Construction of SPT Bridge No.1/1 over river Kollong at Kaliabor Law College under SOPD-G for the year 2025-26 under Kaliabor and Samaguri Territorial Road Division.

Amount

SPT Bridge Work

Supplying and driving timber piles of 25cm to 30cm diameter, dressed to heart wood including making length in every 30 cm interval, coal tarring two (2) coats with best tar applied hot (Rate inclusive of the cost of the required quantity of tar.) B. Using Azar/ Nahar/ Nageswar/ Zarul Timber (a) Mechanically with Rod monkey and crab winch i) Portion of pile actually driven underground Fender Pile

ii) Portion of pile remaining above ground. Fender Pile

Scarfing and joining piles 25 cm to 30 cm diameter, dressed to heartwood of 90 cm in length includng supplying, fitting and fixing with 2 nos. of 50mm x 10mm MS FI clamps and 16 mm dia MS bolts and nuts etc. complete as directed. (Timber for piles and coal tarring shall be measured and paid separately.)

Supplying, fitting and fixing timber beam and bearing beam rectangular in size fitted with M.S. etc. supplying spikes etc. as necessary and coal tarring two (2) coats with best tar applied hot as directed (Rate inclusiveof cost of the required quantity of tar) (b) Using Azar/ Nahar/ Nageswar/ Zarul Timber)

Supplying fitting and fixing "U" shaped flat iron strap making 0.5m x 0.3m size from 150mm x 12mm size MS flat including providing 10 bolts holes and fitting with 0.35m long 20mm dia MS bolts including fitting tightly with bearing beam, pile and RSJ beams etc. complete asdirected

Labour for fitting and fixing RSJ beam, CI saddle etc. in position including necessary scaffolding, cutting them to required size, drilling holes and supplying and fixing ncessary bolts and nuts, painting two coats complete (Tar-Steel paints to be supplied by the contractor at his own costs) including all lead and lifts from PWD Godown.

Wood work including supplying , fitting and fixing complete with necessary M.S. bolts, nuts, nails, screw etc. and coal tarring two (2) coats with best tar applied hot (Rate is inclusive of the cost of the required quantity of tar.) (B) Using Azar/ Nahar/ Nageswar/ Zarul Timber) (a) Undressed in floor planks, collars, bracing, standards, wheel guards, struts and railings, runner belts, rail, posts etc. Joist Packing Wheel Guard Runner Joist Runner Decking ( Long) Decking ( Short ) Wheel Guard Collar Belt Bracing Rail Post Rail Strut Railing Fender Collar Fender Belt

(b) In track way planks (alternate nailing to be done with decking in a seggragate way.)

supplying fitting and fixing the pile shoes made of 6mm thick mild steel plate with necessary welding joints, size of pile shoe will be 78.54 cm (circumferential length of at top.) x 50cm(Depth) x 5cm (circumferential length at bottom) and 25cm inside diameter at top, including fitting and fixing 3 (Three) nos. M.S. plate of size of 6mm x 50mm, length 45cm at top of the pile shoe with necessary welding and drilling three nos of holes in each plate including fitting and fixing the pile shoes at the pile end with necessary patent nails etc. , complete as directed by the Department .The pile shoe should be camphered to fit the pile shoe properly with necessary grooving for placing the MS platesand pile shoe. bridge Pile Fender Pile

Construction of temporary Bamboo bridge of 3.70m clear road way with Bholuka or Barua Bamboo post 5nos. in each rows driven at least180cm. below ground level and rows not more than 150cm apart from center to center Bholuka or Barua Bamboo dham longitudinal groth both closely placed and tied with half bamboo 90cm to 120cm apart in both layers and ttwo layers of jati bamboo chattais ( top layer should be digonally woven), 70 mm to 100 mm thick brushwood in between chattias should be tied with half jati bamboo on both ends , bamboo railing with bholuka or barua bamboo post placed at150cm apart jati or betua bamboo hand rails of two lines both side of every alternate rows. All tying must be done with cane or coir string and only mature bamboo should be used in work. Bemboo Bridge

