CRD/ 2023-24/4 Construction of RCC Box Culvert with earth filling at Marupara village under Chirang Forest Division

Amount

Clearing and grubbing road land including uprooting wild vegetation, grass, bushes, shrubs, saplings and trees of girth upto 300mm, removal of stumps of such trees cut earlier and disposal of unserviceable materials and stacking of serviceable material to be used or auctioned, upto a lead of 1000m including removal and disposal of top organic soil not exceeding 150mm in thickness. (i) By Manual means (A) In area of non thorny jungle.

Construction of embankment with approved material obtained from borrow pits with a lift upto 1.5m, transporting to site, spreading, grading to required slope and compacting to meet requirement of a lead upto 1000m. i) Private land

Const of granular sub base by providing well graded material, spreading in uniform layers by motor grader on prepared surface (Well Graded Material for sub-base Grading-I 53mm to 9.5mm).

Providing, fitting & fixing of Display board with carrying charge

Earth work in excavation of foundation of structure as per drawing and technical specifications including setting out, construction of shoring and bracing removal of stumps and other deleterious matter dressing of sides and bottom and back filling with approved materials. 1. Ordinary soil upto depth 3.00m

Sand filling foundation trenches as per drawing and technical specifications.

Plain cement concrete 1:2:4 nominal mixes in foundation with crushed stone aggregate 40mm nominal size mechanically mixed, placed in foundation and compacted by vibration including curing for 14 days.

Plain/ Reinforced cement concrete work in open foundation as per drawing and technical specifications. (V) RCC Grade M-25

Providing and laying reinforced cement concrete in superstructure as per drawing and technical specifications. A. RCC grade M20 (i) For solid slab super-structure (a) Height upto 5m.

Supplying, fitting and placing TMT bar reinforcement in sub-structure as per drawing and technical specifications.

Supplying, fitting and placing TMT bar reinforcement in super- structure as per drawing and technical specifications.

Providing and laying cement concrete wearing coat M30 grade including reinforcement complete as per drawing and technical specification.

Providing weep holes in brick masonry/plain/ reinforced concrete abutment, wing wall/ return wall with 100mm dia AC pipe through the full width of structure with slope 1V:20H towards drawing force complete as per drawing and technical specification.

Back filling behind abutment, wing wall and return wall as per drawing and technical specification. ii) Sandy material

Construction of RCC railing of M25 grade, in cast-in-situ with ramming 20mm nominal size aggregate true toline and grade, tolerance of vertical railing post not to exceed 1 in 500 centre- to- centre spacing between vertical posts not to exceed 2000mm as per drawing and technical specifications.

Providing and laying curtain walls as per drawing and technical specifications stone masonry in cment mortar (M10).

Flexible Apron: Construction of flexible apron 1m thick comprising of loose stone boulders weighing not less than 25 kg beyond curtain wall

Sri Gilard Basumatary