Construction of Bridge over Local nallah on Dhandamunda to Benkera Road in the district of Bolangir under SBY for the year 2026-27 (Well foundation)

Earthwork in excavation in foundation in all kinds of soil within initial lead of 50m. and 1.5m initial lift including rough dressing and breaking clods to maximum 5cm to 7cm and laying in layers not exceeding 0.3 mtr in depth etc complete as per the direction of the Enngineer in Charge.

Supplying & fitting fixing in position steel cutting edge as per approved design & drawing weighing not less than 80kg. per meter including steel cladding using M.S.Angles/ rods, plates bolts & nuts, rivets complete wherever necessary including bending to size & shape drilling holes riveting welding bolting etc. complete in all respects confirming to relevant IRC codes & ISI specification including cost conveyance & all taxes of all materials, labour & T&P & all machineries etc. required for the work with all leads & lifts complete in position in all respects (cutting edge to be placed at the level of the bottom of well cap indicated in Drg. or 150 mm. above L.W.L. as specified in the Drg. or as per written order of the Engineer-in-Charge.

Labour of sinking single circular well caission/ crbwell of specified external diameter in all kinds of soil to lines levels & plumb by scooping out from inside the well & below the steining by chiselling, grabbing blasting (if required) etc, including cost of dredging chiseling, hammering, cutting with pick axes & crow bars, jack hammers or using any other modern devices for removing the rock i.e. methods of sinking inside rock strata, including cost of necessary tools & plants supply & work of pumps, dredgers & compressors, derrick, winches, cranes etc. bailings out of water & dredging removing all materials & obstacles from inside the wells by divers excluding pneumatic sinking with Air lock (however the use of exposives in removing & braking the rocks is probbited inside the well if steel, cladding has not been provided) & removing the materials & obstacles from inside the wells by divers & other mechanical devices inclusive of hire & running charges of all such machinery including materials & labour charges for providing kentledge loading if necessary & sinking to the required depth by loading with proper designed & preapproved weight & taking precautions adequately against tilting & shifting & dispiosal of the dredged materials away from the wells as per the direction of Engineer-in charge with all leads & lifts including hire & running charges of all machenaries cost of all labour with all leads lifts complete in all repects including all incidental charges like temporary sand filling, top pluging of well etc. for safety of the structure during execution as directed by the Enginer-in charge. (Payment will only be made for sinking of the well & other items required for the well sinking operation is only incidental & no payment will be made for such items) In all kinds of soil a) For 7.5m dia abutment wells

Sinking of R.C.C well sinking in soft rock (Non coring)/ Boulder/ Hard Soil )(wherein SPT>100) to lines levels & plum by scooping out from inside and below the steining including cost of hire and running charges of tools and plants and supplying & working of pumps bailing out of water and removal of all materials and obstacle from inside the well by divers etc. including precaution against shifting and lifting disposal of the soil with all leads and lift etc. complete as directed by the Engineer-in-charges. a) For 7.5m dia abutment wells

Sinking of R.C.C well sinking in fractured hard rock (wherein UCS>12.5 Mpa & RQD <50) to lines levels & plum by scooping out from inside and below the steining including cost of hire and running charges of tools and plants and supplying & working of pumps bailing out of water and removal of all materials and obstacle from inside the well by divers etc. including precaution against shifting and lifting disposal of the soil with all leads and lift etc. complete as directed by the Engineer-in-charges. a) For 7.5m dia abutment wells

Construction of R.C.C well sinking in soft rock to lines levels & plumb by scooping out from inside and below the steining including cost of hire and running charges of tools and plants and supplying & working of pumps bailing out of water and removal of all materials and obstacle from inside the well by divers etc. including precaution against shifting and lifting disposal of the soil with all leads and lift etc. complete as directed by the Engineer-in-charges. a) For 7.5m dia abutment wells

Construction of R.C.C well sinking in Hard rock to lines levels & plumb by scooping out from inside and below the steining including cost of hire and running charges of tools and plants and supplying & working of pumps bailing out of water and removal of all materials and obstacle from inside the well by divers etc. including precaution against shifting and lifting disposal of the soil with all leads and lift etc. complete as directed by the Engineer-in-charges. a) For 7.5m dia abutment wells

Earth work excavation in foundation in Hard and compacted sheet rock within all leads and lifts including shoring, shuttering, propping bullahs, piling, dewatering from the foundation, supply & working of pumps stacking the excavated material away from the work in site..

Cement concrete of M-150 having maximum compressive strength of 150 kg./cm2 ( test to be conducted) on 150 mm. cubes tested at 28 days including curing (tests conducted in accordance with IS-456 & IS-516) & conforming to clause-302 of IRC 21/1987 using clean crusher broken hard granite coarse aggregate of 40 mm. size down grade of approved quality to be protested in the laboratory) obtained from approved quarry the proportion mix, grading conforming to relevant ISI/IRC codes pre-approved including arranging of reinforcement as per approved drawing including hoisting, lowering concrete in layers not exceeding 150 mm. thick each compacting with vbrator watering & curing for 28 days centering shuttering & finishing the exposed surface smooth providing grooves & beads where necessary including cost, conveyance royality & taxes of all labour machineries etc. required for the work complete in all respects including dismantling the centering & shuttering as per specification & direction of Engineer-in-Charge. Plain Cement Concrete M 15 Grade using 20mm down graded chips in Foundation and Plinth ( a)Bottom Plugging

Cement concrete of M-150 having maximum compressive strength of 150 kg./cm2 ( test to be conducted) on 150 mm. cubes tested at 28 days including curing (tests conducted in accordance with IS-456 & IS-516) & conforming to clause-302 of IRC 21/1987 using clean crusher broken hard granite coarse aggregate of 40 mm. size down grade of approved quality to be protested in the laboratory) obtained from approved quarry the proportion mix, grading conforming to relevant ISI/IRC codes pre-approved including arranging of reinforcement as per approved drawing including hoisting, lowering concrete in layers not exceeding 150 mm. thick each compacting with vbrator watering & curing for 28 days centering shuttering & finishing the exposed surface smooth providing grooves & beads where necessary including cost, conveyance royality & taxes of all labour machineries etc. required for the work complete in all respects including dismantling the centering & shuttering as per specification & direction of Engineer-in-Charge. Plain Cement Concrete M 15 Grade using 20mm down graded chips in Foundation and Plinth (b)Top Plugging