tender for supply and construction of under ground ads; 1 work consist supply and construction of under ground ads 2 supply and construction of ug ads. the under ground ads should have over all external dimension 22150 x 6450mm covered by an externalrcc wall. the internal structures of dimension 18550mm x 6450mm with a clear internal height of 3000mm will be rcc framed structure with rcc footing, column, plinth beams. the rcc roof of the structure will be constr over 1 mm thick deck sheet. pre cast u drain will be provided along the rcc retaining wall. roof will be provided with 600 mm of earth cover (ohp). technical specification of the work involve are as per rfp specification given in appx a & store list as per appx b and store list of rcc retaining wall of height 3.00 mtr as per appx c, includes supply of stores for and shifting of stores from for to worksite.