Construction of MTBM, TBM, RCC Gauge Posts, Supply and Installation of MS Gauge Posts, FRP Gauge Plates at HO Sites under MBD, CWC, Guwahati for the FY 2026-27.

Fabrication and Installation of Gauge Posts at river banks including cost of civil works in foundation embedded in 1:2:4 reinforced cement concrete pedestal block of size 60 cm x 60 cm x 60 cm including the cost of steel reinforcement, centering, shuttering, finishing reinforcement over the 1:4:8 (1 cement : 4 coarse sand : 8 graded stone aggregate 40 mm nominal size) cement concrete base of size 80 cm x 80 cm x 15 cm with 12 mm thick plastering complete and marking the gauge with synthetic enamel with standard metric gradation of 5 mm thickness in black & white alternately & red synthetic enamel of 5 mm width at every 100 mm etc. complete (excluding retro reflective paints): Reinforced Cement Concrete gauge post of size 15 cm x 10 cm (one side tapered in 5 cm length) made with 1:2:4 concrete mix (1 cement: 2 coarse sand: 4 graded stone aggregate 20 mm nominal size)-1.80 m long.

Fabrication and Installation of Gauge Posts at river banks including cost of civil works in foundation embedded in 1:2:4 reinforced cement concrete pedestal block of size 60 cm x 60 cm x 60 cm including the cost of steel reinforcement, centering, shuttering, finishing reinforcement over the 1:4:8 (1 cement : 4 coarse sand : 8 graded stone aggregate 40 mm nominal size) cement concrete base of size 80 cm x 80 cm x 15 cm with 12 mm thick plastering complete and marking the gauge with synthetic enamel with standard metric gradation of 5 mm thickness in black & white alternately & red synthetic enamel of 5 mm width at every 100 mm etc. complete: MS Gauge Post made of ISMC 100 x 40 with 6mm thickness and 2 m long.

Supply and installation of FRP gauge plates(30cm) on existing structure at riverbanks including cost of civil works and marking the gauge with synthetic enamel with standard metric gradation of 5 mm thickness in black and white alternatively and red synthetic enamel of 5 mm of width at every 100 mm complete

Establishment of different types of bench mark of standard specifications including its painting, engraving etc. complete including cost of manpower, material, labour, etc, as per directions of engineer-in-charge: Musto Type Benchmark (MTBM) madeoverall Size (Plan): 1500 mm x 1500 mm, Height (Section) 1650 mm (900 mm below ground level + 750 mm above), Wall Thickness: 250 mm (brick masonry with plaster on both sides),40 mm stone aggregate filled inside the chamber Jamuna Sand or Equivalent using an 8 mm thick MS plate with Jtype anchors welded to it, supported over a 1:2:4 RCC (M15) structure resting on a 1:4:8 PCC (M7.5) base. The unit is provided with a 75 mm diameter PVC pipe through the pedestal for protection. It includes 4 numbers of 12 mm diameter reinforcement bars.

Establishment of different types of bench mark of standard specifications including its painting, engraving etc. complete including cost of manpower, material, labour, etc, as per directions of engineer-in-charge: Temporary Benchmark (TBM) madeoverall Size (Plan): 900 mm x 900 mm, Height (Section): 600 mm (300 mm below ground level + 300 mm above), 12mm thick plaster on all exposed surface, 8 mm thick MS plate with J-type anchors welded to it, supported over a 1:2:4 RCC (M15) structure resting on a 1:4:8 RCC (M7.5) base. Top Pedestal1:2:4 (M15) Properly compacted and finished consists 04 numbers of 12 mm diameter reinforcement bars.