Shifting of Damaged Gravity Sewer Main Pipeline using 200mm Dia DWC and Construction of Machine holes at Arasan Street Near Vellammal School in depot 92, Area VII.

Supplying and Laying of 200mm Dia DWC Pipe

Providing Iron Barricading of size 2.50 m width and 1.75 m height using 40x40x4 mm angle for outer frame supports, 25 x 25 x 3 mm angle for inner frame supports and 20 gauge thickness MS sheet for name board (as per drawing) including cutting, welding, fabrication charges and one coat of primer and 2 coats of enamel paint of approved quality, writing "METRO WATER" & work detail/ caution sign, providing necessary interlocking arrangements with adjoining units, fixing danger flags, danger lights, reflectors, fixing stickers etc, including watching during night and placing the barricading units as directed at the sites

Supply and Deliveryof DWC Structured Wall Polyethylene Piping Systems (Pipe with online/offline coupler and elastomeric sealing ring) with required specials non-smooth external annular corrugated and smooth internal surface (Doublewall) (SN8Class) for non -pressure underground sewerage, drainage application generally as per IS-16098 (Part-2) type B. 200mm dia

Laying DWC pipes including earth work excavation for trenches in hard stiff clay,black cotton, hard red earth, shales, murams, gravel, stoney earth and earth mixed with small size boulders and hard gravelly soild Depositing the earth on banks with initial lead of 10m and initial lift of 2m carting the pipes from any of the Board’s Stores to the site of work lowering into the trenches, aligning, watering and ramming to consolidation,etc.,complete for the pipes of following diametres. (Timbering included for Depths 2.50m,3.0m)

200mm ID dia DWC pipe @ 1.5 m deep

200mm ID dia DWC pipe @ 2.0 m deep

200mm ID dia DWC pipe @ 2.5 m deep

200mm ID dia DWC pipe @ 3.0 m deep

Supplying and filling quarry dust

CC 1:2:4 using Cruhed stone-M sand 20mm gauge HB stone jelly for PCC works including laying ramming curing etc complete