tender for 1.construcion of oht tank 30000 lit in kolappancheri colony in kolappancheri panchayat , earth work excavation & depositing on bank with an initial lead of 10 metre & initial lift of 2 metre in hard shift clay, stiff block cotton, hard red earth shales, murrum, gravel, stoney earth, and earth mixed with small size boulders and hard gravelly soil (ss 20b) for foundation including shoring, strutting, baling out water providing danger light wherever necessary depositing the surplus earth on bank and other incedential charges etc., complete and as directed by twad board officers , first depth of 2m from 0 to 2 m below gl , second depth of 2m from 2m to 4 m below gl , sand filling for foundation with clear river sand including cost of sand, watering ,ramming and consolidation etc complete as directed by twad bord officers , cement concrete 1:4:8 using 40mm hbg metal including cost and conveyance of all materials to site and all labour charges etc. complete , reinforced cement concrete mix m30 grade using 10mm & 20mm hard blue granite broken stone (machine crushed) excluding the cost of rts rods for reinforcement and centering, strutting, shuttering but including cost of all materials mixing, laying, vibrating the concrete with mechanical vibrators, ramming, consolidating, finishing and curing etc., complete and as directed by the twad board officers. , below 1.5m from gl , 0m to 1.50m below gl , 0m to 4.50m above gl , 4.50 m to 7.32 m above gl , 7.32 m to 10.98 m above gl , 10.98 m to 14.64 m above gl , 14.64 m to 18.30 m above gl , supply and erection of steel centering, shuttering for soffits and sides including necessary supports and strutting for all reinforced cement concrete works using ms sheets of suitable size of bg10 stiffened with ms angle of size 25 x 25 x 3 mm for boarding laid over i type ms truss of size 25 x 25 x 3mm about 90cm c/c and supported by 40mm gi pipes (medium) spaced at 75cm c/c etc complete and as directed by the twad board officers