Construction of check weir of 10.00 Mtr length 1.70 Mtr height and Nallah both side protection wall of 2.50 Mtr length at Katai Basti Perennial Source at Swaraj Dweep under CD-I, A.P.W.D., Sri Vijaya Puram

Amount

Earth work in excavation by mechanical means (Hydraulic excavator) / manual means in foundation trenches or drains (not exceeding 1.5 m in width or 10 sqm on plan), including dressing of sides and ramming of bottoms, for all lift, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m.

All kinds of soil.

Filling available excavated earth (excluding rock) in trenches, plinth. sides of foundations etc. in layers not exceeding 20cm in depth, consolidating each deposited layer by ramming and watering, lead up to 50 m and for all lift

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level :

1:2:4 (1 cement : 2 coarse sand (zone-III) derived from natural sources : 4 graded stone aggregate 20 mm nominal size derived from natural sources)

1:3:6 (1 Cement : 3 coarse sand (zone-III) derived from natural sources : 6 graded stone aggregate 20 mm nominal size derived from natural sources)

1:4:8 (1 Cement : 4 coarse sand (zone-III) derived from natural sources : 8 graded stone aggregate 40 mm nominal size derived from natural sources)

1:15:3 (1 Cement: 1:5 coarse sand (zone-Ili) derived from natural sources . 3 graded stone aggregate 20 mm nominal size derived from natural sources)

Centering and shuttering including strutting, propping etc. and removal of form work for:

Foundations, footings, bases for columns

Retaining walls, return walls, walls (any thickness) including attached pilasters, buttresses, plinth and string courses fillets, kerbs and steps etc.

Extra for laying concrete in or under water and/or liquid mud including cost of pumping or bailing out water and removing slush etc. complete. Note for item No. 4.15 :- The quantity will be calculated by multiplying the depth measured from the sub-soil water level up to centre of gravity of concrete under sub-soil water level with quantity of concrete in cum executed under sub-soil water. The depth of centre of gravity shall be reckoned correct to 0.1m. 0.05m or more shall be taken as 0.1m and less than 0.05m ignored.

12 mm cement plaster of mix :

1:4 (1 cement: 4 fine sand)

Finishing walls with textured exterior paint of required shade :

New work (Two or more coats applied @ 3.28 ltr/10 sqm) over and including priming coat of exterior primer applied @ 2.20kg/10 sqm

Providing and fixing G.I. pipes complete with G.I. fittings including trenching and refilling etc. External work

80 mm dia nominal bore

Providing and fixing gun metal gate valve with C.I. wheel of approved quality (screwed end) :

80 mm nominal bore

Providing and fixing G.I. Union in G.I. pipe including cutting and threading the pipe and making long screws etc. complete (New work) :

80 mm nominal bore

Construction of Temporary coffer dam of length 0.800 Mtr and 2.00 Mtr Height at upstream side by bamboo in two line layer vertically, breacing in 10 line, two layer horizontally, and filling earth / stone aggregate 20mm nominal size filled gunny bag for discontinued the water flow towards down stream side through nallah for diversion of water flow through sdies of the nallah

Providing and laying stone aggregate of 40mm nominal size and pulverised sand [20%] mixed with powder dry shell line @ 20% by volume of P/sand inclduing watering and compacting etc all complete as directed by Engineer-in-charge

Providing and fixing PVC Pipe 75mm dia in weep holes as per direction of Engineer-in-charge

Providing and fixing brass foot valve of approved quality

80mm dia

C.M.ROY CONSTRUCTION (BID ID -47625)

O P KANDOI AND COMPANY PVT LTD (BID ID -47600)

Shri Pankaj Roy (BID ID -47480)