emergent repairing of depression zone by river bed material of nazirhat-digaltary vr from 2.0 kmp to 4.50 km under p.w.d dinhata sub-division under p.w.d. cooch behar division during the year 2025-26.- 1 construction of sub base using local materials, spreading in uniform layers with motor grader on prepared surface, including screening the metal as necessary, mixing by mix in place method with rotavator at omc, and compacting with vibratory roller to achieve the desired density, lighting, guarding and barricading including cost and carriage of all materials and making necessary earthen bundh of one metre wide on each side to protect the edges complete as per clause 401 of specifications for road & bridge works of mort&h (5th revision). (iv) for construction of sub base by compacting river bed materials.cost of river bed materials 2 closebamboowallingmade of 65mm to 75mm dia. bamboos (in single line) driven about half-length into the ground side by side, with stout stays at an interval of 1m, 3nos. of half split bamboo runner of same dia fitted and fixed with nails etc. complete as per direction. (measurement to be taken along the length of piling after finishing the works). 3 supplying empty cement bags in good condition and filling the same with dry earth or sand, stitching the bag (cost of thread included) and carrying and placing them in position and all incidental charges complete. 4 construction of embankment with approved material obtained from borrow pits with a lift upto 1.5 m, transporting to site, spreading, grading to required slope and compacting to meet requirement of tables 300.1 and 300.2 with a lead upto 1000 m as per technical specification clause 301.5 for rural roads of mord. (mode of measurement: pre works and post works)extra lead upto 3 km over initial lead 1000 m. 5 add gst @ 18.00% on sum ofamount sl-01 to sl-4 6 add cess @ 1.00% on sum ofamount sl-01 to sl 5