Single bamboo spur and palasiding of whole 1st class bamboo (Bholuka or Barua ) 85mm to 100mm dia closely packed & driven, including fitting and fixing with half 2nd class bamboo (Jati or Bethua) bamboo kamis horizantally in three rows with the cane or tieing wire complete and struts 1500 mm apart longitudinally and providing brush wood as per drawing and technical specification clause 1302.5 of MORD. ( c ) Driven at least 900mm below and 1200 mm above the ground on average . Palasiding 2 rows each on both approach

Supplying, fitting and fixing 20cm to 25cm diameter Jungle Wood Dressed guard post of 150cm long erected 75cm above the ground and 75cm below the ground, fitted with horizantal struts size 50mm x 50mm x 550mm long at bottom with necessary nails necessary etc. including coal tarring one coat below ground and painting 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. Wood Guard Post

Laying and finishing sand Filled cement bags ,placing smoothly step by step to provide a proper gradient as per directed by the site in charge by the deptt. Bags on approaches

Approach Road Work

Clearing and grubbing road land including uprooting wikd vegetation,grass, bushes, shrubs, saplings and trees of girth upto 300 mm, removal of stumps of such trees cut earlier and disposal of unserviceable materials and stacking of servieable material to be used or auctioned, upto a lead od 1000 m including removal and disposal of top organic soil not exceeding 150 mm in thickness as per Technical Specification Clause 201.i) By Manual Means (A) in area of non thory jungle .

Construction of embankment with approved material obtained from borrow pits with a lift upto 1.5 m, transporting to site, spreading, grading to required slopeand comp g actin to meet requirement of Tables 300.1 and 300.2 with a lead upto1000 m as per Technical Specification Clause 301.5 ii . Govt land (Typical Cross Section Enclosed)

Construction of subgrade and earthen shoulders with approved material obtained from borrow pits with all lifts and leads, transporting to site, spreading,grading to required slope and compacted to meet requirement of Table300.2 with lead upto 1000m as per Technical Specification Clause303.1 (i) Private Land. Quantity=2000.00mx1.594m2(area from typical cross section)=

Construction of granular sub-base by providing well 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 Clause 401. (ii) For Grading II Material

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/binding materials to fill-up the interstices of coarse aggregate, watering and compacting to the required density grading 2 as per Technical Specification Clause 405. (A) By Manual Means

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 3 as per Technical Specification Clause 405. (A) By Manual Means

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 0.70-1.0 kg/sqm using mechanical means as per Technical Specification Clause 502

Providing and applying tack coat with Bitumen emulsion (RS-1) using emulsion distributor at the rate of 0.25 to 0.30 kg per sqm on the prepared granular surfaces treated with primer & cleaned with Hydraulic broom as per Technical Specification Clause 503.

Providing, laying and rolling of open-graded premix carpet of 20 mm thickness composed of 13.2 mm to 5.6 mm aggregates either using penetration grade bitumen or emulsion 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 three wheel 80-100 kN static roller capacity, finished to required level and grades to be followed by seal coat of either Type A or Type B or TypeC as per Technical Specification Clause 508.Case - I: By Manual Means ii) Bitumen (S-65)

Providing and laying seal coat sealing the voids in a bituminous surface laid tothe specified levels, grade and cross fall using Type A, Type B and Type C as per Technical Specification Clause 510 A By Manual Means Case - I : Type A ii) Bitumen (S-65)

Retro-reflectorised Traffic Signs Providing and fixing of retro reflectorised cautionary, mandatory and informatory sign asper IRC:67 made of encapsulated lens typereflective sheeting vide Clause 1701.2.3fixed over aluminium sheeting, 1.5 mm thick supported on a mild steel angle iron post75 mm x 75 mm x 6 mm firmly fixed to the ground by means of properly designedfoundation with M15 grade cement concrete 450 mm x 450 mm x 600 mm, 600 mm below ground level as per drawings and Technical Specification Clause 801 (iv)80 cmx 60 cm rectangular

Satyajit Bora (BID ID -285538)