NIT No.03/EE(N)/WBTDCL OF 2026-27 (Technical)

Excavation for Structures,Ordinary soil, Manual Means (Depth upto 3 m). 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, backfilling the excavation earth to the extent required and utilising the remaining earth locally for road work (Reference to MoRT&H's specification clause 304).

Dismantling of Structures. Dismantling of existing structures like culverts, bridges, retaining walls and other structurecomprisingofmasonry, cement concrete, wood work, steel work, including T&P and scaffolding wherever necessary, sorting the dismantled material, disposal of unserviceablematerialandstackingthe serviceablematerial with all lifts and lead of 1000 metres (Reference to MORT&H's specification clause 202) Dismantlingboulders laidinwirecrates including opening ofcratesandstacking dismantled materials.

Laying Reinforced Cement Concrete PipeNP4/PrestressedConcretePipe on First Class Bedding in Double Row. Laying Reinforced cement concrete pipe NP4 / prestressed concrete pipe for culverts on first class bedding of granular material in double row including fixing collar with cement mortar 1:2 but excluding excavation, protection works, backfilling, concrete and masonry works in head walls and parapets as per the requirements of MORT&H's specification 2900

PCC 1:3:6 in Foundation Plain cement concrete of 1:3:6 nominal mix with crushed stone aggregate 40 mm nominal maximum size mechanically mixed, placed in foundationandcompactedbyvibration includingcuring for14daysasper the requirements of MORT&H's specification 1704.3.

Boulder Apron Laid in Wire Crates Providing and laying of boulder apron laid inwirecratesmadewith4mmdia wire dia not less than 4mmGI wire conforming to IS: 280 & IS:4826 in 100mm x 100mmmesh Mesh size not more than150mm (weaveddiagonally) including10percent extrafor lapsand joints laidwithstonebouldersweighing not less than 40 kg each ( Tensile strength300 450mpa,sizeofwirecrates 3.0mx1.50mx1.25 m) (Reference to MORT&H's specification 2503).

Plain/Reinforcedcementconcretein Plain/Reinforcedcementconcretein sub-structure complete all including vibrating and compacting, finishing, curing, sampling, testing etc. by mechanically mixed as per drawing and Technical Specifications (ReferencetoMORT&H'sspecifications 1500, 1700 & 2200).

Construction of Subgrade and Earthen Shoulders 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).

Supplying and Laying in the particular pattern of cement concrete block pavements Supplying and Laying in the particular pattern of cement concrete block pavements with BIS certification and spacer nib of size and shape with aspect ratio as per IS 15658 with cement concrete grade not less than M40 on the prepared base course of specified CBR as mentioned in design and drawing with a cushion of bedding sand of 30 to 50 mm thick (grading of the bedding sand as per clause 6.5.1 of IRC SP-63) and filling up the gaps between two paver block with joint filling sand (the grading of the joint filling sand will be as per clause 6.5.2) complete as per IRC SP - 63 with proper confinement of bedding and joint filling sand, compaction,levelling and filling up of the edge gaps with mortar. Type I, c) Type - III (80 mm thickness) inter locking system