Confirmatory Survey Design Construction and laying of sewer line connection to existing sewerage and commissioning with all appurtenant works on item rate contract basis including supply of all material labour T P etc for Leftover area of Mussoorie

Amount

Demolishing of road for sewers, manholes, sewer connecting chambers etc. including sorting out and stacking of materials (serviceable materials) and disposal of unserviceable materials up to a distance of 50 m. lead as per direction of Engineer - in -charge.

Bituminous Road

Cement concrete Roads

Excavation of earth in trenches for the following depth below G.L. for laying and jointing of sewers in soil mixed with Shingle, bajari etc. including excavation of joints pits, trimming, dressing, leveling, refilling of trenches in 15 cms layers, watering and ramming the same and disposal of surplus earth and other dismantled materials up to a distance of 50 m. from the centre of the trenches and cleaning of site properly after completion of the work.

0.00 - 1.50 m depth B.G.L.

1.50 - 3.00 m depth B.G.L

Same as above but in medium rocks.

0.00 - 1.50 m depth B.G.L.

1.50 - 3.00 m depth B.G.L

Provide and fix open timbering ,covering 1/3 of surface area by planks, in trenches for the depth upto 3 m B.G.L Consisting of 40 mm thick approved country wood planks for poling board 125mmx75mm indian sal wood wallers and 100mm dia sal ballies for strut fixed at 1.50m c/c including its removal after laying of sewer ,both sides of timbering shall be taken as one side for the purpose of payment and measurement i.e ,area = length x depth of trench. Dismentaled timbering material will be the property of contractor.

depth 0.0 - 3.0m B.G.L.

Supply, Carting and laying jointing of the following size D.I. pipe class K-7 S&S pipe with approved EPDM qualtity of rubber gaskets and specials at site of works, lowering the same into trenches in different depths below GL, laying of pipes true to the alignment and gradient, including excavation of earth at joints below invert level of pipes, cost of all jointing materials, testing etc. complete but excluding excavation and refilling of trenches.

150 mm dia 0.00 - 1.50 m depth B.G.L.

1.50 - 3.00 m depth B.G.L

200 mm dia 0.00 - 1.50 m depth B.G.L.

1.50 - 3.00 m depth B.G.L

250mm dia 0.00 - 1.50 m depth B.G.L.

1.50 - 3.00 m depth B.G.L

Constructing Brick Masonry Manhole of various dia and depth as per IS :4111 par1( latest ammendment) in FPS brick class designation M-100 in Cement Mortar 1:5 (1 cement : 5 coarse sand) including nside and outside 15mm thick plastering in cement mortar 1:3(1 cement : 3 coarse sand) finished with a floating coat of neat cement inside only. The work includes excavation, dewatering, planking, strutting etc. refilling, disposal of surplus earth with all lift and lead of 50m, Including construction of concrete base with PCC 1:4:8 (1 cement : 1 coarse sand : 4 stone aggregate 40mm nominal size), preparation of channal up to the height of'the'pipe and benching in PCC 1:2:4 (1 cement : 2 coarse sand : 4 stone aggregate 20mm nominal size) including neat cement finished, suitable connection of inlet & outlet pipes, testing (watertightness} of manhole, curing etc. complete as per specification and drawing and as per entire satisfaction of Engineer-in-Charge (the depth of manhole will be measured from the invert of the pipe to top of the manhole cover).

900mm internal diameter at bottom,0.90-1.65m depths

1200 mm internal dia,at bottom,1.65-2.3m depths

Provide all materials, labour T&P etc. and construct sewer connecting chamber for the following sizes.

0.60 x 0.60 x 1.50 m depth

0.60 x 0.60 x 3.00 m depth

supply all material T&P and construction of P.C.C work in 1:2:4 (1 Cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size) for road reinstatement work

supply all material T&P and construction of P.C.C work in 1:3:6 (1 Cement : 3 coarse sand : 6 graded stone aggregate 40 mm nominal size) for road reinstatement work

Supply and Filling granular material (well graded crushed rock or gravel maximum size 25mm) into the trenches for class B bedding (granular bedding) including supply of all materials, labour, T&P etc. required for proper completion of the work.

0.00 - 3.00 m deep

Shifting of domestic water supply house connection coming in the alignment of sewer line/mahnole chamber including excavation, refilling, supply of all material, pipes, specials etc., labour, T&P and making good complete as per entire satisfaction of engineer in charge.

15mm dia to 20 mm dia G.I. (M)

25mm dia to 32 mm dia G.I. (M)

Repair of water supply mains and house water connections including bailing out of water and supply of all materials, labour, T&P etc. complete. 15-20 mm dia

15mm dia to 20 mm dia G.I. (M)

25mm dia to 32 mm dia G.I. (M)

Crossing of nala, drain and culverts during execution of work including re-instatement of the same with all materials, labour. T&P etc. complete.

Barricading and necessary diversion of road/lanes with the help of ballies, ropes, flags, signals and light signals etc. during construction at site for day and night.

Cartage of excavated earth from site to suitable place as direction of Engineer-in-charge by head load (the work being in narrow lanes) and carrying back for filling of trenches after laying and jointing the pipes on an average distance of 45 mtr (one side).

Recartage of excavated earth by head load for filling of trenches after laying and jointing the pipes on an average distance of 45 m.

Disposal of surplus earth from the site of work upto a distance of 8.0 km. As directed by Engineer incharge including loading unloading and carting etc. all complete.

Diversion of Sewers by laying temporary sewers and removing them upon completion of permament connection.

R.R.1:6 stone masonry in protection of manhole and sewer line on steeper slopes including supply of all materials labour, T&P required for proper completion of work.

Preparation of bridle path from main road to site of work including supply of all material labour T&P etc. all complete,.

Deduction in the depth of the manhole to regulate payments for variation of actual depth of manholes in following sizes.

900mm internal diameter at bottom,0.90-1.65m depths

1200 mm internal dia,at bottom,1.65-2.3m depths

Provide all materials, labour T&P etc. and construct shaft to regulate excess or less height of sewer connecting chamber for the following size.

0.60 x 0.60 x 1.50 m depth

0.60 x 0.60 x 3.00 m depth