tender for emergent palliative restoration of tilpara mihirlal barrage by placing sand filled non woven mega geo bags & mechanically woven double twisted hexagonal shaped wire mesh gabion boxes filled with sand filled hdpe bags at downstream bed within block-suri-i, p.s.-suri, dist- birbhum. , supply of staple fibre polyester (pes) virgin type or polypropylene (pp) non woven mega geo bag (2.0m x 1.50m) with virgin fibers with more than 80% uv resistance shall be used as raw material for making fabric and geo-bags having min mass of 400 gsm and tensile strength of 22/24 kn/m in md/cd and elongation of 60/60% .the geo textile bag have puncture resistence of 4100 n and abration resistence of 4100 n, uv resistance of 75% of strength after 500 h, min. no recycled fiber shall be allowed for making geo textile bags as per is 16653 : 2017. rate should be inclusive of supply at site and with out gst & other taxes if any , supply of gabion structure with mechanically woven double twisted hexagonal shaped wire mesh gabion boxes as per is 16014:2012, morth clause 2500, of required size, mesh type 10x12(d=100 mm with tolerance of ±2%), zinc+pvc coated, mesh wire diameter min 2.70/3.70(id/od) mm, tying with lacing wire of diameter 2.2mm, supplied @3% by weight of gabion boxes. rate should be inclusive of supply at site and with out gst & other taxes if any size 1.5 m x 1.5 m x 0.5 m