Maintenance of road from Kuppa to Batseri km 13.0 to 24.0 Distt. Kinnaur (Portion of Karchham Sangla Chhitkul road) (SH. P. L Kharanja stone soling, renewal coat V and U shape drain at various reaches in km 13.0 to 24.0)

Amount

Compacting original ground supporting subgrade Loosening of the ground up to a level of 300 mm (three hundred millimetre) below the subgrade level, watered, graded and compacted in layers to meet requirement of Tables 300.1 and 300.2 for subgrade construction as per Technical Specification Clause 303.5.2 including carriage of material in all leads, lifts as per the entire satisfaction and direction of Engineer-in-charge.

Stone soling properly hand packed filling interstices with Kharanja sotne and consolidating with power road roller to the required gradient and camber including spreading, watering and rolling of binding materials moorum or earth etcetera as per HPPWD specification including carriage of material in all leads, lifts as per the entire satisfaction and direction of Engineer-in-charge.

Providing and applying tack coat with Bitumen emulsion (RS-1) using emulsion distributor at the rate of 0.25 to 0.30 kg (zero point two five to zero point three zero kilogram) per sqm on the prepared dry and hungry bituminous surface cleaned with Hydraulic broom as per Technical Specification Clause 503. including carriage of material within all leads, lifts and other incidental charges and as per direction of Engineer-In-Charge.

Providing, laying and rolling of open-graded premix carpet of 20 mm (twenty millimeter) thickness composed of 13.2 mm to 5.6 mm (thirteen point two millimeter to five point six millimeter) crushed stone aggregates using penetration grade bitumen VG-10 at the rate of 1.46 Kg per sqm (one point four six kilogram per square metre) 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 (eighty-one hundred kilo newton) static roller capacity, finished to required level and grades to be followed by seal coat of Type B as per Technical Specification Clause 508 by manual means including carriage of material in all leads, lifts as per the entire satisfaction and direction of Engineer-in-charge.

Providing and laying seal coat with penetration grade bitumen VG-10 at the rate of 0.68 Kg per sqm (zero point six eight kilogram per square metre) mixed with fine sand, sealing the voids in a bituminous surface laid to the specified levels, grade and cross fall using Type B and as per Technical Specification Clause 510 by manual means including carriage of material in all leads, lifts as per the entire satisfaction and direction of Engineer-in-charge.

Construction of penetration macadam over prepared base by providing a layer of compacted crushed coarse aggregate using chips spreader with alternate applications of bituminous binder and key aggregates and rolling with a three wheel 80-100 kN static roller to achieve the desired degree of compaction as per Technical Specification Clause 506 50 mm thick including carriage of material within all leads, lifts and other incidental charges and as per direction of Engineer-In-Charge.

Earth work in excavation for structures as per drawing and technical specifications clause 305.1 including setting out, construction of shoring and bracing, removal of stumps and other deleterious materials and disposal upto any lead, dressing of sides and bottoms and back filling in trenches with excavated suitable materials complete within all leads, lifts carriage of material and other incidentials.

Providing and laying plain cement concrete M-10 (ten) grade nominal mix 1:3:6 (one cement : three sand : six graded stone aggregate 40 mm (forty millimetre) nominal size) in open foundations and plinths as per drawings and technical specification for rural roads clause 802, 803, 1202 and 1203 and curing complete including the cost of form work and carriage of materials in all leads and lifts as per the entire satisfaction and direction of Engineer-in-Charge.

RIPAN KUMAR