62/HDA/EC OF 2026 2027

Dismantling of flexible pavements and disposal of dismantled materials upto a lead of 1000 metres, stacking serviceable and unserviceable materials separately (Reference to MoRT&H's specification clause 202). (II) By Mechanical Means Bituminous course. Ref:- PWD-NH (R)-2019-20, Page No-75, Item No.-5(II)A

Dismantling of existing structures like culverts, bridges, retaining walls and other structure comprising of masonry, cement concrete, wood work, steel work, including T&P and scaffolding wherever necessary, sorting the dismantled material, disposal of unserviceable material and stacking the serviceable material with all lifts and lead of 1000 metres (Reference to MORT&H's specification clause 202).By Mechanical Means Reinforced cement concrete grade M-20 & above. Ref: Page-73, Sl no. 4-(i)II B - PWD NH SOR 2019-2020.

Construction of sub-grade and earthen shoulders with approved material obtained from borrow pits with all lifts & leads, transporting to site, spreading, grading to required slope and compacted to meet requirement of table No. 300-2 (Reference to MoRT&H's specification clause 305). Ref:- PWD (R) (NH))Pg No-88, Item No-18 (Derrive Rate).

Pumping out water from ponds or tanks. Ref.:-Page no-4, Item No-8, PWD(B) SOR

By Mix in Place Method Construction of granular sub-baseby providing graded material such as natural Laterite Boulder/Moorum/crushed gravel/crushed stone/combination depending upon the required grading spreading in uniform layers with motor grader on prepared surface, mixing by appropriate mechanica lmixure (with controlled addition of water), and compacting with vibratory roller to achieveat least 98%of themaximum dry density for the material determined as per IS:2720 (Part 8), complete as per clause 401 Ref: Page-99, Sl no.1B(i) PWB-PWD-NH sch 2019-2020.

By Mix in Place Method Construction of granular sub-base by providing graded materials such as natural sand/crushed gravel/crushed stone/combination depending upon the required grading , spreading in uniform layers with motor grader on prepared surface, mixing by mix in place method with rotavator and compacting with vibratory roller to achieveat least 98%of the maximum dry density for the material determined as per IS:2720 (Part 8), complete as per clause 401 desired density, complete as per clause 401. Rate per cum for grading-IV Material. Ref: Page-99, Sl no.1B, 1B(IV)-NH SOR 2019-2020 (Derrive Rate).

Providing, laying, spreading and compacting graded stone aggregate conforming to the grading of table 400 13 revised vide table2 of IRC : 109 (2015) to wet mix macadam specification including premixing the Material with water at OMC in mechanical mix plant carriage of mixed Material by tipper to site, laying inuniform layers with paver in sub-base / base course on well prepared surface and compacting with vibratory roller to achievethe desired density. The thickness of a single compacted layer shall not be less than 75 mm.(Reference to MoRT&H's specification 406. Ref:- Derived Rate.(PWD-NH (R)-2019-20, Page No-106, Item No.-12

Providing and applying tack coat with Cationic bitumen emulsion (RS1) complying with IS:8887 using emulsion pressure distributor on the prepared bituminous/granular /cement concrete pavement surface cleaned with mechanical broom and high pressure air jet (Reference to MORT&H's specification clause 503). Ref:- Derived Rate.(PWD-NH (R)-2019-20, Page No-111, Item No.-2(A)(i)

Mastic Asphalt. Providing and laying 25 mm thick mastic asphalt wearing course with approved grade bitumen meeting the requirements given in table 50039, prepared by using mastic cooker and laid to required level and slope after cleaning the surface, including providing antiskid surface with bitumen precoated fine-grained hard stone chipping of 13.2 mm nominal size at the rate of 0.005cum per 10 sqm and at an approximate spacing of 10 cm center to center in both directions, pressed into surface when the temperature of surfaces is not less than 100°C, protruding 1 mm to 4 mm over mastic surface, all complete as per clause 516 (Reference to MORT&H's specification clause 516 along with IRC:107). Ref: Page-122, Sl no.14-PWD NH sch 2019-2020.

Excavation for Structures Earth work in excavation of foundation of structures as per drawing and technical specification,including setting out, construction of shoring and bracing, removal of stumps and other deleterious matter, dressing of sides and bottom and backfilling with approved material (Reference to MORT&H's specification 304).Mechanical means, Depth upto 3m Ref: Page-179, Sl no.1(I)B - PWD/NH SOR 2019-2020.