WBIW/TA/MCC/NIT-01(e)/2026-27

Dismantling of existing structures like culverts, bridges,retaining walls and other structure comprising of masonry, cement concrete, steel work, including T&Pand scaffolding wherever necessary, sorting the dismantled material, disposal of nserviceable material and stacking the serviceable material with all lifts and lead of 1000 m as per Technical Specifications Clause 202 for Rural Roads of MORD. (I) By Mechanical b) Cement Concrete

Supplying and laying inverted filter in canal bed, canal slope, weep holes, block pitching etc. as per drawing including preparation of Subgrade etc. complete as per direction of the Engineer-in-charge. Grade - I (63 - 45mm) Stone Aggregates

Supplying and laying inverted filter in canal bed, canal slope, weep holes, block pitching etc. as per drawing including preparation of Subgrade etc. complete as per direction of the Engineer-in-charge. 20 mm Nominal graded Stone aggregate

Supplying and laying inverted filter in canal bed, canal slope, weep holes, block pitching etc. as per drawing including preparation of Subgrade etc. complete as per direction of the Engineer-in-charge. Coarse Sand (Grading Zone I as per IS: 383- 1970) stacked at site

Labour charge for dumping / laying of Laterite / Stone Boulders / Shingles / Brick Bats, from stack of worksite with all leads and lifts in water or spreading the same on the slope of the bank of River/Sea or the slope of the embankment or in the River/ Sea bed to an uniform thickness as per direction of the Engineer-in-charge including cost of all accessories and other incidental charges. (a) Boulder 20kg & above where boats are not necessary.

Supply of stone / laterite boulders at site including cost of material, loading, unloading and carriage and including all incidental charges like Royalty, complete. (Royalty certificate in original from concerned authority are to be submitted along with the bill) Following rates of royalty are to be considered till further modification of prevailing rates by the Department of I dustry, Commerce & Enterprises, Govt. of West Bengal for Pachamil sourced stone boulder and laterite boulderand by the Department of Mines & Geology,Government of Jharkhand for stone boulder of Pakur variety a) Panchami source : Rs. 106 per Cum

Labour charges for stacking unloaded boulder / shingles to make them convenient for measurement as per direction of the Engineer-in-charge

Cast-in-situ cement concrete blocks or lining units as per designed section and specification,inominal mix proportion 1:1.5:3 (corresponding to M20 Grade) with well graded 20mm down stone metal aggregate, laid in position by casting in alternative panels or otherwise to keep a gap of 12mm between the adjacent units, over a layer of polythene sheet of thickness not less than 100 µm to act as a separator between the bottom surface of the block and the sand cushion/filter material laid below the blocks, including dressing, ramming, shuttering, finishing the exposed surface by trowel without adding any additional cement and sand mortar, curing and filling the gaps between the adjacent units by 5.6mm down coarse aggregate to be compacted properly, with all leads and lifts including supply and carriage of all materials, complete, without the cost of sand cushion/filter.