CONSTRUCTION OF WATER HARVESTING STRUCTURE AT KOTHI UNA DISTRICT

Amount

Water Harvesting Structure

Earth work in excavation by mechanical means (Hydraulic excavator)/manual means over areas (exceeding 30 cm in depth, 1.5 m in width as well as 10 sqm on plan) including getting out and disposal of excavated earth lead upto 50 m and lift upto 1.5 m, as directed by Engineer-in-charge. Hard rock (requiring blasting) item No. 2.7.2 of HPSSR - 2020

1:1½:3 (1 Cement: 1½ coarse sand) : 3 graded stone aggregate 20 mm nominal size) Item No. 4.1.2 of HPSSR - 2020

1:3:6 (1 Cement : 3 coarse sand) : 6 graded stone aggregate 20 mm nominal size) Item No. 4.1.5 of HPSSR - 2020

1:3:6 (1 Cement : 3 coarse sand) : 6 graded stone aggregate 40 mm nominal size) Shear Key Item No. 4.1.6 of HPSSR - 2020

Providing and laying cement concrete in retaining walls, return walls, walls (any thickness) including attached pilasters, columns, piers, abutments, pillars, posts, struts, buttresses, string or lacing courses, parapets, coping, bed blocks, anchor blocks, plain window sills, fillets, sunken floor etc., up to floor five level, excluding the cost of centering, shuttering and finishing: 1:3:6 (1 cement : 3 coarse sand) : 6 graded stone aggregate 20 mm nominal size) Item No. 4.2.5 of HPSSR - 2020

Reinforced cement concrete work in walls (any thickness), including attached pilasters, buttresses, plinth and string courses, fillets, columns, pillars, piers, abutments, posts and struts etc. above plinth level up to floor five level, excluding cost of centering, shuttering, finishing and reinforcement : 1:1.5:3 (1 cement : 1.5 coarse sand) : 3 graded stone aggregate 20 mm nominal size) Item No. 5.2.2 of HPSSR - 2020

Centering and shuttering including strutting, propping etc. and removal of form work for :Retaining walls, return walls, walls (any thickness) including attached pilasters, buttresses, plinth and string courses fillets, kerbs and steps etc. Item No 4.3.2 of HPSSR - 2020

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete above plinth level Mild steel and Medium Tensile steel bars Item No. 5.22 A.1

Boulder filling dry hand packed tightly as in wire crate apron bund (wire crates to be measured separately) As per Item No. 16.94 of HPSSR - 2020

Providing, laying, jointing and fixing GI Flanged Pipes ( IS : 1161-1998) of 250 mm dia, & heavy Class conforming to IS specification capable to withstand the required hydraulic test pressure as per IS code in random length of 6.00 mtrs. with Plain ends and jointed with flange table 5 conforming to IS-6392-1971 (latest with up to date amendments) i/c all fittings such as bends, tees & tail pieces etc. the welding of flanges to be done on both faces in double layer to make the joint leak proof according to relevant BIS standard and specification in all respect and to the entire satisfaction of the engineer-in-charge. Market Rates.

P/L Hot rolled steel flats for sluce valve including all necessary fittings, fish plate 400 x 400 mm size (15mm thick) as per IS 1730 : 1989

80 Days dewatering / pumping out @ 3.44 hours per day

Sump Well

Earth work in excavation by mechanical means (Hydraulic excavator) / manual means over areas (exceeding 30 cm in depth, 1.5 m in width as well as 10 sqm on plan) including disposal of excavated earth, lead up to 50 m and lift up to 1.5 m, disposed earth to be levelled and neatly dressed.

2nd class Brick mesonry in 1:4 mortar (item no. 6.4.1)

Coarse Sand with 40 mm Stone Aggregate (item no. 293)

Half Brick mesonry in 1:3 mortar (item no. 6.12)

Pumping out / Dewatering

Providing weep hole with dry graded stone filter of 20mm to 40mm size (item no 6.7.6 of Jharkhand SOR Page no. 82)

RCC 1:2:4 for well curb and RCC Slab (item no. 4.1.4)

Supplying, fitting and placing HYSD bar reinforcement complete as per drawing and technical specifications

Providing and fixing steel ring under curb

Rigid and smooth centering and shuttering for R.C.C. works including false works and dismantling them after casting including cost of materials complete for RCC walls & fins.

80mm Dia GI Pipe medium capacity from Sump well to Apron for flushing i/c fish plate, flanges, bends jointing in all respect

Wire Crate Works

Earth work in excavation by mechanical means (Hydraulic excavator) / manual means over areas (exceeding 30 cm in depth, 1.5 m in width as well as 10 sqm on plan) including disposal of excavated earth, lead up to 50 m and lift up to 1.5 m, disposed earth to be levelled and neatly dressed.

Providing & making Gabion structure with Mechanically Woven Double Twisted Hexagonal Shaped Wire mesh Gabion Boxes as per IS 16014:2012,MORTH Clause 2500, of required size, Mesh Type 10x12 (D=100 mm with tolerance of ± 2%) Zinc coated, Mesh wire diameter 3.0 mm, mechanically edged/selvedged with partitions at every 1m interval and shall have minimum 10 numbers of openings per meter of mesh perpendicular to twist, tying with lacing wire of diameter 2.2mm, supplied @ 3% by weight of Gabion boxes, filled with boulders with least dimension of 200 mm, as per drawing, all complete as per direction of Engineer-in-charge.

DEEPAK KUMAR BEETAN