Construction of 60 MLD raw water pumping station on Kushawati river at Quepem, strengthening of SIP canal and upgradation of the Davorlim pumping station to supply uninterrupted raw water to drinking water treatment plant PART II

SUB- ESTIMATE NO. I : Conveying and laying of Risig Main of Dia 800 mm DI Pipe from CH 3.00 to 11.00 Km from Kushawati to Davorlim Pumping Station Earthwork in excavation by mechanical/ manual means in all types of strata comprising any of the materials such as soil, silt, sand, clay, gravel, morrum of all varieties, Shingles, pebbles and all types of conglomerates laterite rock, soft rock ordinary rock, disintegrated rock fissured rock, weathered rock shattered rock, decomposed rock and all such other materials either in full or in parts as the case may be adopting any approved method or methods as may be convenient or permitted including chiseling, wedging etc blasting prohibited in all conditions such as dry, moist, saturated, submerged, foul conditions etc. including pumping and bailing out water including setting out construction of shoring and bracing in removal of stumps and other deleterious material, dressing of sides and disposing off the remaining excavated soil/ rock as directed by Engineer-in-charge for all leads and all lifts etc. complete

Rubble packing with hard laterite stone under floors including watering ramming and consolidating etc. in pipeline trenches and other foundations complete

Providing & laying cement concrete 1:2:4 (1 cement: 2 coarse sand: 4 graded granitic or basaltic stone aggrt. 20 mm. nominal size) excluding cost of centering, shuttering and finishing in: a) All works upto plinth level

Providing and laying in position (1:11/2:3) Reinforced cement conrete excluding the cost of centering, shuttering, finishing and reinfrocement (1 cement: 1½ coarse sand:3 graded stone agg 20mm nominal size) All works upto plinth level

Centering & shuttering including Strutting, Propping & removal of forms for a) Foundations, Footings, Bases for columns

Providing TMT steel reinforcement bars of (SAIL, TATA. VIZAG, JSW Steel Ltd.)(Confirming to IS 1786 of 1986) for RCC work (conforming to I.S. 1786 of 1986) including bending, binding & placing in position in all the floors along with the factory made precast concrete cover blocks of specified sizes whose compressive strength is not less than that of surrounding concrete in the structural member.

Supplying at store or site of work including railway freight, carting, loading and unloading, stacking etc. Centrifugally cast, (spun) ductile iron pressure pipes (with socket/spigot ends) conforming to IS : 8329-2000 with cement mortar lining inside the pipe and outside zinc coat as per IS : 8329-2000 with up to date amendments suitable for jointing with rubber gasket known as TYTON joints. Class K-9 . Nominal Diameter in mm 800

Manufacturing and supplying at site of work welded MS pipes of finished ID of suitable lengths made out of fabricating, welding forming 'V' edge to both ends of the pipes sides including providing and fixing welding etc. of suitable MS hinges conforming to relevant IS codes, stresses induced due to trench conditions, backfilling class 'A' traffic loading, handling temperature variation etc. testing the pipeline to a field test pressure of 25 kg /cm2 as directed by Engineer-in-charge. (the finished internal dia. is to be considered without cement mortar lining /Epoxy painting). B) 12 mm thick (plate welded) Dia in mm d) 800

1100 mm dia x 12 mm thick m.s.casing pipe jacking method Road crossing excluding cost of supply of m . S.pipe

Supplying at store or site of work including railway freight, carting, loading, unloading, stacking etc. Cast iron double flanged manually operated Sluice Valve,generally conforming to IS:14846 - 2000, having body, door, dome, wedge in graded cast iron to IS:210 Gr. FG 200, four faces and spindle nut of leaded tin bronze to IS:318 Gr. LTB 2, inside screw of non-rising stainless steel AISI 410 ,spindle, flanges drilled to IS: 1538 Table 4 & 6. Valves tested by closed end method only (350mm and above will be fitted with BTB and Spur gear box and back seat bush.) etc complete TYPE P.N. 1.6 (Class A ) Dia in mm 800