tender for supply and construction of str of op tr (nakyo gg to ledge) (4.5km); 1 construction materials.cement 43 grade opc packed in hdpe bag each 50 kg wt conform to is 8112-1989 (make: birla gold/ambuja/ ultratech/acc/jk/dalmia). 2 coarse sand free from vegetation 3 coarse aggregate 20mm graded 4 hard core 63-90 mm graded 5 coarse agg 45 to 63mm graded for wbm 6 stone screening 12 to 20 mm grading for wbm 7 binding material (stone dust/murroum) for wbm 8 80 mm thick coloured interlocking precast paver block i shape and size confirming to is 15658- 2006, grade m-40 of size 250mmx125mmx80mm 9 wooden scantling various sizes 10 wooden planks for shuttering iind class wood of size 3.0 x 0.30 x 0.026m 11 labour charges on construction materials 12 pcc drainage.cement 43 grade opc packed in hdpe bag each 50 kg wt conform to is 8112-1989 (make: birla gold/ambuja/ ultratech/acc/jk/dalmia). 13 coarse sand free from vegetation 14 coarse aggregate 20m graded 15 coarse aggregate 40mm graded 16 wooden planks for shuttering iind class wood of size 3.0 x 0.30 x 0.026m 17 wooden scantling various sizes 18 labour charges on construction of drainage 19 construction for 62.5 nos mtrl for retaining wall 4 mtr ht length = 62.5 nos x 8.00 = 500.00 rm.cement 43 grade opc packed in hdpe bag each 50 kg wt conform to is 8112-1989 (make: birla gold/ambuja/ ultratech/acc/jk/dalmia). 20 coarse sand free from vegetation 21 coarse aggregate 40mm graded 22 stone boulder 9 to 12 23 pvc pipe 75mm dia 3 mtr long make-prince/finolex/supreme or eqvlt 24 labour charges of construction of retaining wall