Road from Kherkata GP Office to Medhisuti Construction of RCC Box Culvert unde SDMF for the year 2023-24 in North Lakhimpur District

Amount

Box culvert proper: Excavations for structures : Earthwork in excavation of foundation of structures as per drawing and technical specifications, including setting out, construction of shoring and bracing, removal of stumps and other deleterious material, dressing of sides and bottom and backfilling with approved material. i. Ordinary soil ii. Up to 3m depth

Plain/ Reinforced cement concrete in open foundation complete as per drawing and technical specification Clause 8002, 803, 1202, & 1203 (B) With natural gravel (I) PCC Gr M10 Nominal mix 1:2:4

Plain/ Reinforced cement concrete in open foundation complete as per drawing and technical specification Clause 8002, 803, 1202, & 1203 (B) With natural gravel (I) PCC Gr M15 Nominal mix 1:2.5:5

Plain/ Reinforced cement concrete in open foundation complete as per drawing and technical specification Clause 8002, 803, 1202, & 1203 (B) With natural gravel (I) PCC Gr M20 Nominal mix 1:2:4

Plain/ Reinforced cement concrete, in sub-structure complete as per drawing and technical specification Clause 8002, 803, 1202 and 1204. (A) with crushed stone RCC Grade M20. (III) (I)High up to 5m

Supplying, fitting and placing TMT (Fe-500) reinforcement bar in foundation complete as per drawing and technical specification Clause 1000 & 1202

Supplying, fitting and placing TMT (Fe-500) reinforcement bar in substructure complete as per drawing and technical specification Clause 1002, 1005, 1010 & 1202

Providing and layering cement concrete wearing course M-30 grade including reinforcement complete as per drawing and technical specification Clause 1206.3 i. With crushed stone

Drainage spouts complete as per drawing and technical specification Clause 1209

Construction of RCC railing of M-25 grade in cast in situ with 20mm nominal size aggregate, true to the line and grade, tolerance of vertical RCC post not to exceed 1 in 500, centre to centre spacing between vertical post not to exceed 2000mm leaving adequate space between posts for expansion complete as per approved drawing and technical specifications Clause 800, 900 & 1208.

Construction of flexible apron 1m thick comprising of loose stone boulders weighing not less than 25 Kg beyond curtain wall.

Providing pressure relief pipes of 100mm dia in bottom slab of box cell culvert on filter media base of 500mm × 500 mm as per drawing and technical specification Clause 1205.5.7

Providing weephole in brick massonary/stone massonary, plain cement concrete abutment wall ,wing wall return wall with 100 mm dia pipes extending through the full width of the structure with slope 1 in 20 ----- etc. as per drawing and technical specification Clause 614, 709, 1204.3.7

Culvert Approach : Construction of embankment with approved material obtained from borrow pits with a lift up to 1.5 m, transporting to site, spreading, grading to required slope and compacting p g to meet requirement of Tables 300.1 and 300.2 with a lead up to 1000m as per technical specification clause 301.5 i. Private land

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 o meet requirement of tables 300.2 with lead upto 1000m as per Technical specification Clause 303.1 i. Private land

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 by rotavator at OMC, and compacting with smooth wheel roller to achieve the desired density, complete as per technical specification Clause 401. i. For Grading II Material

WBM Grading 3 Using stone screening Type-B 11.2 mm for Gr. III Providing layering, spreading and compacting stone aggregates of specific sizes to water bound macadam specifications including spreading in uniform thickness, hand picking, rolling with smooth wheel roller 80-100 kN in stages to proper grade chamber, 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 Specifications Clause 405. A. By manual means

Interlocking pavement block (i) Providing and layering interlocking concrete block pavement with M40 grade of concrete block having thickness 80mm as per technical specification clause 1504 complete including carriage. (ii) Including edge block/edge restraints

Providing and layering filter material underneath pitching in slopes complete as per drawing and technical specifications Clause 1302.

Providing and laying pitching on slopes laid over prepared filter media as per drawing and technical specifications Clause 1302. i. Stone/Boulder

Providing and layering of boulder apron laid in wire crates with 4 mm dia GI wire conforming to IS:280 and IS:4826 in 100mm × 100mm mesh (woven diagonally) including 10 percent extra for laps and joints laid with stne boulders weighing not less than 25 Kg each as per drawing and technical specifications Clause 1301.

ABHIJIT GOGOI

MRIDUL HAZARIKA