Replacement of damaged sewerline at Bakralwala near Mahaveer Rawat House under Upper zone South Division Dehradun

Dismantling of cement concrete pavements and disposal of dismantled materials including supply of all materials labour T&P etc required for the proper completion of the work.

Dismantling of flexible pavements and disposal of dismantled materials including supply of all materials labour T&P etc required for the proper completion of the work. Bituminous courses

Granular courses

Providing of all materials, labour, T&P etc required for diverting and blocking of existing sewer line for execution of work and removing after completion of work.including supply of all materials labour T&P etc required for the proper completion of the work.

Excavation of earth below G.L. by manually or by mechanical means for laying of Sewers, Man-Holes, Gully Pits, Chambers etc. in soil including extra excavation below inverts, trimming & dressing of sides, levelling and back filling of trenches by excavated earth in 20 cm layers,watering and ramming the same including removal of surplus earth or other dismantled material up to a distance of 50 meters from the center of trenches and cleaning of site properly after completion of the work. Excavation by mechanical means shall be restricted upto 90 cm above invert levels at every point of excavation. Excavation from invert levels to 90 cm above shall be done by manually only.excavation in Soil mixed with morum,shingle & kankar etc. using of any specials T&P, if required. 0m to 1.5m BGL

1.5m to 3.0m BGL

3.0m to 4.50m BGL

4.50m to 6.0m BGL

Provide & fixing of Open Timbering (covering1/3rd of surface area by planks), in trenches for the following depths below ground level consisting of 40mm thick approved country wood planks for poling board, 125mm × 75mm Indian Salwood walers and 100 mm dia Sal wood ballies for struts at 1.50m interval including removal after laying of sewer(both sides of trenches will be taken as one side for the purpose of payments & measurements i.e. area equals to length x depth of trenches. Dismantled timbering materials will be the property of the contractor. Depth upto 3 m below G.L

3m to 6m BGL

Supply & Laying - Jointing of following dia. R.C.C. S&S pipes with rubber gaskets to the site of work, lowering the same into trenches below ground level true to alignment, making the joints with rubber gaskets and with necessary spun yarn soaked in bitumen jointing with 1:2 cement mortar in coarse sand including cost of all jointing materials and testing etc. complete but excluding excavation and backfilling of trenches upto ground level. 200mm dia NP-3 Class Pipe, 1.50 to 3.0m BGL

200mm dia NP-3 Class Pipe, 4.50 to 6.0m BGL

250mm dia NP-3 Class Pipe, 1.50 to 3.0m BGL

Constructing Brick Masonry Manhole of various dia and depth as per IS :4111 par1( latest amendment) in FPS brick class designation M-100 in Cement Mortar 1:5 (1 cement : 5 coarse sand) including inside 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 channel 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 (water tightness} 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). 1500 mm internal diameter at bottom ,2.30m-4.95 m depths

1500 mm internal diameter at bottom 4.95 – 9.00 m depths

Deduction in the depth of the manhole to regulate payments for variation of actual depth of manholes in following sizes. 1500 mm dia,2.30m-4.95 mm depths

1500 mm internal diameter at bottom 4.95 – 9.00 m depths

1:4:8 ( 1cement : 4 c/sand , : 8 gradde stone aggregate 40 mm nominal size. (for restoraion of ramp, stair steps, Drain etc.)

1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size) (for restoration of ramp, stair steps, Drain etc.)

Brick masonry work in cement mortar in foundation complete excluding pointing and plastering as per drawing and technical specifications Clauses 600, 1202 & 1203 in Cement mortar 1:4 (1 cement : 4 coarse sand) (for drain, Stair steps etc)

Disposal of surplus earth ,sullage, damaged pipes etc from working site to suitable place,carrying back for refilling of trenches after laying and jointing the pipes upto max distance 60 m one side,disposal of excavated earth from site to suitable place upto max distance 4 km one side including providing of all material, labour, T&P etc., complete required for proper completion of work as per instruction of Engineer in charge.

Barricating in two rows and necessary diversion of path and where as necessary with the help of ballies, ropes, flage, signal and light signal caution boards etc.upto a height of 1.8 m as per requirement including supply of all material, T&P etc. complete.

shifting of Household sewer Domestic connection including supply of all material ,Labour,T&P etc Required for the proper completion of the work. (damaged due to work)

Shifting /Repairing of Household water connection coming in the alignment of sewer line/manhole chambers including excavation ,refilling,supply of all material,pipes,specialsetc for sizes 15 to 20 mm,65mm,80mm,100 mm,150mm making good complete as per entire satisfaction of Engineer in charge. (Damaged during work)

Special Cleaning of manhole chambers Including dewatering, lifting of grit,sullage, mud,garbage, etc.and its disposal including all cost of barricating,labour ,T&P etc required complete for proper completion of work. Manhole chamber depth Upto 1.50 mtr

Manhole chamber depth Upto 3.0 mtr

Plain/reinforced cement concrete in substructure complete as per drawings and technical specification Clauses 802, 804, 805, 806, 807, 1202 ans 1204 for repair work RCC 1:1.5:3 (1 cement : 1.5 coarse sand : 3 graded stone aggregate 20 mm nominal size) (for repairing work)

Qty of steel in item no 15.1( 1.5% by weight of RCC)

Provision for crossing sewers through existing drains coming across the alignment of sewer including making it good after laying the pipe.

Repair of manhole chambers including all cost of removal of damaged part, repair and replacing of CC,brick masonry ,RCC,plastering work,manholecover etc including all cost of barricating ,clogging and declogging of running sewer ,material ,labour ,T&P etc required complete for proper completion of work. (as per unit estimate enclosed) Size of chamber 0.60x0.60x1.50 Meter

Construction of granular sub-base by providing well graded material, spreading in uniform layers with motor grader on prepared surface, mixing by mix in place method with rotavator at OMC, and compacting with smooth wheel roller to achieve the desired density, complete as per Technical Specification Clause 401. For Grading III Material

Road restoration work with 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size)