SSI, DGN AND CONSTR OF TWO NOS MAJ PMT BDG OF SPAN 50M OVER HMARANGLUI RIVER AT KM 98.100 AND 45 M OVER CHOTTA GOLSURI RIVER AT KM 140.875 ON RD L-D-P INCL BOTH SIDE APPROACH ROAD FOR ALL TWO BRs UNDER 71 RCC/24 TF UNDER PRO PSK IN MIZORAM

Sub Soil Investigation, Design including proof checking and construction of 50.00 m Single span Major Pmt bridge with PSC box girder Superstructure on open foundation over Hmaranglui Nallah at Km 98.100 on Lawngtlai-Diltlang-Parva Road under 71 RCC / 24 BRTF Project Pushpak in Mizoram State with span arrangement as per NIT Drg and based on hydraulic data, ground data, sub soil data, Special conditions, Particular specifications of the tender document. Construction works includes all preparatory work, Erection of staging/shuttering, abutments, wing walls, return wall, placing of POT cum PTFE bearings, casting of PSC box girder superstructure, wearing coat having nonskid surface in uniform thickness, strip seal expansion joints, foot paths, kerbs, RCC hand rails, Crash barrier, drainage spout, back filling behind abutments , wing walls, return wall , approach slab, temporary river training works and diversion, Painting and all other items of works required for the completion of the bridge including curing and load testing Drg No B-2142/B&T Dte/Psk/2020 dt 28 Oct 2020

Sub Soil Investigation, Design including proof checking and construction of 45.00 m Single span Major Pmt bridge with PSC box girder Superstructure on open foundation over Chotta Golsuri River at Km 140.875 on Lawngtlai-Diltlang-Parva Road under 71RCC / 24BRTF Project Pushpak in Mizoram State with span arrangement as per NIT Drg and based on hydraulic data, ground data, sub soil data, Special conditions, Particular specifications of the tender document. Construction works includes all preparatory work, Erection of staging/shuttering, abutments, wing walls, return wall, placing of POT cum PTFE bearings, casting of PSC box girder superstructure, wearing coat having nonskid surface in uniform thickness, strip seal expansion joints, foot paths, kerbs, RCC hand rails, Crash barrier, drainage spout, back filling behind abutments , wing walls, return wall ,approach slab, temporary river training works and diversion, Painting and all other items of works required for the completion of the bridge including curing and load testing Drg No B-2129/B&T Dte/Psk/2020 dt 28 Oct 2020.

Jungle clearance including cutting down trees not exceeding 30 cm girth measured at 1 meter above ground level & clearing away shrubs, brushwood, under growth & grubbing up roots in areas having annual rain fall more than 200 cm

Rough excavation in soil/soil mixed with small boulders, getting out and disposing all excavated material lead upto 6 m and upto 1.5 m deep (75% machine and 25% by manual labour)

Earthwork in embankment by filling with earth free from roots etc. spreading in layers not exceeding 30 cm including watering and finishing to required slope & level not exceeding 1.5 m high above the base in ordinary soil in hill roads where cut & fill method is adopted.

For every additional 1.50m lift or part thereof beyond the initial lift of 1.50 m in ordinary soil.

Excavation in trenches not exceeding 1.2 m width and 1.5 m depth in soil/soil mixed with boulders (SMB), including dressing bottom and sides getting out and disposing all excavated material lead upto 6 m and lift upto 1.5 m. (by manual means)