Construction of Check dam at Nad Nalla in Tehsil Dalhousie Distt. Chamba HP Sub Head Construction of low gravity dam at RD 0

Amount

Excavation in foundations trenches etc. in earth work within all leads and lifts in all kinds of soil such as pick work, jumper work, blasting work in hard/ soft rocks, chiseling / wedging out of hard /soft rock including dewatering in saturated soil up to all leads and lifts stacking the excavated soil / materials not more than 3 meters clear from the edge of excavation and then returning the stacked soil in 15 centimeter layers when required into plinths side of foundations etc., consolidating each deposited layer by ramming and watering and then disposing of all surplus excavated earth within all leads and lifts as per the direction of Engineer-in -Charge.

Providing and laying cement concrete 1:5:10 (1 cement : 5 sand : 10 graded stone aggregate 40mm nominal size) with 15 % plums and curing complete excluding cost of form work in Retaining wall/ Breast walls. The size of plum shall usually be 150 mm to 300 mm as per PWD specification within all leads and lifts as per the direction and to the entire satisfaction of Engineer-in-Charge.

Providing and laying cement concrete 1:2:4(1 cement : 2 sand: 4 graded stone aggregate 20mm nominal size) and curing complete excluding cost of form work in foundation and plinth within all leads and lifts as per the direction of Engineer-in-Charge.

Providing form work with steel plates 3.15 milimetre thick welding with angle iron in frame 30x30x5 milimetre, so as to give fair finish including centering, shuttering strutting and propping etc. with wooden battens and ballies for all height of propping and centring below supporting floor to ceiling and removal of the same for in-situ-reinforced concrete and plain concrete work in:-

Vertical surfaces such as walls of kuhl /chnnels (any thickness) partitions and the like including attached pillasters, buttresses, plinth and string courses and the like within all leads and lifts as per the direction of Engineer-in Charge.

Providing in R.C.C. work smooth finishing of the exposed surface with cement mortar 1:3 (One Cement:Three Sand) in bottom dome within all leads and lifts as per the direction of Engineer-in Charge.

Providing tor steel reinforcement for reinforced concrete work including bending, binding and placing in position complete up to floor two level within all leads and lifts as per the direction of Engineer-in-Charge.

Providing,Laying, jointing & testing of MSERW pipe having wall Thick. Of 4.80 mm conforming to IS/ISO:3183-2007 i/c the cost of bend 250mm dia in a randam length of 5-7 metre including with Galvanised as per IS:4736 with MS joints at suitable point & remaining other Circumferencial Butt welded joints by minimum effective thorat thickness of weld conforming to IS:816-1969 sepecification, by using welding electrodes of 2.50 mm to 6.30 mm of Advani oerlikon (Adore)-electrical arc welding to required dia MSERW pipe welded in requisite numberof weld runs so as to to achieve the CITOJET/ ESAB make, conforming to IS:814:1991, at site of work complete in all respect, includign manual/machanical handling of pipes complete in all respect excluding the cost of earth work in trenches within all leads and lifts ( Earth work in trenches, M.S Flanges and Butt welded Joints to be measured and paid seperately.)as per direction of Engineer -in- Charge of the following nominal bores.

250 mm dia nominal bore (4.80 mm thick )

Providing and fixing of CI Sluice Valve (with hand wheel) as per IS : 780-1984 class-1 upto 300 mm dia (including brass spindle and as per IS : 2906-1984 class-II for dia >300 mm) complete with nuts, bolts, rubber insertion etc. (the tail piece if required shall be measured and paid for separately.) 250 mm dia within all leads and lifts as per the direction of Engineer-in- Charge.

Wire crate made of G.I. wire filled with boulders with square cut faces aginst the wire (wire crate to be measured and paid for separetaly) the weight of boulder should not be less than 18 kg.each within all leads and lifts as per the direction of Engineer-in -Charge.

Wire crate made of G.I. wire filled with boulders with square cut faces against the wire (boulder filling to be measured and paid for separetaly) G.I. wire 5mm thick corresponding to SWG-6. 15 cm x 15 cm mesh. The size of crate 1.25x1.25x1.25 metre within all leads and lifts as per the direction of Engineer-in -Charge.