Restoration of rain damages to WSS Diet in GP Tandi (SDF/2026/12) and WSS Mooling in GP Mooling, Tehsil Keylong, District Lahaul Spiti

Cutting in earth work in all kinds of soil and disposal of excavated earth upto a lead of 20 metres complete in all respects as per direction of the Engineer-in-charge. (Pick work 100%)

Excavation in foundations, trenches etc. in earth work, lift upto 1.50 metres stacking the excavated soil not more than 3 metres clear from the edge of excavation and then returning the stacked soil in 15cm layers, when required in to plinths sides of foundations etc., consolidating each deposited layer by ramming and watering and then disposing of all surplus excavated earth as directed within a lead of 20 metres complete in all respects as per direction of the Engineer-in-charge. (Pick work 90% & Jumper work 10%)

Providing and laying in position cement concrete 1:3:6 (1 Cement : 3 coarse sand: 6 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 Engineer-in- charge.

Providing and laying in position of reinforced cement concrete 1:1.5:3 (1 cement : 1.5 coarse sand : 3 graded stone aggregate 20 mm nominal size) excluding the cost of centering, shuttering, finishing and reinforcement - All work up to plinth level in all leads and lifts and to the entire satisfaction of Engineer-in- charge.

Centering and shuttering including strutting, propping etc. and removal of form for all heights : Foundations, footings, bases of columns, etc. for mass concrete or as per the direction of the Engineer-In-Charge.

Providing and laying steel reinforcement (Tor Steel) for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto floor two level in all leads and lifts and to the entire satisfaction of Engineer-in- charge.

Supplying and filling in plinth with sand under floors, including watering, ramming, consolidating and dressing complete or as per the direction of the Engineer-In-Charge.

Providing and fixing an 8 KL Zinc Aluminium Steel Drinking Water Storage Tank (2.50 m dia. × 1.65 m height or as approved by the Engineer-in-Charge) of rising conical roof type with HDG roof trusses and lockable access hatch, complete with all fittings, including 1 No. heavy-duty GI cage ladder, 1 No. nylon rope, aluminium step access ladder to the hatch on the roof, outlet and overflow nozzles, level indicator (material as provided by STAC), and 10-year warranty. The work also includes fixing of three laps under the roof; providing and fixing 65 mm diameter inlet, outlet, overflow, and scour pipes as per the approved drawing or as directed by the Engineer-in-Charge, in all leads and lifts; and all other required accessories to complete the work in all respects to the entire satisfaction of the Engineer-in-Charge. ROOF SPECIFICATION:- Roof Type: Self-Supported Dome Type, Bulk Density: 800 kg/m³, Seismic Zone: Zone IV Roof Angle: 45 Degree, Wind Speed: 180 km/hr, Roof Structure: Hot-Dipped Galvanized. TECHNICAL SPECIFICATIONS OF SHEET:- Wall Sheet Yield Strength: 300 MPa, Wall Sheet Tensile Strength: 340 MPa, Elongation: 18% Sheet Corrugation Space: 75 mm, Depth: 18 mm, Thickness: 0.8 mm each corrugated sheet Make of Sheet: TATA BlueScope, Sheet Galvanize Coating: Zinc Alum ZA 150, MOC of Sheet: Zincalume TECHNICAL SPECIFICATION OF LINER:- Weight/Sqm. (CSM): 760 gsm, Anti-Algae Stabilized: Yes, Both Sides PVC Food Grade: Yes, Thickness: 0.8 mm, Waterproofness: 200 PSI, Standard Colour: Grey, Base Fabric: High Tenacity Polyester Filament Yarn, Temperature: -20 to +55 Degree Celsius, pH Range: 3 to 13, Tested at 2 kg/cm² for any leaks.