Construction of Infilteration well at Olapalayam Cauvery River HO Olapalayam in Mohanur at Namakkal

Amount

Construction of Infilteration well at Olapalayam Cauvery River HO Olapalayam AT MOHANUR BLOCK IN NAMAKKAL DISTRICT UNDER MPLAD'S - 2025 - 2026

Earthwork excavation above water level in light or sandy or clay soils for infiltration well of 4.50m Dia (Internal) including levelling the site and as directed by the departmental officers open well excavation for infiltration well for first depth of 1.00m

Reinforced cement concrete 1:1.5:3 mix using 20mm ISS metal including cost and conveyance of all materials to site and all labour charges for mixing, laying, finishing and curing etc complete.

up to 1.50m Below GL

0 to 4.5m above GL

Sinking well of 4.50m internal dia below water level including all incidental charges in loose / sandy soil using special tools and plants such as air compressor helmet etc. including bailing out water completeas per standard specifications and as directed by TWAD Board Officers.

First depth of 2.0m

second depth of 2.0m

Third depth of 2.0m

Fourth depth of 2.0m

Fifth depth of 2.0m

Porous cement concrete 1:4 (One cement, four aggregate) by using 20mm machine crushed HBG (no sand to be used) for the steining wall of infiltration well/Mat portion etc. excluding cost of reinforcement and fabricating centering, shuttering and strutting but including cost of all materials,mixing placing in position lifting finishing and curing etc complete and as directed by Board Officers.( 0 to 4.5m above GL)

Centering for soffits of RCC members or plane surface including shuttering, strutting to the centering and providing supports etc. complete for the following members using MS sheets of size 90x60cm and 'BG' 10 gauge stiffened with welded M.S. angles of size 25x25x3mm laid over silver oak (country wood) joists of size 10 x 6.5 cm spaced at about 90cm C/C and casurina props of 10 to 13 cm dia (spaced at 75cm C/C) for various heights and as directed by the departmental Officers. The centering should be removed after the specified striping time of the concrete as per IS-456/1978. Upto 3.30 m height.

For Plane Surface

For Curved Surface

Supplying, cutting, bending, tying, fabricating and placing in position of steel rods for all RCC works including cost of steel and binding wire etc. The steel should conform to the relevant IS specification and supplied with test certificate (Fe.415 grade as per IS specification No.1786/1985 and as amended from time to time) for delivery at site of work including loading, freight, unloading, stacking, transit insurance charges, taxes etc. complete and as directed by TWAD Board Officers.

Supply, delivery and fixing in position 50mm thick RCC (1:1.5:3) manhole cover slab of size 0.60 x 0.60 with necessary reinforcement and MS angle of size 50mm x 50mm x 6mm thick fixed alround the edges of the slab complete and as directed by the TWAD Board Officers

Supply, delivery and fixing of CI steps in position at 30 cm center to center in staggered manner and as directed by the TWAD Board Officers.as per IS 5455-1969 of Pattern II

Providing Ventilating arrangement by fixing in position 110mm OD pipe 6KSC with PVC cowl and as directed by the TWAD Board Officers.1.0m length (262+77.80)

Cement painting two coats including coat and other labour

Providing dewatering diesel pump set 7.50HP-2nos. for yield test

Supply and Delivery of 80mm GI Pipe including all charges etc

laying and joining of 80mm GI Pipe including all charges etc

Supply and Delivery of 20 HP Motor (1500 LPM x 40m) including all charges etc

Supply and Delivery of 20 HP Panel Board including all charges etc

Provission for Erection charges for Open well Motor

GST Amount for providing Service to Government Contract Works for the above RENEWAL Works. { GST Amount is the Total GST Amount for overall quoted amount above this row in column "BB" for all works in this package} (Refer Clause 13.2 & 13.3 of Section 2 of Instruction to Bidders (ITB) of SBD)

Chinnusamy P (BID ID -1361858)