Repairs to Damaged approaches of Major Bridge at Km 35.150 near Koutha village on NH161A in Bidar District

Amount

Road Portion: Dismantling of Structures: Dismantling of existing structures like culverts, bridges, retaining walls and other structure comprising of masonry, cement concrete, wood work, steel work, including T&P and scaffolding wherever necessary, sorting the dismantled material, disposal of unserviceable material and stacking the serviceable material with all lifts and lead, including all labour, hire charges of all machineries etc., Complete. As directed by Engineer incharge of the work. By mechanical means M15 & M20 etc., Complete. As directed by Engineer incharge of the work. Plain/Reinforced Cement Concrete (PCC)

Excavation in Soil: Earthwork excavation for roadwork in soil by mechanical with hydraulic excavator of 0.9 cum bucket capacity including cutting and loading in tippers, trimming bottom and side slopes, in accordance with requirements of lines, grades and cross sections, and transporting to the embankment location within all lifts and lead including all labour, hire charges of all machineries etc., Complete. As directed by Engineer incharge of the work.

Construction of Embankment with Material Obtained from Borrow Items: Construction of embankment with approved material obtained from borrow pits in layers not exceeding 250 mm loose thickness, spreading, breaking clods, removal of roots and other organic material to the required line grade and cross section including watering consolidation by vibrating road roller with desired field density not less than 95% of maximum dry density including all leads, all lifts, loading, unloading, all labour, hire charges of all machineries etc., complete as per table 300-2. As directed by Engineer incharge of the work.

Construction of Subgrade and Earthern Shoulder: Construction of Subgrade and Earthen Shoulders with approved material obtained from borrow pits with all lifts & leads, transporting to site, spreading, grading to required slope and compacted to meet requirement of table No. 300-2 in layers not exceeding 250mm thick and compacting by mechanical means after adding water to its OMC, so as to achieve 97% Compaction of maximum dry density and finish the surface to the required camber, grade and cross section etc., spreading by dozer, grading by mortor grader, consolidation by vibratory and roller including all leads, all lifts, loading, unloading, all labour, hire charges of all machinery etc., complete. As directed by Engineer incharge of the work.

Granular Sub Base: Construction of grannler Sub grade by providing laying and compecting of close graded material, spreading and compacting in uniform layers with motor grader on prepared surface using by mix in place method with rotrator at OMC and compacting with vibratory roller 8-10 T to achieve desired density of 98% including protection of edges of GSB layer cost of all material, labour, hire charges of machinary lighting, grading, barricading, maintenance of diversion road, leading & unloading, all lead & lifts etc., complete Gr-V. As directed by Engineer incharge of the work.

Wet Mix Macadam: Plant Mix Method Construction of Wet Mix Macadum by providing, laying, spreading and compacting graded stone aggregates as per Table 400-12&13 , mixing in a wet mix plant of 75 tonne capacity at OMC, carried of mixed material to work site in tipper to paver laid over a previously prepared surface using Motor Grader to the required grade,level and alignment, compacting with vibratory roller 8-10 tonne to achieve the desired density of 98% including protection of edges of WMM layer, costs of all material, labour, hire charges of machinery, lighting, gaurding, barricading, maintance of diversion road, loading and unloading, all lead and lift etc., complete with lead of mixed material (Compacted thickness). etc., complete. As directed by Engineer incharge of the work.

Prime coat: Providing and applying primer coat with Slow Setting bitumen (SS-1) emulsion compying with IS 8887 of approved quality and make on prepared surface of granular Base such as WBM, WMM including cleaning of road surface by mechanical broom and dusting by air compressior and spraying using bitumen pressure distributor, uniformly at the rate as per Table 500-1, including cost of all materials, labour, hire charges of machinery, loading, unloading etc., complete, including lead for emulsion. On WMM/WBM surface @ 0.80Kg / Sqm, etc., complete. As directed by Engineer incharge of the work.

Tack Coat: Providing and applying Tack coat as per table 500-5 on a prepared surface using Rapid Setting Bituminous (RS-1) emulsion complying with IS 8887 of approved quaIity and make including cleaning of road surface by mechanical broom & dusting by Air compressior, and spraying by bitumen pressure distributor, including cost of all material, labour, hire charges of machinery, loading and unloading stacking, etc complete, including lead for emulsion. Using Rapid Setting Bituminous Emulsion RS-1 On Granular surfaces created with primer at 2.5Kg/10 Sqm etc., complete. As directed by Engineer incharge of the work.

Dense Graded Bituminous Macadam: Providing and laying Dense Graded Bituminous Macadam using crushed aggregates as per table 500-8,9,10 of specified graded aggregates and filler (Cement) @ 2% by weight of aggregates, premixed with bituminous binder in 30/40 (VG-40) batch/mix plant, loading of aggregates with F.E loader, transported to site in tipper to paver, laid over previously prepared surface with paver finisher to the required grade,level, alignment, rolling with smooth wheeled rollers 8-10 tonnes, vibratory roller 8 tonnes, smooth wheeled tandem roller 6-8 tonnes as per clause 501.6 and 501.7 to achieve the desired compaction, including cost of all materials, labour, hire charges of machinery, lead, lifts, loading, unloading, stacking, transporting etc., complete. except lead for bitumen, with a lead of mixed material, including cost of premier/ tack coat. (Compacted thickness). Using 100-120 TPH batch mix plant and Paver Finisher Hydrostatic with sensor control.Using Cement as Filler Material @2% weight of aggregates Grading 2: 50-75 mm compacted thickness(26.5 mm nominal size) @ 4.5% bitumen etc., complete. As directed by Engineer incharge of the work.

