Restoration of damaged protection wall of Penstock near Valve House at BSPS, Surangani

Demolishing cement concrete manually/ by mechanical means including disposal of material within 50 metres lead as per direction of Engineer - in - charge: Nominal concrete 1:3:6 or richer mix (i/c equivalent design mix)

Earth work in surface excavation not exceeding 30 cm in depth but exceeding 1.5 m in width as well as 10 sqm on plan including getting out and disposal of excavated earth upto 50 m and lift upto 1.5 m, as directed by Engineer-in- Charge: All kinds of soil

Earth work in excavation by mechanical means (Hydraulic excavator) / manual means in foundation trenches or drains (not exceeding 1.5 m in width or 10 sqm on plan), including dressing of sides and ramming of bottoms, lift upto 1.5 m, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m.: All kinds of soil.

Centering and shuttering including strutting, propping etc. and removal of form work for : Retaining walls, return walls, walls (any thickness) including attached pilasters, buttresses, plinth and string courses fillets, kerbs and steps etc.

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level :1:2:4 (1 cement : 2 coarse sand) : 4 graded stone aggregate 20 mm nominal size)

Providing & making 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 coated, Mesh wire diameter 3.0 mm, mechanically edged/selvedged with partitions at every 1m interval and shall have minimum 10 numbers of openings per meter of mesh perpendicular to twist, tying with lacing wire of diameter 2.2mm, supplied @3% by weight of Gabion boxes, filled with boulders with least dimension of 200 mm, as per drawing, all complete as per direction of Engineer-in-charge

Providing weepholes in brick masonry / stone masonry /plain reinforced concrete abutment, wing wall, return wall with 100 mm dia PVC pipe extending through the full with of the structures with slop of 1(v):20(H) towards drawing face complete as per drawing and technical specification clauses 614, 709, 1204.3.7

Stone filling behind retaining walls :

Carriage of material by Manual Labour including loading, unloading and stacking for lead upto 0.50 KM & Every additional lead of 50 metre or part thereof beyond 1st 50 metre upto 9 such additional lead.: (Carriage of materials consider for part thereof beyond1st 50 metre upto 7 such additional lead):-Sand, stone aggregate below 40 mm nominal size

Carriage of material by Manual Labour including loading, unloading and stacking for lead upto 0.50 KM & Every additional lead of 50 metre or part thereof beyond 1st 50 metre upto 9 such additional lead.: (Carriage of materials consider for part thereof beyond1st 50 metre upto 7 such additional lead):-Cement

Carriage of material by Manual Labour including loading, unloading and stacking for lead upto 0.50 KM & Every additional lead of 50 metre or part thereof beyond 1st 50 metre upto 9 such additional lead.: (Carriage of materials consider for part thereof beyond1st 50 metre upto 7 such additional lead):-Stone blocks,G.I.,C.I. Stainless Steel pipes below 100 mm dia and other heavy material

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