supplying, installation, testing, commissioning of AMR water meters with Data capture by wireless system using Long Range Gateways. Transfer Billing System including all hardware & software of following sizes in Chennai City for house service connection

15mm dia

20mm dia

25mm dia

32mm dia

Providing Water Meter protection chamber using Polypropylene cover of base 300mm dia x lid 200mm dia x height 250mm with openable lid and the cover is buried below GL and lid flush with GL including earth work excavation for 600mm x 600mm and base sand filling for 100mm thick over which the cover is placed and enclosed by PCC 1:3:6 using 12-20mm BG jelly for a height of 150mm and refilling with excavated earth for balance 100mm height etc complete as per drawing enclosed

Connection work to existing main including cutting existing pipe, fixing branches,collars, lead jointing and bailing out water etc., excluding excavation

Cutting 150mm to 100mm (6" to 4") DI/CI pipe and fixing 150mm to 50mm (6" to 2") branch

Cutting 250mm to 175mm (6" to 4") DI/CI pipe and fixing 150mm to 50mm (6" to 2") branch

The Contractor must obtain the existing Static GCP points from CMWSSB which should be considered as the control point with known coordinates X, Y and Z. Survey consultant to ensure the closing error is within the permissible limits (SoI Standards) while transferring 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. As built survey for every sewage and water pipeline and other assets must be done using DGPS based RTK method by transferring the coordinates from the nearest Static GCP of CMWSSB. Where there are signal interruptions for the RTK method, Total Station can be used. The coordinates from the static GCP shall be transferred to the Total Station by RTK method and the co- ordinates of the assets can then be captured by Total Station. All the features, attributes of all the assets, utilities captured shall be Geo referenced as per standard Coordinate reference system (WGS 84 UTM Zone 44N). The final base map with assets and utilities shall be furnished in (.shp) format. The geo referenced assets and utilities along with the attributes (as specified by the GIS Wing, CMWSSB) shall be converted into proper geo database (FGDB / PGDB) with the attributes. One set Hard and Soft Copy of all the CMWSSB assets and utility has to be prepared category wise network wise in A0 Print for verification in a print scale of 1:1000 in A0 plot, with standard legends in international and NUIS standards and should be legible and three sets of final Hard Copy in A0 print.

Sub Total (excluding GST)

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