Bituminous Concrete: Providing and laying Bituminous Concrete using crushed stone aggregates as per table 500-16,17 of specified graded aggregates and filler (Stone dust/Cement) @ 2% by weight of aggregates, premixed with bituminous binder in batch/ hot mix plant, loading of aggregates with F.E loader, transported to site in tipper to paver, laid over previously prepared surface with paver finisher to the required grade,level, alignment, rolling with smooth wheeled rollers 8-10 tonnes, vibratory roller 8 tonnes, smooth wheeled tandem roller 6-8 tonnes as per clause 501.6 and 501.7 to achieve the desired compaction, including cost of all materials, labour, hire charges of machinery, lead, lifts, loading, unloading, stacking, transporting etc., complete. including lead for bitumen, with a lead of mixed material, excluding cost of premier/ tack coat. (Compacted thickness). Using 100-120 TPH Batch Mix plant and Paver finisher hydrostatic with sensor control. Using Cement as Filler Material @2% weight of aggregates. Grading 2 with 5.40% bitumen (30-40mm compacted thickness) (13.20mm nominal size), 30/40Grade ( VG-40) Bitumen. etc., complete. As directed by Engineer incharge of the work.

Road Marking with Hot Applied Thermoplastic Compound with Reflectorising Glass Beads on bituminous Surface (Providing the road surface using approved quality Thermo Plastic Material homogeniously composed of aggregates, pigments, resigns and glass reflectorising beeds) conforming to clause 803.4.2.2 applied hot either by screeding or extension process at the rate of 5Kg/Sqmeter of painted surface using suitable machine capable of controlled preparation and laying with surface applicator of glass beads at 250 gms/sqmtr allowing cooling to ambient pavement temparature, that shall produce an adherent pavement making of minimum thickness of 2.5mm including barricading for traffic diversion as per IRC: 35 cleaning the surface of dirt, dust and other foreign matter, demarcation at site, barricading for traffic diversion, traffic control including cost of all material, labour, loading, unloading, lead, lift, transporting etc., complete. As directed by Engineer incharge of the work.

Road Stud with Lense Reflector Providing and fixing of road stud 100x 100 mm, die cast in aluminium, resistant to corrosive effect of salt and grit , fItted with lense reflectors, installed in concrete or asphaltic surface by drilling hole 30 mm upto a depth of 60 mm and bedded in a suitable bituminous grout or epoxy mortar, all as per BS 873 part 4:1973 including cost of all materials, labour, loading, unloading, lead, lift, transporting etc., complete. As directed by Engineer incharge of the work.

Metal Beam Crash Barrier Type - A, "W" : Metal Beam Crash Barrier (Providing and erecting a "W" metal beam crash barrier comprising of 3 mm thick corrugated sheet metal beam rail, 70 cm above road/ground level, fixed on ISMC series channel vertical post, 150 x 75 x 5 mm spaced 2 m centre to centre, 1.8 m high, 1.1 m below ground/road level, all steel parts and fItments to be galvanised by hot dip process, all fItemtings to conform to IS:1367 and IS:1364, metal beam rail to be fixed on the vertical post with a spacer of channel section 150 x 75 x 5 mm, 330 mm complete including cost of all materials, labour, loading, unloading, lead, lift, transporting etc., complete. As directed by Engineer incharge of the work.

Cast in Situ Cement Concrete M20 Kerb Providing and Construction of cement concrete kerb with top and bottom width 115 and 165 mm respectively, 250 mm high in M 20 grade PCC on M-10 grade foundation 150 mm thick, foundation using 20mm Granite/Basalt J Trap metal & clean sieved approved fine aggregates having 50 mm projection beyond kerb stone, kerb stone laid with kerb laying machine, foundation concrete laid manually, all complete as per clause 408 as per drawings, formwork, curing, including cost of all materials, labour, hire charges of machinery, loading, unloading, lead and lift, transporting etc., complete. As directed by Engineer incharge of the work. Using Concrete batching and mixing plant.

Bridge Portion Excavation for Structures: Earth work excavation of foundation of structures as per drawing and technical specification, including setting out, construction of shoring and bracing, removal of stumps and other deleterious matter, dressing of sides and bottom, backfilling the excavation earth to the extent required and utilising the remaining earth locally for road work including all lead, lift, loading & unloading- labour, hire charges of all machineries etc., Complete.Ordinary soil, Mechanical means Using Hydraulic excavator (Depth upto 3m) As directed by Engineer incharge of the work.

