CNT/SEW/CRRT/094 /2022-23

Amount

BILL NO A : Enlargement of Sewer Mains in Various streets in Depots 133&135, DAE 31 Range, Area-X

Hire charges for Air Compressor including cost of diesel, labour for operator etc for Cutting Bituminous road- Non Bus Route (1m/hr)

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

Supply and Delivery of 250mm dia DWC Structured Wall Polyethylene Piping Systems (Pipe with online/offline coupler and elastomeric sealing ring) with required specials non-smooth external annular corrugated and smooth internal surface (Double wall) (SN 8 Class) for non-pressure underground sewerage, drainage application generally as per IS-16098 (Part-2) type B at 2.0m depth.

250mm dia

Laying of 250mm dia DWC pipes 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 10 m and initial lift of 2m carting the pipes from any of the Board’s Stores to the site of work lowering into the trenches, aligning, watering and ramming to consolidation, etc., complete for the pipes of 250mm diametres. (Timbering included for Depths 2.50m,3.0m)

250mm dia

2.0 m deep to invert

Construction of Machineholes using sulphate resistant cement at various depths to invert including earthwork excavation as per SS 20B, laying cement concrete in C.M. 1:3:6 using Crushed stone sand (M sand) and 40mm B.G.jelly for foundation, sinking well kerb below G.L. for 4.5m depth and above,pumping, timbering charges for 2.5m depth and above, stock brick work in C.M. 1:3, for 23cm thick wall and over 23cm thick wall, plastering interior with C.M. 1:3, 20mm thick and exterior with C.M. 1:3,12mm thick, laying plain cement concrete 1:3:6 using 12.0mm to 20mm B.G.jelly fixing the frame, providing C.I. steps, machinehole cover and frame, benching and channelling including refilling the trench with excavated earth and disposal of surplus earth etc. complete for the sizes for machinehole 1.05m x 0.9m.(As per the type design drawing for machine hole).

at 2.0m deep (Kamakotti Street D-135 -2 Nos Subburayan 6th 1st Cross St 3 Nos Subburayan Nagar Main Rd 2 Nos)

Hire charges for diesel pumpset for 3 HP

Cement concrete 1:3:6 using 20mm gauge hard broken stone jelly for plain cement concrete works including laying in layers of not more than 15cm thick including ramming curing, etc., complete.

Providing and removing dummies with necessary safety gadgets etc complete

Supplying and filling quarry Rubbish

Disposal of surplus earth

BILL NO B : Enlargement of Sewer Mains in Various streets in Depot 134, DAE 31 Range, Area-X

Hire charges for Air Compressor including cost of diesel, labour for operator etc for Cutting Bituminous road- Non Bus Route (1m/hr)

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

Supply and Delivery of 250mm dia DWC Structured Wall Polyethylene Piping Systems (Pipe with online/offline coupler and elastomeric sealing ring) with required specials non-smooth external annular corrugated and smooth internal surface (Double wall) (SN 8 Class) for non-pressure underground sewerage, drainage application generally as per IS-16098 (Part-2) type B.

250 mm dia

2.5m deep to invert

2.0m deep to invert

Laying of 250mm dia DWC pipes 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 10 m and initial lift of 2m carting the pipes from any of the Board’s Stores to the site of work lowering into the trenches, aligning, watering and ramming to consolidation, etc., complete for the pipes of following diametres. (Timbering included for Depths 2.50m,3.0m)

250mm dia

2.5m deep to invert

2.0m deep to invert

Construction of Machineholes using sulphate resistant cement at various depths to invert including earthwork excavation as per SS 20B, laying cement concrete in C.M. 1:3:6 using Crushed stone sand (M sand) and 40mm B.G.jelly for foundation, sinking well kerb below G.L. for 4.5m depth and above,pumping, timbering charges for 2.5m depth and above, stock brick work in C.M. 1:3, for 23cm thick wall and over 23cm thick wall, plastering interior with C.M. 1:3, 20mm thick and exterior with C.M. 1:3,12mm thick, laying plain cement concrete 1:3:6 using 12.0mm to 20mm B.G.jelly fixing the frame, providing C.I. steps, machinehole cover and frame, benching and channelling including refilling the trench with excavated earth and disposal of surplus earth etc. complete for the sizes for each machinehole 1.05m X 0.9m. (As per the type design drawing for machine hole).

2.5m deep to invert

2.0m deep to invert

Hire charges for diesel pumpset 3 HP - For SWD crossing

2.5m deep to invert

2.0m deep to invert

Cement concrete 1:3:6 using 20mm gauge hard broken stone jelly for plain cement concrete works including laying in layers of not more than 15cm thick including ramming curing, etc., complete

Providing and removing dummies with necessary safety gadgets etc complete.

Supply & Filling Quarry Rubbish

Disposal of surplus earth