CGF 2023-2024 WS

Amount

Earth work excavation above water level in light or sandy of clay soil for Infiltration well of 4.50 m dia (Internal) including leveling the site and as directed by the departmental officers open well excavation for infiltration well for first depth of 1.00 m

Sinking of infiltration well of 6.00 m internal dia and 5.50 m external dia below pilasters level including all incidental charges in light (or) sandy soil. First depth of 2.0 m

Second depth of 2.0 m

Third depth of 2.0 m

Fourth depth of 2.0 m

Fifth depth of 2.0 m

Porous Concrete in CC 1:4 (One cement and Four hard broken granite jelly pf size 20mm) for steining of infiltration well excluding cost of centering but including curing etc., complete and as directed by the Departmental Officers.

Brick work in cm 1:5 (One Cement and Five Sand) using country bricks os size 22 x 11 x 5 cm for steining of 55 cm thick for infiltration well including curing etc., complete and as directed by the Departmental Officers.

Supplying and erecting centering for sides and soffits including supports and strutting uptp 3.29m height for plane surfaces in all floors with all cross bracings using mild steel sheets of size 90cmx60cm and 10 gauge stiffened, welded with mild steel angles of size 25mmx25x3mm for boarding laid over silver oak (country wood) joist of size 10cmx6.5cm dia spaced about 90cm centre to centre and supported by casuarina props of 10cm to 13cm dia spaced at 75cm centre tocentre etc.complete complying with standard specification and as directed by the departmental engineers. TNBP No.30 For Plane Surface

For Curved Surface

Reinforced cement concrete 1:1.5:3 (One cement, one and half sand and three hard broken granite metal) using 20 mm machine crushed HBG stone jelly excluding cost of centering, strutting, supply and fabrication of steel reinforcement but including cost of curing etc., complete and as directed by the Departmental Officers.

Supplying and fabrication of steel and placing in position of TMT steel rods for RCC works as per design given including cost of steel and GI binding wire in all floors etc., complete complying with standard specification in TNDSS NO:97 V,VI (S6) VII (S6), VII-3.

Plastering in CM 1:4 (One Cement and Four Sand) 12 mm thick including Curing etc., complete and as directed by the Departmental Officers

Plastering in CM 1:4 (One Cement and Four Sand) 20 mm thick including Curing etc., complete and as directed by the Departmental Officers

Supply, delivery and fixing in position 50 mm thick RCC manhole cover slab of size 0.60 x 0.60 m with necessary and MS angle of size 50 mm x 50 mm x 6 mm thick fixed alround the edges of the slab complete and as directed by the Departmental Officers.

Supply, delivery and fixing of CI steps in position at 30 cm center to center in zig zag manner and as directed by the Departmental Officers.

Providing ventilating arrangement by fixing in position 160 mm OD PVC 6 Ksc pipe with PVC cowl and as directed by the Departmental Officers.

Providing for cutting edge using 10G MS sheets including the cos of fabrication welding and placing in position in the curb including supply of the MS sheet

Plugging the Bottom of the well with coarse sand of approved sizes and grade as directed by the Departmental Officers

Supply and delivery of HDPE PN 8 180mm pipes including all cost and conveyance and other charges.. Etc 180mm dia HDPE PN8

80mm dia GI pipe

MS Clamp set

Lowering of HDPE PN 8 and specials in the trench and laying to proper grade and alignment and as directed by the TWAD officers

Labour charges for Putting bore holes of size of 3" to 4" in river bed in sandy and other loose soil using hand boring sets including the cost of hire charges , conveyance charges of hand boring sets including all labour charges.. Etc

Lowering of GI Pipes and specials in the trench and laying to proper grade and alignment and as directed by the TWAD officers

Plain Cement Concrete 1:2:4 Mix (one part cement, two part sand and four part of aggrigate) using 20mm size ISS HBG metal machine crushed from approved quarry including cost and conveyance of all materials to site, loading and unloading charges and labour charges for mixing, laying and curing etc., complete as per TNDSS NO: 28 & VI (S2) VI (S5A) VII standard specifications as directed by Engineer incharge.

Supply and Delivery 2000 lpm x 40m head ( 30 HP) Submersible Motor including all cost and conveyance charges.. Etc

Supply and Delivery of PVC insulated and sheated 16sqmm 3 core flat type copper cable confirming to IS 694 /1990 and as amended therefter including all charges.. Etc