NHIDCL/RO-Imphal/RR/M-P/Km 93.00 to Km 107.200 /2021-22/2nd Call

Amount

Hill Side Drain Clearance (Removal of earth from the choked hill side drain and disposing it on the valley side manually)

Land Slide Clearance in soil Clearance of land slides in soil and ordinary rock by a bulldozer D80 A-12,180 HP and disposal of the same on the valley side.

Clearing grass and removal of rubbish upto a distance of 50 meters outside the periphery of area cleared (By manual means)

Providing, laying and compacting granular base/sub base according to lines, grades and cross-sections by using naturally occurred sand/ gravel conforming to IRC Grd II of Most Specification free from organic or other deteterous constituent spreading with motor grader and compacting by rolling with power roller of 8-10 capacity in layers not exceeding 150 mm (spread thickness) i/c rolling of the road surface to proper level and grades 30 cm width edging on both side etc completed as directed by Engineer in Charge.

Providing, laying, spreading and compacting and stone aggregate of specific sizes to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with power roller 8-10 tones in stages to proper grade and camber, applying and brooming requisite interstices of coarse aggregates, watering and rolling making necessary earthen bund to protect edges, lighting guarding, barricading and maintenance of diversion etc. By Manual Means: I.R.C. Grade-II

Providing and applying primer coat with bitumen emulsion on prepared surface of granular Base including clearning of road surface and spraying primer using mechanical means. (A) On WBM;/WMM suface @ 0.70- 1.00 kg/Sqm. as per clause 502 of Ministry of Road Transport & Highways Specifications for Road and Bridge Works (Fifth Revision)

Providing and applying tack coat with bitumen emulsion using emulsion pressuring distributor method on cleaned granular surface pre treated with primer coat @ 0.25-0.30 kg/sqm as per clause 503 of Ministry of Road Tramsport & Highways specification for road and bridges works (fifth revision)

Providing, laying and rolling of closed-graded premix surfacing material of 20 mm thickness composed of 11.2 mm to 0.09 mm (Type A) or 13.2 mm to 0.09 mm (Type B) aggregates using penetration grade bitumen to the required line, grade and level to serve as wearing course on a previously prepared base, incliding mixing in a suitable plant, laying and rolling with a smooth wheeled roller 8-10 tonne capacity and finishing to required level and grade . Type-B.

Providing and laying of premix sand seal coat with HMP of appropriate capacity not less than 75 tonnes/hour using crushed stone chipping 6.7 mm size and penetration bitumen of suitable grade. Case II: Type B.