Construction of Sewerage Pumping Station at AP road jn. Perambur Barracks Road in Depot 58, Area V

Bill No: 1 - Screen cum Grit well

Earth work excavation in hard stiff clay, stiff black cotton, hard red earth, shales, murum, gravel, stoney earth or earth mixed with small size boulders and hard gravely soil as per SS20B with initial lead of 10m and lift of 2m etc. complete.

For 0 to 2 m depth

Providing form work with centering for soffits of reinforced cement concrete slabs or plain surfaces including shuttering for RCC well curb and well steining.

From 1.0m above ground level to 3.0m below ground level (Curved Surface)

9 m to 10 m below GL

Providing and laying in position machine batched machine mixed and machine vibrated design mix. Sulphate resistance cement concrete M30 grade (River sand) for reinforced cement concrete structural elements under controlled water cement ratio with plasticiser using 20mm and down graded machine broken granite stone jelly excluding the cost of centering and shuttering and reinforcement but including curing, Mixer, vibrator, etc. as per standard specification and as directed at site

From 1.0m above ground level to 1.5m below ground level

From 1.5m to 4.5m below ground level

From 9.0m to 13.5m below ground level