Chennai Metropolitan Water Supply And Sewerage Board Tender

at 1.0m deep

at 1.5m deep

at 2.0m deep

Supply, delivery, laying and jointing of Double wall corrugated /structured wall plastic polyethylene/polypropylene pipes DWC PE or PP of class SN-8 with non-smooth external Annular Corrugated and Smooth Internal Surfaces in Standard lengths with online coupler and spigot type confirming to IS 16098 (Part-2) 2013 / EN: 13476-3 (latest revision) including elastomeric sealing ring gasket suitable for DWC PE or PP pipes conforming to IS: 5382 (latest revision), freight,insurance, loading into the truck and transporting to the stores / site.. etc including earth work excavation in hard stiff clay,stiff black cotton,hard red earth, shales, muram, 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 lowering into trenches, aligning and testing of DWC PE or PP pipes, watering and ramming to consolidation including timbering the trenches for depths 2.5m and above, pumping out subsoil water etc., complete.

295/250mm OD/ID DWC PE or PP Pipe

at 2.5m deep

358/300mm OD/ID DWC PE or PP pipe

at 3.0m deep

597/500mm ID DWC PE or PP pipe

at 3.0m deep

at 3.5m deep

at 4.0m deep

Cement concrete 1:3:6 using Crushed stone sand (M-sand) and 40mm gauge hard broken stone jelly & SRC for Plain cement concrete works including laying in layers of not more than 15cm thick,compacting, curing etc complete for encasing and end concrete.

Construction of Precast circular RCC machinehole using sulphate resistant cement with M30 design mix concrete using Crushed stone sand (M sand) including earthwork excavation as per SS20B including timbering and pumping charges(for 2.5m depth and above), supplying & filling sand for bedding, providing plain cement concrete 1:1.5:3 using 20mm B.G. jelly jelly for foundation, providing base units of 1m height (base slab and sidewall),riser unit (without corbel) of varying heights to suit the various depth requirements and roof slab including cost of steel reinforcement, cost of fabricating the steel mould using MS sheet and ISA angles including material and labour cost, providing CI steps, fixing FRC manhole frame and door, benching and channelling, refilling with excavated earth and disposal of surplus earth, joining of precast units by grouting with CM1:1 and polyurethane based water proofing compound 1% (by weight of cement ) at shear key and protruded bars- grout holes locations, cost of conveyance and erection charges of precast machinehole at the required position as directed by the engineer at site including testing the machinehole with water for 48 hours to check water tightness and rectifying the defects if any for the following size and depths:

1200mm dia Circular Machine Hole for Sewers (upto 450mm dia)

at 1.0m deep

at 1.5m deep

at 2.0m deep

at 2.5m deep

Construction of RCC machinehole using sulphate resistant cement with M30 design mix concrete using Crushed stone sand (M sand) including earthwork excavation as per SS20B , providing point edge to well kerb for sinking using ISA 150x75x10mm weighing at 16.9kg/m, sinking well kerb below 2.0m from G.L. or by open excavation for various depth as per site conditions with M30 mix for side wall, raft and roof slab, including cost of steel reinforcement , including bailing and pumping out water, formwork, plugging the bottom with PCC 1:3:6 using 40mm hard broken granite jelly, laying plain cement concrete 1:3:6 using 12mm to 20mm hard broken granite jelly for fixing the frame, fixing FRC machinehole cover and frame, providing CI steps, ,benching and channelling including refilling the trenches with excavated earth and disposal of earth etc., including testing the machinehole with water for 48 hours to check water tightness and rectifying the defects if any complete for the following size of machine holes.

1200mm dia Circular Machine Hole for Sewers (upto 450mm dia)

at 3.0m deep

at 3.5m deep

at 4.0m deep

Supplying and fixing 150mm dia MS Ventilating columns 6.0m length with CI Base for Ventilating column, Wire Cowl, Supplying, Laying, Jointing and Testing of 160mm dia UPVC pipe to a length of 6m for each column including cost of joining materials such as cement, sand and spun yarn with necessary civil works for construction of Masonry Pillars, earthwork excavation, refilling etc., complete.

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

Road Cutting - Cutting Asphaltic Road

Non Bus Route -Total

Cutting Cement Concrete Road

Cutting DWC PE Pipes

250mm Dia

300mm Dia

500mm Dia

Providing House service connection: Supplying, laying jointing and testing UPVC pipe including earthwork excavation for trenches in hard stiff clay, stiff black cotton, 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. lowering the pipes into the trenches, aligning, refilling the trenches with excavated earth in layers of not more than 23cm thick watering, ramming to consolidation and disposal of surplus earth etc., complete

110mm dia upto a depth of 1.0m

160mm dia upto a depth of 1.5m

Supplying and filling with stone dust for bedding for a thickness of 10cm and back fill envelope for a thickness of 150mm above the crown of the pipe for DWC PE pipes including ramming, consolidation etc., complete

Refilling with excavated soils (other than sand) complying with standard specifications for filling in foundations and basement.(for DWC PE or PP pipe length)

Disposal of surplus earth (for DWC PE or PP pipe length)

Making through holes in plain or reinforced cement concrete with diamond core drilling system by using BOSCH power tools of following diameters - depth per cm

110mm

160mm

Providing form work with centering for soffits of reinforced cement concrete slabs or plain surfaces including shuttering for

For end concrete

RTK Survey