Construction of 2 Nos RCC bridge over river Diggin (length 60 mtr) at ch.11.660 Km and over river Bichom (length 60 mtr) at ch.35.500 Km on Nafra-Salari road in the state of Arunachal Pradesh under Economic Importance.

Amount

Earth Work in New formation

Earth work in excavation of foundation for structure complete including all leads and lifts as per drawing and technical specification clause 304 .

a) In all type of soil

b) In ordinary rock

Providing filter media behind abutments, wing walls & return walls with well packed material to specified thickness with smaller size towards the soil and bigger size towards the wall complete with all leas and lifts as per drawings and Technical Specifications Clause 2504

Providing and laying plain cement concrete garade M15 in leveling course under the bridge structure, approach slab etc. including centering and shuttering all complete but excluding reinforcement as per drawings and Technical Specification Sections 1500, 1700 and 2100.

Providing and laying Reinforced cement concrete garade M35 in Foundation complete excluding Reinforcement as per Drawing and Technical Specification Sections 1500, 1700 and 2100.

Reinforced Cement Concrete for substructure complete excluding reinforcement as per Drawings and Technical Specification Sections 1500, 1700 and 2200.

i) RCC M35

ii) RCC M45

Reinforced Cement Concrete in superstructure complete excluding reinforcement as per Drawings and Technical Specification Sections 1500, 1700 and 2300.

i) RCC M35 Deck Slab and Footpath

Supply and fabrication of Mild Steel as per IS 2062 including drilling, welding, riveting, grinding supply of bolts, nuts, washers, fixtures etc. at site.

Assembling, erection of fabricated steel structure to proper line, level and camber as per approved drawings and technical specifications section 1900 complete including transportation and handling, painting all exposed surfaces of steel work after erection with one coat of red lead primer paint to IS 102 and two coats of paint includin gall labour conumable other material machinery tools and tackles complete as per specification and directed by engineers including furnishing of detailed erection scheme and getting the same approved from competent authority

Providing & fixing in position thermomechanically treated(TMT) Fe 500 grade reinforcement bars in foundations, substructures, superstructure etc. complete as per drawings and Technical Specifications Section 1600 or as directed by Engineer

Providing and laying in position 65mm thick wearing course consisting of 40mm thick Bituminous Concrete over laid with 25mm thick Bitumen Mastic as per drawings and Technical Specifications Section 500.

Providing and fixing drainage spouts as per drawings and Technical Specifications Clause 2705.

Supplying and fixing of bearings complete as per drawings and Technical Specifications Section 2000.

POT cum PTFE Bearing

a) Free Sliding Pot Cum PTEE

b) Guided Sliding Pot Cum PTFE

c) Pin Bearing

Reinforced Cement Concrete railing complete excluding reinforcement as per drawings and Technical Specifications Sections 1500, 1600, 1700, 2200 and Clause 2703 and 809.

Reinforced Cement Concrete grade M30 in approach slabs including reinforcement complete as per drawings and Technical Specifications Sections 1500, 1600, 1700 and Clause 2704.

Supplying and fixing of strip seal expansion joints complete as per drawings and Technical Specifications Section 2600.

Providing and laying filter material underneath stone boulder pitching on slopes complete as per drawings and Technical Specifications Section 2500.

Providing and laying stone boulder pitching on slops complete as per drawings and Technical Specifications Section 2500.

Providing weep holes in aboutments, wing walls, retaining walls, return walls etc. complete as per drawings and Technical Specifications Clause 2706.

Carry out confirmatory bores upto required depths at each foundation location of bridge complete in all respects including testing as per Technical Specifications Section of the results as per IRC: 78-1981.

Depth 0 to 10.00 m

Depth 10 to 20.00 m

Paining of Bridge no.and span arrangement as per IRC 7: 1971 drawings and direction of the Engineer

Providing and painting of flood gauge on substructure in full height and 500 mm width as per the directions of the Engineer.