Daimukhia Dighaltarang Road

Amount

Dismantling- Labour for dismantling all members of the timber bridge (except piles) and stacking them at suitable places as directed (All members will be under custody of the contractor till taken over by the Department )

Labour taking out old piles of the bridge and stacking them at suitable places as directed.

Construction of cold weather Bamboo bridge overall width of 3.70m and clear roadway 3m with jungle wood post 20cm to 25cm dia 5nos in each rows and roes being 2.1m apart except for the navigable span which should be 3m .Post to be driven atlest 180cm or more below ground level including providing 20cm to 25cm center to center and placed over 20cm dia ,jungle wood dham ,15cm dia jungle wood bracing collar fixed by bolts and nuts ,straps etc.mature bholuka bamboo cross groth all closely packed and tied 75cm wide track way made from 38mm thick 1st class local plank fixed on 75mmx100mm first class local wood battens 120cm apart and 3 lines of jati bamboo horizantal railing fixed in bholuka bamboo post placed at 210cm apart and white wased including all necessary nuts and bolts ,coir ropes,struts,nails etc. complete with a layer of brushwood to exposed portion out -side trackway with earth topping complete as per direction of the Department.

Excavation for Structures: Earth work in 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 and backfilling with approved material. i. Ordinary soil (A)Mannual Means , upto 3m depth (Without dewatering)

Bored cast-in-situ M35 grade R.C.C. pile excluding reinforcement complete as per drawing and technical specification and removal of excavated earth with all lifts and lead upto 1000m. (Pile diameter-1000mm) (N) without plasticiser.

Pile load test on single vertical pile in accordance with I.S. 2911 (Part IV)as per technical specifications of MORTH section no 1100. a) Initial and routine load test

Levelling course for Pile cap Providing and lying of PCC M - 15 levelling course below the pile cap. as per drawing and technical specifications (N) without plasticiser 0f MORTH section

Cement concrete for reinforcement concrete in pile cap complete as per drawing and technical specifications of MORTH section no. 1100,1500 & 1700 A. . RCC grade M - 20 (i ) Using concrete mixer

Supplying, fitting and placing uncoated TMT bar reinforcement in foundation complete as per drawing and technical specifications 0f MORTH section no. 1100,1500 & 1700 (b) Wth TATA make TMT rebar

Plain/Reinforced cement concrete in sub-structure complete as per drawing and technical specifications and steel shuttering formwork of MoRTH section no 1500,1700 & 2200 A. RCC Grade M30 Height upto 5m : Case I Using concrete Mixer

Supplying, fitting and placing bar reinforcement in substructure complete as per drawing and technical specifications of MORTH section no 1600, 2200. b) With TATA make TMT rebar

Supplying, fitting and fixing in position true to line and level elastomeric bearing conforming to IRC: 83 (Part-II) section IX and clause 2005 of MoRTH specifications complete including all accessories as per drawing and Technical Specifications.

Superstructure:-'Furnishing and Placing Reinforced/Prestressed cement concrete in super-structure as per drawing and Technical Specification' including steel shuttering formwork. Without plasticiser,A.RCC Grade M25 , T-Beam & Slab superstructure Case-II,(b) Height from 5m to 10m

Supplying, fitting and placing : Supplying, fitting and placing TMT bar reinforcement in superstructure including splicing complete as per drawing and technical specifications 1600 of MORTH Specification of Roads and Bridge work for superstructure works. b) With TATA make TMT rebar

Providing and laying Cement concrete wearing coat M-30 grade including reinforcement complete as per drawing and Technical Specifications 2702 of MORTH specification of roads and bridge work.

Construction of precast RCC railing of M30 Grade aggregate size not exceeding 12mm, in true to line and grade, tolurence of vertical RCC post not to exceed 1 in 500, centre to centre spacing between vertical post not to exceed 2000 mm, leaving adequate space between vertical post for expansion, complete as per approved drawings and technical specifications

Providing and laying of a strip seal expansion joint catering to maximum horizontal movement upto 70 mm,complete as per approved drawings and standard specifications to be installed by the manufacturer / supllier or their authorised representative ensuring compliance to trhe manufacturer's instruction for instalation.) .

Drainage Spouts complete as per drawing and Technical specification clause 2705 of MORTH specification of roads and bridge work for superstructure works.

Providing and laying Pitching on slopes laid over prepared filter media including boulder apron laid in dry in front of toe of embankment complete as per drawing and Technical specification.

Providing and laying Filter material underneath pitching in slopes complete as per drawing and Technical specification.

Providing and laying boulder apron on river bed for protection against scour with stone boulders weighing not less than 40kg each complete as per drawing and Technical specification .

