CULVERT WORKS

PART A : BOX CULVERT WORK Dismantling of Structures 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 Cement Concrete Grade M-15 & M-20

Dismantling of Flexible Pavements Dismantling of flexible pavements and disposal of dismantled materials up to a lead of 1000 metres, stacking serviceable and unserviceable materials separately (Reference to MoRT&H's specification clause 202) By Mechanical Means Bituminous course

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). Ordinary soil Mechanical Means Depth upto 3 m

Removal of Unserviceable Soil with Disposal upto 1000 metres Removal of unserviceable soil including excavation, loading and disposal upto 1000 metres lead but excluding replacement by suitable soil which shall be paid separately as per clause 305 (Reference to MoRT&H's specification clause 301).

Sand Filling in Foundation Trenches with good local sand free from earth not exceeding 150 mm compacted thickness including inundating each layer by profuse water and porking and rammimg layer by layer. Quality of sand is to be approved by the Engineer-in-charge.(Reference to MORT&H's specification 304). Fine Sand

Plain/Reinforced cement concrete in open foundation complete all including vibrating and compacting, finishing, curing, sampling, testing etc. as per drawing and Technical Specifications (Reference to MORT&H's specifications 1500, 1700 & 2200). PCC Grade M15 Using PAKURl variety stone variety aggregate

Plain/Reinforced cement concrete in sub-structure complete all including vibrating and compacting, finishing, curing, sampling, testing etc. by mechanically mixed as per drawing and Technical Specifications (Reference to MORT&H's specifications 1500, 1700 & 2200). RCC Grade M30 Height upto 5m With Batching Plant, Transit Mixer and Concrete Pump Using PAKUR variety stone variety aggregate

Supplying, binding, fixing etc. including initial straightening, cutting to requisite length, hooking and bending to correct shape, placing in proper position of uncoated HYSD reinforcement bar in sub-structure complete as per drawing and Technical Specifications (Reference to MORT&H's specifications 1600 & 2200). HYSD Bars /TMT Bars

Reinforced Cement Concrete Crash Barrier : Provision of an Reinforced cement concrete crash barrier at the edges of the road, approaches to bridge structures and medians, constructed with M-40 grade concrete with HYSD reinforcement conforming to IRC:21 and dowel bars 25 mm dia, 450 mm long at expansion joints filled with pre-moulded asphalt filler board, keyed to the structure on which it is built and installed as per design given in the enclosure to MOST circular No. RW/NH - 33022/1/94-DO III dated 24 June 1994 as per dimensions in the approved drawing and at locations directed by the Engineer, all as specified (Reference to MORT&H's specification 811).

Construction of precast RCC railing of M30 Grade, aggregate size not exceeding 12 mm, true to line and grade, tolerance of vertical RCC post not to exceed 1 in 500, centre to centre spacing between vertical post not to exceed 2000 mm, leaving adequate space between vertical post for expansion, with a minimum 10 days curing complete as per approved drawings and technical specifications (Reference to MORT&H's specifications 2703, 1500, 1600 & 1700).