Construction of RCC Bridge at Nongkhlaw-Byrki of Span 75.16m on road from T06-Nongkhlaw Byrki to Umdohlun (MG/07/III/05/01B2)

Amount

Bridge Works: Foundation

Excavation for Structures Earthwork in excavation for structures as per drawing and technical specifications Clause 305.1 including setting out, construction of shoring and bracing, removal of stumps and other deleterious material and disposal upto a lead of 50 m, dressing of sides and bottom and backfilling in trenches with excavated suitable material. By Manual Means I) Ordinary Soil i)Upto 3 m depth

I) Ordinary Soil i) 3 m to 6 m depth

I) Ordinary rock not required blasting i) Upto 3 m depth

Filling annular space around footing in rock as per technical specification Clause 1203.4.3. i) P.C.C grade M15 Nominal mix 1:2.5: 5 Pier

Providing concrete for plain/reinforced concrete in open foundations complete as per drawings and technical specifications Clause 802, 803, 1202 & 1203 II.)P.C.C grade M 15 (i)Nominal mix (1:2.5:5) a)Abutment Base

b) Pier Base

Providing concrete for plain/reinforced concrete in open foundations complete as per drawings and technical specifications Clause 802, 803, 1202 & 1203 V)R.C.C. grade M 25 a) In Abutments

b)In Piers

Supplying, fitting and placing HYSD bar reinforcement in foundation complete as per drawings and technical specifications Clauses 1000 and 1202 a)In Abutments

b)In Piers

Bridge Works: Sub-Structure

Plain/reinforced cement concrete in substructure complete as per drawings and technical specification Clauses 802, 804, 805, 806, 807, 1202 and 1204 IV)R.C.C. grade M 25 a)In Abutments

b)In Piers

Supplying, fitting and placing HYSD bar reinforcement (Fe 415) in substructure complete as per drawings and technical specification Clauses 1002, 1005, 1010 & 1202 a)In Abutments

b)In Piers

Providing weep holes in brick masonry/stone masonry, plain/reinforced concrete abutment, wing wall, return wall with 100 mm dia AC pipe extending through the full width of the structures with slope of 1(V):20(H) towards drawing face complete as per drawing and technical specification Clauses 614, 709, 1204.3.7

Backfilling behind abutment, wing wall and return wall complete as per drawings & technical specification Clause 1204.3.8 II)Sandy material

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 Clause 1204.3.8 Behind Abutment

Supplying, fitting and fixing in position true to line and level elastomeric bearing conforming to IRC:83 (Part-II) Section IX complete, including all accessories as per drawings and technical specification Clause 1207.1 On Abutment On Piers

Bridge Works: Superstructure

Providing and laying reinforced cement concrete in superstructure as per drawing and technical specifications Clauses 800, 1205.4 and 1205.5 III)R.C.C. Grade M 30

Supplying, fitting, and placing HYSD bar reinforcement in superstructure complete as per drawing and technical specifications Clauses 1002, 1010 and 1202 i)Deck Slab

ii)Longitudinal Girders

iii)Cross Girders

iv)Pedestal

v)Seismic Arrestors

Providing and laying cement concrete wearing course M 30 grade including reinforcement complete as per drawing and technical specifications Clauses 800 and 1206.3

Drainage spouts complete as per drawing and technical specifications Clause 1209

P.C.C. M 15 ordinary grade (1:2.5:5) levelling course below approach slab complete as per drawing and technical specifications Clauses 800 and 1211 i) Nominal Mix (1:2.5:5)

Reinforced Cement Concrete M 25 grade approach slab including reinforcement and formwork complete as per drawing and technical specifications Clauses 800 and 1211

Providing and laying of an elastomeric slab seal expansion joint complete as per approved drawing and approved specifications to be installed by manufacturer/supplier or their authorised representative ensuring compliance to the manufacturer’s instructions for installation and as per technical specifications Clause 1207.2.5

Retaining Wall

Earthwork in excavation for structures Earthwork in excavation for structures as per drawing and technical specifications Clause 305.1 including setting out, construction of shoring and bracing, removal of stumps and other deleterious material and disposal upto a lead of 50 m, dressing of sides and bottom and backfilling in trenches with excavated suitable material. I)Ordinary soil i)Upto 3 m depth

I)Ordinary soil i)3 m to 6 m depth

II)Ordinary rock (not requiring blasting) Upto 3 m depth

ii)Plain cement concrete M 10 grade I)P.C.C grade M 10 i)Nominal mix 1:3:6 In levelling Course

Stone masonry in cement mortar 1:5 Stone masonry in cement mortar for substructure complete as per drawing & technical specification Clauses 702, 704, 1202 and 1204 III)Random rubble masonry iii)In cement mortar (1:5) Main Wall

Guard Walls

Pointing with cement mortar 1:3 Pointing with cement mortar (1:3) on brickwork as per drawing and technical specification Clauses 613.3 and 1204 Along Length of Gwalls & End Faces

Providing P.C.C. M 20 architectural coping on top of retaining wall/breast wall

Filter material behind retaining wall / breast wall as per Specification 1204.3.8 in a width of 600 mm 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 Clause 1204.3.8

Back filling behind retaining wall/breast wall Backfilling behind abutment, wing wall and return wall complete as per drawings & technical specification Clause 1204.3.8 II)Sandy Material

Providing weep holes in brick masonry/stone masonry, plain/reinforced concrete abutment, wing wall, return wall with 100 mm dia AC pipe extending through the full width of the structures with slope of 1(V):20(H) towards drawing face complete as per drawing and technical specification Clauses 614, 709, 1204.3.7

Approach Road on Both Banks

Granular Sub-base with Well Graded Material (Table 400.1) A) By Mix Place Method Construction of granular sub-base with locally available graded material, spreading in uniform layers with motor grader on prepared surface, watering to OMC and compacting with smooth wheel roller to achieve the desired density, complete as per Technical Specification/ direction of EE. (iii)For Grading III Material

Water Bound Macadam Sub-base/base Providing, laying, spreading and compacting stone aggregates of specific sizes to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with smooth wheel roller 80-100 kN in stages to proper grade and camber, applying and brooming, stone screening to fill-up the interstices of coarse aggregate, watering and compacting to the required density Grading III as per Technical Specification Clause 405. 3)WBM Grading III A)By Manual Means

Prime Coat (iii)High porosity Providing and applying primer coat with Bitumen emulsion (SS-1) on prepared surface of granular base including cleaning of road surface and spraying primer at the rate of 1.2-1.5 kg/sqm using mechanical means as per Technical Specification Clause 502.

Tack Coat (iv)Providing and applying tack coat with Bitumen emulsion (RS-1) using emulsion pressure distributor at the rate of 0.30 to 0.35 kg per sqm on the prepared non-bituminous surfaces (cement concrete pavement) cleaned with Hydraulic broom as per Technical Specification Clause 503.

Pre-mix Carpet 20 mm thick Open Graded Premix Carpet using Bitumen Emulsion as per Technical Specification Clause 508.2

Seal Coat Providing and laying seal coat sealing the voids in a bituminous surface laid to the specified levels, using cold emulsion grade and cross fall as per Technical Specification Clause 510

Good and Service Tax (18%)

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