Clearing and grabbing road land including uprooting rank vegetation, grass, bushes, shrubs, saplings and trees girth up to 300 mm, removal of stumps disposal of unserviceable materials and stacking of serviceable material to be used or auctioned up to a lead of 1000 metres including removal and disposal of top organic and not exceeding 150 mm in thickness.)as per technical specification clause no. 201 By Manual Means: In area of light jungle

Construction of embankment with Material Obtained from Borrow Pits(Construction of Embankment with approved materials obtained from borrow pits with all lifts and leads upto 1.5m, transporting to site, spreading, grading to required slope and compacting to meet requirement of table 300.1 and 300.2 with a lead upto1000m. as per technical specification Clause 301.5

Construction of Sub grade and Earthen Shoulders (Construction of Sub grade and Earthen Shoulders with approved materials obtained from borrow pits, with all lifts and leads, transporting to site, spreading, grading to required slope and compacted to meet requirement of table 300.2 with lead upto 1000m as per technical specification Clause 303.1

Granular Sub-Base with Coarse Graded Material ( Table:- 400- 2):( Construction of granular sub-base by providing coarse graded material, spreading in uniform layers with motor grader on prepared surface, mixing by mix in place method with rotavator at OMC, and compacting with smooth wheel roller to achieve the desired density, complete as per technical specification 401 (A) By Mix in placeMethod (I) for grading- II Material

Water Bound Macadam Grading 2 Using stone screening Type-A. 13.2mmfor Gr.2 (Providing, laying, spreading and compacting stone aggregates of specific sizes to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with vibratory roller 80-100 KN in stages to proper grade and camber, applying and brooming stone screening/ binding materials to fill up the interstices of coarse aggregate, watering and compacting to the required density.grading 2 as per technical specification clause no. 405. (B) By Manual Means

Water Bound Macadam Grading 3 Using stone screening Type-A.13.2mm for Gr.3 (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 wheeled roller 80-100 KN in stages to proper grade and camber, applying and brooming stone screening/ binding Materials to fill up the interstices of coarse aggregate, watering and compacting to the required density.grading 3 as per technical specification clause no. 405.(B) By Manual Means

Providing and applying primer coat with Bituminous emulsion (CSS-1) on prepared surface of granular base including cleaning of road surface and spraying primer at the rate of 0.70-1.0kg/sqm using mechanical means as per Technical Specification Clause502

Providing and applying tack coat with Bitumen emulsion (CRS-1) using emulsion distributor at the rate of 0.2 to 0.25 kg per sqm on the prepared bituminous/granular surface cleaned with hydraulic broom as per Technical Specification Clause 503

Open-Graded Premix Surfacing (Providing, laying and rolling of open-graded premix surfacing of 20 mm thickness composed of 13.2 mm to 5.6 mm aggregates either using penetration grade bitumen to required line, grade and level to serve as wearing course on a previously prepared base, including mixing in a suitable plant, laying and rolling with a smooth wheeled roller 8-10 T capacity, to required level and grade (including carriage of mixed materials upto site lead from mixing plant) (including cost of testing of materials at site and laboratory as directed by the Deptt.) . Open-Graded Premix Surfacing using cold mix Binder( as per IRC: Specification 100:2014 Cationic Bitumen Emulsion CMS)

Seal Coat with cold mix Binder (As per IRC:SP-100,2014)Providing and laying seal coat sealing the voids in a bituminous surface laid to the specified levels, grade and cross fall using Type A, Type B and Type C as per Technical Specification Clause 510

Supplying, fitting and fixing RCC guard post 150cm long erected 75cm above the ground and 75cm below the ground with M-15 grade (nominal mix 1:2:4 with broken stone aggregate up to 20mm size) of cement concrete and required reinforcement tied in position with annealed black wire including centering, moulding the top, curing including painting concrete surfaces in 23cm strips upto 0.75m from the top alternately in black and white and having 2 nos. reflective band of desired shade etc. complete as per design and as directed. i. 30 cm dia. RCC guard post with reinforcement of 6nos. 12mm dia TMT main steel bars and 6mm TMT/ MS stirrups at 15cm c/c.

Providing and fixing of Retro - Reflectrorised cautionary, mandatory & informatory sign as per IRC 67 made encapsulated lens type reflective sheeting vide clause 1701.2.3 fixed over aluminum sheeting ,1.5mm thick supported on a mild steel angle iron post 75mmx75mmx6mm firmly fixed to the ground by means of properly design foundation with M-15 grade Cement concrete 45cmx45cmx60cm, 60cm below ground level as per drawings and Technical Specification Clause 801. (ii) 60cm equilateral triangle

Braja Nath Gogoi

SUNIL SHAH

M S Tapan Dutta