tender for construction of drain at thattaneri indiranagarinsholur town panchayat - iyothee thass pandithar habitation development scheme 2025-2026.; 1 earthwork excavation for open cutting and depositing on bank within initial lead of 10mt and initial lift of 2mt in hard stiff clay ,stiff black cotton hard red earth shales murrams gravel stoney earth and earth mixed with small size boulders and hard gravelly soilexcept rock etc., complete complying with standard specification.as per ss 20 b tndss no 23&24 vi (s2 ),vii 9,10 2 plain cement concrete 1:4:8 mix using 40mmhard broken granitestone (i.s.s ) metalfromapprovedquarryincludingcost and conveyances of all materials to site and all handling charges at both ends cost of from work labour for mixing concrete trasporting laying curing of concrete and all other tools and plants including other incidencial charges such as bailing out of water ,maintainingprotectivebundsand cofferdamsetc.,complete(for base coursetobodywalloftheculvertandsurface drain ) complying with standard specification.tndss no 28 v,vi ( s2 ) v,vi (s5a) vii 3 supplying and erecting of centering to sides and soffits including supports and strutting for drainages sides and culverts body wall sides using 90 cm x 60 cm and b.g.10 stiffenend with welded mild steel angles of size 25 mm x 25 mm x 3 mm for boarding laid over (silver oak joists) of size 10 cm x 6.50 cm spread at about 90 cm etc.,complete complying with standard specification.tndss no ;30 & 86 4 plain cement concrete 1:2:4 mixusing 20mmhardbrokengranitestone (i.s.s ) metal from approved quarry including cost and conveyances of all materials to site and all handling charges at both ends cost of from work labour for mixing concrete trasporting laying curing of concrete and all other tools and plants including other incidencial charges such as bailing out of water ,maintaining protective bunds and coffer dams etc.,complete complying with standard specification.tndss no ;9 & 28