Special Repairs to pipewater supply scheme ATShirgaon (V.P.- Shirgaon) Tal. Shahapur Dist. Thane

Subwork NO 1 Well Repair Item NO 1 Dismantling the usr masonry work and sorting out the materials such as steel etc. as directed and stacking them within the specified lead as directed etc. complete.

Item NO 2 Providing uncoursed rubble masonry of trap / granite / quartzite /gneiss stones in cement mortar 1:6 in foundation and plinth of innerwalls / in plinth of external walls including bailing out water manually , striking joints on un exposed faces and water ing etc.complete.

Item NO 3 Dewatering the excavated trenches and pools of water in the building trenches / pipeline trenches, well works by using pumps and other devices including disposing off water to safe distance as directed by Engineer-in charge (including cost of machinery, labour, fuel), etc. complete. (Bd-A-9/261)

Item NO 4 Providing flush grooved pointing with cement mortar 1:3 for stone masonry work including scaffolding and curing etc. complete.

Item NO 5 Desilting the Supply Well, Intake Well / Head Works, Sump of water supply / sewerage works etc. in wet or dry condition including lifts upto 9 M and lead upto 150 M as required beyond the work site, stacking, spreading, including necessary guarding, etc. complete, as directed by Engineer-in-charge.

Subwork No2 ESR / Switch room Repair Item NO 1 Providing and fixing G.I. pipe railing having 1.0 M height consisting 50 x 50 x 6 mm thick M.S. angles as verticals at 1.5 M c/c and additional posts at every corner with 3 rows of 25 mm dia G.I. pipes of medium class variety as horizontal and painting 3 coats of oil paint over 1 coat of anticorrosive paint of approved colour and shade including cost of all labour, transporting bends to curved shape, etc. complete.

Item NO 2 Providing and fixing in position M.S. ladder 0.50 M wide consisting of 75 x 10 mm M.S. flats as stringers and 16 mm dia M.S. bars in double rows as steps placed at 25 cm c/c including cost of material and labour involved, welding, anchoring and applying 3 coats of anticorrosive paint, etc. complete as directed by Engineer-incharge.

Item NO 3 Providing internal cement plaster 20mm. thick in Single coats in cement mortar 1:3 without neeru finish, to concrete, brick surface, in all positions including scaffolding and curing etc. complete.

Item NO 4 Providing and applying washable oil-bound distemper of approved colour and shade to old and new surfaces in one coat including scaffolding, preparing the surfaces. (excluding the primer coat.)etc. complete

Item NO 5 Providing and fixing rolling shutter fabricated from steel laths of minimum thickness 0.9 mm with lock plate of 3.15 mm thickness reinforced with 35 x 35 x 5 mm angle section fitted with sliding bolts and handles for both sides, deep M.S. channel section of depth and thickness not less than 65 mm and 3.15 mm respectively with hold fast arrangements, M.S. Bracket plate 300 x 300 x 3.15 mm minimum size and shape with square bar, suspension shaft of minimum 32 mm diameter, hood cover of M.S. sheet not less than 0.9 mm thickness and of any size at top and safety devices including mechanical gear operation arrangement consisting of worm gear wheels and worms of high grade cast iron or mild steel and one coat of red lead primer etc. complete. (I.S. 62481979) (Without mechanical gear)