Construction of Cement Concrete Check Dam in Bout Nallah (Patta) at Village- Bout , Ward.No.3 , G.P- Muchhali under APO Thanakalan during 2021-22

Amount

Earthwork in excavation by mechanical means (hydraulic exacavation)/manual means in foundation trench not exceeding 1.5 mtr in width or 10 Sqmtr on plan I/c dressing of sites & ramming of bottom lift upto 1.5 mtr I/c getting out the excavated soil & disposal of surplus excavated soil as directed with in lead of 50 mtr in ordinary rock in foundation of tank.

Supplying & stacking of hardstone (For stonepitching ) 22.50 cm thick at site stone soiling under Tank base.

Providing & laying in position cement concrete specified grade excluding cost of centering & shuttering in all work upto plenth level CC 1:4:8 in base of tank ( 1Cement : 4 Sand : 8 stone Aggregate 40 mm nonimal size)

Providing & laying in position cement concrete specified grade excluding cost of centering & shuttering in all work upto plenth level CC 1:3:6 in base of tank ( 1 Cement : 3 Sand : 6 stone Aggregate 40 mm nonimal size)

Providing form work of steel plates centering & strutting I/c shuttering propping etc. and removal of Formwork for walls etc vertical .

Providing & laying of RCC work in position specified grade in RCC excluding the cost of centering shuttering finishing & reinforcement 1:2:4 in walls in tank & in base of tank.

Providing Tor steel reinforcment for RCC work I/c straightening, cutting, bending, placing in position & binding all complete (Tor steel)

Providing & laying GI pipe 150 mm dia (medium class I/c fixing with flanges & nutbolt complete with all accessories for drainage out

Providing & fixing of C.I. sluice valve 150 mm dia with all accessories i9.e flanges & nutbolts, gasket sheet ISI mark with brass spindles PH 1.6 etc.

Fencing with angle iron post placed at required distance embeded in cement concrete blocks every 15th post, last but one end post and corner post shall be strutted on both sides and end post on one side only and provided with horizantal lines and two diagonals interwoven with horizontal wires of barbed wire weighing 9.38 kg/100 mtr (minimum) between the post fitted and fixed with GI stapples,turn buckles etd. complete (cost of post,struts,earthwork and concrete work to be paid for separately (six line fencing)

Suppllying at site angle iron post & strut of required size I/c bottom to be split and bent at right angle in opposite direction for 10 cm length & drilling holes upto 10 mm dia etc. complete I/c priming coat & painting.

Anita Devi