Construction of drinking water storage tank at Chimbhave Bouddhawadi PWSS Tal-Mahad Dist-Raigad

Item no 1) Designing (aesthetically) andconstructing RCC ground service reservoirs/RCC sumps in M-300 mix of required capacity including excavation in all types of strata foundation concrete container walls bottom slab top RCC roof slab/or dome 20mm

Add For 10% Hilly Area. Note: 1. The designing shall be in accordance with various relevant IS specification. Only MS bars grade I confirming to IS 432 part 1 or high yield strength deformed bars confirming to 15 1786 or IS 1139 shall be used grade II MS bars shall not be used. Entire structure shall be in M-250 only. The scope of pipe assembly work shall be upto 5 meter beyond outside face of the wall cost of pipes valves and specials is not included in the rate but labor cost for laying and jointing is included. The GSR/Sump above 15 lakh liters capacity shall be in two compartment. 6. The job includes designing the structure for up lifts pressure and dewatering if required using entire execution and disposal of surplus excavated stuff with in lead of 50m as directed by Engineer in charge If up lifts considered in design then rate. 7. GSR outlets shall be with bell mouth of approved partern in bottom slab and cost of designing bell mouth is included in the rate Sump well includes cost of suction pit required at bottom. 8. For pipe diameters upto 300mun only Cl pipes and CI specials shall be used For pipe diameters above 300mm MS pipes and specials minimum 10mm thick shall be used with proper anticorrosive epoxy treatment from in side and outside. Cost of pump house is not included in these rates. bove rates are applicable for seismic zones - 2,3 and 4. 11.75% part rate shal. be payable for reinforcement concrete and plastering items of all types of G.S.R.s and sumps till satisfactory hydraulic testing for water tightness these is given and till that work shall be treated as incomplete.

Item no 2) Providing lowering laying and jointing Gl pipes and specials of following class and diameter including conveyance from stores to site of work in position grade and alignment all labour giving satisfactory hydraulic test etc complete either unde. 1) 65mm dia GI B class

2) 50mm dia GI B class

Item no 3) Excavation for foundation in earth soil of all types of sand, gravel, soft murum including removing the excavated materialsupto a distance of 50 Mt. Beyond the building area and lift up to 1.50meters, stacking and spreading as directed including dewatering Unless provided else where preparing the bed for foundation and necessary back filling ramming watering complete excluding shoring and strutting.

Item no 4) Excavation for foundation/pipe trenches insoft rock and old cement and lime masonry foundation asphalt road including removing the excavated material upto a distance of 50 M beyond the area and lifts as below, stacking as directed by Engineer-in-charge, normal dewatering, preparing the bed for foundation and excluding backfilling, etc. complete

Item No.5) Refilling the trenches from excavated stuff with soft material in 15 cm layers with all leads & lifts including consolidation surcharging etc complete

Item no 6) Providing double flange sluice valve confirming for IS-14846 including worn gear arrangements as per test pressure, stainless steel spindle, caps, including inspection charges, transportation upto departmental store, unloading, stacking complete. 65mm valve

50mm valve

b) Air valve 15mun dia