Maintenance contract for the removal of chock ages, cleaning and repairs of rectangular inspection chambers and circular manhole chambers of sewerage system in Western part of Central Avenue road at Anushaktinagar and Western sector, Mumbai-400094.

Amount

GENERAL ABSTRACT

PART A - Planting work 4 months

Description of Work / Item(s)

Amount

PART A Planting work 4 months

Attending chockages complaints of external sewer lines including removal of chockages in rectangular inspection chambers and circular manhole chambers & external sewer lines and removing hard chockages through openings made on pipe lines, closing this openings after the work is completed including removing all settlements, silt, stones, other wastes thoroughly with flexible steel rods, MS rods, powdas, split bamboos, brushes and other cleaning attachments to facilitate smooth flow, closing of rat holes and other gaps around connections & other openings, lifting the rubbish & other waste materials, transporting and dumping the same at suitable locations within 500M. Lead levelling stacking etc. all complete as directed by the Engineer-in-Charge

Between gully trap & inspection chambers

Between rectangular inspection chambers

Between Circular manhole chambers

Upto 1.50m depth from GL

From 1.50m to 3.0m below GL

Plain cement concrete 1:2:4 using graded stone aggregate of 40mm maximum size including consolidation, formwork, scaffolding, finishing, curing etc. complete all as per specifications & as directed all as per specifications & as directed by EIC

Brick work in cement mortar 1:6 using well burnt locally available bricks of approved quality including raking out joints above ground level simultaneous pointing below ground level, curing, scaffolding, demolishing existing brick work at all levels and disposal of debris out side of colony etc. all complete as per specification and as directed by Engineer-in-Charge.

Water proof cement plaster 20mm thick in cement mortar 1:3 with water proofing compound @ 2% by weight of cement for external wall surfaces of sewer line chambers including preparation of surface removing & disposal of damaged plaster curing including the cost of water proofing compound