Maintenance and Repair works to the storm water drain at ward areas in ward no 42 of west zone, Coimbatore Corporation.

Amount

Dismantling the damaged RCC Slab as per Instruction of departmental officers..including all initial lead and lift etc complete.

Dismantling the existing damaged Cement Concrete including all labours etc., complete

Desilting the existing drain including all labours etc., complete

Earth work excavation for foundation in all kinds of soils and sub soils to full depth as directed by the departmental officers except hard rock inclusive of shoring strutting and balling out water wherever necessary and refilling the sides of foundation with excavated earth in layers of 15cm thick well rammed and consolidated and depositing the surplus earth with in the compound in places shown by the departmental officers with initial lead of 10 meters and initial lift of 2 meters including cost of all labour charges etc.

Plain Cement concrete 1:4:8 mix (one cement, four sand, eight metal) using 40mm size Hard Broken stone etc complete

Supplying and erecting CENTERING for sides and soffits including supports and strutting upto 3.29m high for plane surfaces for drain, culverts etc., using mild steel sheets of size 90cm * 60cm and BG 10 stiffened with welded mild steel angles of size 25mm * 25mm * 3mm for boarding laid over countrywood joists of size 10cm * 6.5cm spaced at about 90cm centre to centre and supported by Casuarina props of 10cm to 13cm dia spaced at 75cm centre to centre etc., complete as directed.

Plain Cement Concrete 1:3:6 (one cement, three fine aggregates and six coarse aggregates) using 40mm size ISS HBG metal including cost and conveyance of all materials to site and including for the mixing, laying and labour charges etc., complete as per standard specification

Plastering with cement mortar 1:5 mix (one cement,five sand) to 10mm thick etc. complete as per the direction of Engineer-in-charge

Conveying the excavated earth from the site from 0 to 15 km lead including loading and unloading charges etc., completed.

C BALASUBRAMANIAN