Gravel filling below PCC: Trenches as per drawing in layers not exceeding 20cms in depth, compacting deposited material by plate compactor/power rammer after duly watering to achieve the desired degree of compaction, including cost of all materials, labour, hire charges of all machineries, transporting, lead, lift, loading, unloading etc complete., As directed by Engineer incharge of the work.

Providing and laying Plain/Reinforced cement concret M15(1:2:4) in open foundation/Sub structure using Granite/ trap/ basalt aggregates of 40mm and downsize and clean seived approved fine aggregate including mixing mechanically in concrete mixer in concrete mixer laid in layers not exceeding 15cms thick layers, as per drawing including cost of all materials, formwork, centring, vibrating, compacting, hire charges of machinery, lead, lift, loading, unloading, transporting, stacking, curing, finishing the exposed faces etc.,complete, excluding cost of steel and fabrication charges.As directed by Engineer incharge of the work.

Providing and laying Reinforced cement concret M-25 (1:1:2) for solid slab super structure using Granite/trap /basalt aggregates of 20mm and downsize and clean seived approved fine aggregate including mixing mechanically in concrete mixer in concrete mixer laid in layers not exceeding 15cms thick layers, as per drawing including cost of all materials, formwork, centring, vibrating, compacting, hire charges of machinery, lead, lift, loading, unloading, transporting, stacking, curing, finishing the exposed faces etc., complete. (excluding cost of steel and fabrication charges) for RCC Drain Foundation/Sub structure / Super Structure. As directed by Engineer incharge of the work. Using Batching plant, transit mixcer & concrete pump.

Providing TMT steel bar reinforcement confrming to IS 1786, Fe500 Grade designation in Foundation/Sub Structure including straightening bars, cutting, bending, hooking, binding with approved quality binding wire, after placing in position, tyeing, lapping and / or welding where ever required and anchoring to the adjoining members where ever necessary as per drawing (laps, hooks and wastages shall not be measured and paid) including cost of all materials, bar bending charges, labour, lifts etc., complete.As directed by Engineer incharge of the work.

Providing weep holes in Brick masonry/Plain/Reinforced concrete abutment, wing wall/return wall with 100 mm dia AC pipe,fixing in position in C.M. 1:3 with collar and clamp extending through the full width of the structure with slope of 1V :20H towards drawing foce as per drawing includes cost of all material, labour, transporting, lead, lift, loading, unloading, etc., complete.As directed by Engineer incharge of the work.

Providing and laying Filter material as per table 300-3 underneath pitching in slopes complete as per drawing complete as per drawing including cost of all materials, labour, loading, unloading,lead, lift, transporting etc., complete.As directed by Engineer incharge of the work.

Pitching On Slopes: Providing and laying Pitching on slopes laid over prepared filter media including boulder apron laid dry in front of toe of embankment complete as per drawing including cost of all materials, labour, loading, unloading, lead and lift, transporting etc., complete Stone/ Boulder.As directed by Engineer incharge of the work.

Earth fill in sloping embankment: Construction of Embankment with approved materials and compacted to meet requirement of table 300-2 s in layers not exceeding 250mm loose thickness, spreading, breaking clods, removal of roots and other organic material to the required line Grade and cross section including watering consolidation by vibrating road roller with desired field densItemy not lessthen 95% of maximum dry densItemy with a lead of 100mtrs. all lifts including loading, unloading, all labour, hire charges of all machineries etc., complete. As directed by Engineer incharge of the work.

Providing Plain cement concrete M15 ordinary grade Levelling course below Approach slab using 40mm and downsize Granite/trap/basalt coarse aggregates and clean seived approved fine aggregate mechanically mixed by concrete mixer, laying, vibrating, curing, cost of all materials, labour, loading, unloading, lead, lift, hire charges of machinery etc., complete. As directed by Engineer incharge of the work.

Providing and laying Reinforced Cement Concrete Approach Slab, using M30 grade as per drawing using 20mm and downsize Granite/trap/basalt coarse aggregates and clean seived approved fine aggregate mechanically mixed by batch mix plant, fabrication of reinforcement including cost of all materials, labour, steel, fabrication charge, formwork, curing, loading , unloading, lead, lift, etc., complete As directed by Engineer incharge of the work. Using Batch mix plant.

Chute Drain Excavation in Soil. Earthwork excavation for roadwork in soil by mechanical with hydraulic excavator of 0.9 cum bucket capacity including cutting and loading in tippers, trimming bottom and side slopes, in accordance with requirements of lines, grades and cross sections, and transporting to the embankment location within all lifts and lead. including all labour, hire charges of all machineries etc., Complete.As directed by Engineer incharge of the work.

Providing and laying Plain/Reinforced cement concret M15(1:2:4) in open foundation/Sub structure using Granite/ trap/ basalt aggregates of 40mm and downsize and clean seived approved fine aggregate including mixing mechanically in concrete mixer in concrete mixer laid in layers not exceeding 15cms thick layers, as per drawing including cost of all materials, formwork, centring, vibrating, compacting, hire charges of machinery, lead, lift, loading, unloading, transporting, stacking, curing, finishing the exposed faces etc.,complete excluding cost of steel and fabrication charges. As directed by Engineer incharge of the work.

Jagdish Khuba