Improvement to Gobindapur Check Dam in Nandapur Block of Koraput District under Imp. to Check Dam

Dismantling RCC column, beams, slab, staircase, landing lintel including stacking the useful materials for reuse & removing the debries with all lead from work site with all leads,lifts labour T&P required for the work etc, complete as per directed by the Engineer-in-Charge.

Excavation loading, unloading and carriage by mechanical means in all kinds of soil including stoney earth , gravel and moorum etc, interspread with boulders up to ½ cum size with all lifts and delifts (including trimming of slopes bed to design sectionand) including dewatering if any & depositing the excavated materials away from the work site as per the specification and as directed by the Engineer in charge.

Excavation of foundation in all kinds of soil soil with all leads and lifts and delifts including dressing and leveling the bed to proper slope and level & making it fit for laying concrete & removing the debris clear of work site with all leads and lifts and delifts including dewatering from foundation if necessary etc complete in all respect as directed by the Engineer-In-Charge.

Filling in foundation and plinth with excavated earth with all leads & lifts including watering and ramming and compaction etc. complete in all respects as per specification and direction of the Engineer-in-charge.

Cement concrete in M15 grade using 20 mm down graded size crusher broken granite chips of approved quality quarried and free from weathered skin and foreign materials including mixing the materials by use of concrete mixtures and laying concrete in layers not exceeding 0.15 m in depth to required level curing vibrating with vibrators, finishing etc with all leads lifts and delifts complete in all respect to proper profile and leveling including dewatering if necessary and cost, conveyance and royalty and other taxes etc of materials including hire & running charges of the machineries complete as directed by the Engineer - in - Charge.

Providing and removing after casting rigid and smooth centering and shuttering for RCC and CC works with nominal reinforcement, cutting, bending, binding and dismantling them after casting including cost, conveyance, royalty and other taxes of all materials required for the work etc. complete as per direction of the Engineer-in-charge (For Col. & Beam)

Providing form work for concrete with F.I finish for upstream faces of Dam, spillway, glacis of barrage, unexposed surfaces of foundation, block joints etc, with steel shutters rigidly fixed and removal of forms and making good to the surfaces where necessary complete with all labour, materials and T&P complete as directed by the Engineer-in-charge.

Straightening, cutting, bending, binding, fitting and placing uncoated HYSD bar reinforcement and laying in position including cost of binding wire 18 to 20 gauge and fixing of reinforcement including lapping where necessary with all leads, lifts from bending yard to placement spot including cost ,conveyance & all taxes of reinforcement as directed by the Engineer-in-charge.

Rough stone dry packing in aprons and revetments to all heights with hard granite stones of 15 to 30cm size in all direction weighing 140 be/cft and above size of approved quality including filling the interstices with small stones with including cost, conveyance and royalty and other taxes of all materials required for the work etc, complete in all respects as directed by the Engineer in charge of the work.1/6th volume will be deducted towards voids)