tender for annual maintenance estimate for water supply and sewerage in civic park and residential area, mt bhattu (2025-2026) - annual maintenance for water supply and sewerage in civic park and residential area, mt bhattu (2025-2026). “replacement of 100 mm dia asbestos water supply line with 150 mm k-7 pipe and relaying of interlocking paver block in mt bhattu and all other works contingent thereto” (including one year mtc. and defect liability period free of cost)a/c rs. 4.44 lacs sl. no. item description 1 [17.69.2]interlocking concrete block pavement 2. providing and laying 80 mm thick isi marked interlocking paver blocks conforming to is 15658:2006/irc sp 63: 2004 of all shapes and colours in design mix cement m 40 over the bed of 30 mm thick fine sand complete in all respect. 2 [20.58.2]providing and fixing cast iron detachable joints class-15 marked with is: 8794 for use with asbestos cement pressure pipes complete with 2 nos. rubber rings marked with is:5382 and is:10292 and appropriate number of nut and bolts marked with is:1363 including carriage, loading, unloading etc. complete in all respects to the satisfaction of the engineer-in-charge. (excavation will be paid separately) 2. 100mm i/d cid joint 3 [20.64.1]providing, lowering, laying in trenches, aligning, fixing in position and jointing ductile iron (di) isi marked k-7 grade sands pipes as per is:8329-2000 (amended up to date), with internal cement mortar lining for potable water with rubber ring (epdm/sbr) joints as per is: 5382-1985 (excluding special accessories) complete including all material, labour, hydraulic testing and commissioning as per technical specifications and as per direction of engineer. note: e/w to be measured and paid separately. 1. 100 mm i/d 4 [20.68.1]providing, lowering, laying in trenches, aligning, fixing in position and jointing at all level/depths ductile iron (di) standard specials plain /flanged/ socketed confirming to is9523-2000 with rubber ring (epdm/sbr) joints such as tees, bends, tapers, caps etc. with in trenches in di pipe line complete including all material, labour, testing and commissioning along with pipe line as per technical specifications and as per direction of engineer. 1. up to 300mm dia 5 [22.162.1.1]providing and fixing c.i. sluice valves (with cap) complete with bolts, nuts, rubber insertions etc. (the tail pieces if required will be paid separately) : 1.1. 100 mm diameter class i 6 [22.185.3]providing and fixing c.i. double acting air valve of approved quality with bolts, nuts, rubber insertions etc. complete (the tail pieces, tapers etc if required will be paid separately) : 3. 100 mm dia 7 [4.16.1.2]excavating trenches of required width and depth for pipes, cables, etc including excavation for sockets, and dressing of sides, ramming of bottoms, including getting out the excavated soil, and then returning the soil as required, in layers not exceeding 20 cm in depth, including consolidating each deposited layer by ramming, watering, etc. and disposing of surplus excavated soil as directed, within a lead of 50 m. 1.2. all kind of soil pipes, cables etc, exceeding 80 mm dia but not exceeding 300 mm dia. 8 [5.47.2]dismantling precast concrete or stone slabs in walls, partition walls etc. including stacking within 50 metres lead : 2. thickness above 40 mm up to 75 mm