Flood Protection work at vulnerable points on Right Bank of Karpet Nallah Left Bank of Miyar Nallah to mitigate flood disaster in Kerpet Chhaling GP Chimret, Distt. Lahaul Spiti HP Under SDMF

Earthwork in excavation by mechanical means (Hydraulic Excavator)/manual means in foundation trenches or drains (not exceeding 1.5 mtr. in width or 10 sqm on plan) including dressing of sides and ramming of bottoms, lift up to 1.5 mtr. including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 mtr. in all kinds of soil in all leads and lifts and to the entire satisfaction of the Engineer-in-Charge. (Pick work 80%, Jumper work 5% & Chiselling/wedging out of rock where blasting is prohibited : Hard Rock 15%)

Providing and laying in position cement concrete 1:4:8 (1 cement : 4 coarse sand : 8 graded stone aggregate 40 mm nominal size) excluding the cost of centering and shuttering : All work up to plinth level in all leads and lifts and to the entire satisfaction of the Engineer-in-Charge.

Providing and laying in position reinforced cement concrete 1:1.5:3 (1 cement : 1.5 coarse sand : 3 graded stone aggregate 20 mm nominal size) (M-20) work in walls (any thickness), including attached pilasters, buttresses, plinth and string courses, fillets, columns, pillars, piers, abutments, posts and struts etc. above plinth level up to floor five level, excluding cost of centering, shuttering, finishing and reinforcement in all leads and lifts and to the entire satisfaction of the Engineer-in-Charge.

Providing and fixing centering and shuttering including strutting, propping etc. and removal of form for all heights: Walls (any thickness) including attached pilasters, buttresses, plinth and string courses etc. in all leads and lifts and to the entire satisfaction of the Engineer-in-Charge.

Providing and laying stone / boulder filling in layers in the apron of guide banks, embankment or protection work, in wire crates made of G.I. wire filled with boulders having square-cut faces against the wire. The size of boulder/stone used in the apron shall be larger than the mesh opening (i.e., more than 15 cm x 15 cm) with a proportionate weight not less than 18 kg (wire crates to be measured and paid for separately), in all leads and lifts and to the entire satisfaction of the Engineer-in-Charge.

Providing wire crates made of HDGI (Hot-Dip Galvanized Iron) wire conforming to IS 280-2006 with all latest amendments, with zinc coating as per Table I of IS 4826:1979, hand-woven (double twisted) and filled with boulders having square-cut faces against the wire (boulder filling to be measured and paid for separately). G.I. wire of 5 mm diameter corresponding to SWG-6, with 15 x 15 cm mesh, to be used in apron and sloping pitching, complete with all leads and lifts, including carriage of material, and executed to the entire satisfaction of the Engineer-in-Charge.

Providing and placing steel reinforcement (Tor steel Fe 415) for R.C.C. work including straightening, cutting, bending, placing in position and binding, all complete in substructure in all leads and lifts and to the entire satisfaction of the Engineer-in-Charge & as per drawings and technical specification.

Providing weep holes in brick masonry / stone masonry / plain reinforced concrete abutment, wing wall, return wall with 110 mm dia. (Phinolex / Diplast having 4 kg/mm² pressure) PVC pipe extending through the full width of the structure with slope of 1 (V) : 20 (H) towards draining face, complete as per direction of the Engineer-in-Charge & as per drawings and technical specification. Clauses 614, 709, 1204.3.7.

Providing and laying filter media with granular crushed aggregates as per specification to a thickness of not less than 600 mm with smaller size towards the soil and bigger size towards the wall and providing over the entire surface behind abutment, wing wall, return wall to the full height, compacted to firm condition, complete as per drawing and technical specification in all leads and lifts and to the entire satisfaction of the Engineer-in-Charge. Clauses 1204.3.8 (Filter Media).

Filling available excavated earth (excluding rock) in trenches, plinth, sides of foundations etc. in layers not exceeding 20 cm in depth, consolidating each deposited layer by ramming and watering, lead up to 50 mtr. and lift up to 1.5 mtr. in all leads and lifts and to the entire satisfaction of the Engineer-in-Charge.

Providing, supplying and testing of Ultrasonic Pulse Velocity (UPV) Tester of make Pundit PL-200 or equivalent model of any other reputed manufacturer, as approved by the Engineer-in-Charge, complete in all respects. The item includes supply of main testing unit, transducers, connecting cables, calibration accessories, charger/battery, user guide, carry case and all standard accessories required for proper functioning of the instrument. The warranty/guarantee of the instrument shall be as provided by the manufacturer, subject to a minimum period of one year. The rate shall include handling, transportation, demonstration of operation, initial calibration, and making the equipment ready for use at site, complete as per relevant IS codes (IS 13311 Part-1) and directions of the Engineer-in-Charge.

Providing and supplying Digital Concrete Test (Rebound) Hammer of Stanley / Proceq / AMTAST or any other reputed make as approved by Engineer-in-Charge, complete with calibration anvil, batteries/charger, carrying case, and all standard accessories, including transportation, leads, lifts, demonstration, calibration, and making the equipment ready for use at site, as per IS 13311 (Part-2) and directions of Engineer-in-Charge.