construction of strom water drain with rcc slab culvert at ward no.11 kadapakkam near yashirbhai house to corporative society bankin edaikazhinadu town panchayat chengalpattu district; 1 earth work excavation for foundation in hard stiff clay,except in hardrock reqiring blasting inclusive of shoring shuttering and bailing out water wherever necessary refilling the sides of foundation with excavated soilwell rammed and completed depositing the surplus excavated soil with in the compound in places shown by the departmental officrs with initial lead and lifts and cleaning, levelling, the site etc., complete as per ss 20b for foundation 2 plain cement concrete 1:4:8 (one part of cement, four part of crushed stone sand (m- sand) and eight part of 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 and all incidential charges such as water providing etc., complete as per standard specification 3 centering for soffits of cc slabs of plane surface like lintels, beams, etc., including strutting 3m high using mild steel sheets of size 90cm x 60cm x and bg 10 stiffened with ms angles of size 25mm x 25mm x 3mm laid over silver oak joists of size 10cm x 6.5 cm spaced at about 90 cm c/c and supported by consurina props of 10 cm to 13cm dia spaced of 75cm c/c complying with standard specifications and as directed by the departmentsl officers etc., complete 4 plain cement concrete 1:1.5:3 (one part of cement, one and half part of crushed sand (m- sand), three coarse aggregates) using 20mm 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 5 plastering with cement mortar 1:5 (one part of cement and five part of plastering sand (p- sand)) 12mm, thick in all floors including cost and conveyance of all materilas to site and labour charges etc,complete as per standard specifications