Emergent repair of potholes at Majerhat Bridge under Howrah Highway Division in the Dist. of Howrah during the year 2025-26

Repair to pot holes by removal of failed material, trimming the sides to vertical and leveling the bottom, cleaning the same with compressed air or any appropriate method filled with B.M (thickness not more than 75 mm in single layer) applying bitumen emulsion prime coat at the bottom and bitumen emulsion tack coat on sides and on bottom as per technical specifications Clauses 502 and 503 for Rural Roads of MORD.

Patch repair on already filled pot holes with BM with 6 mm premix carpet using premixed stone chips of approved quality with hot matrix using 0.80 m3 of 11.2 mm chips and 0.25m3 of 5.6 mm chips per 100 m2 of surface, including preheating the stone chips on suitable pans and intimately mixing the hot chips separately with hot matrix @ 70 kg per m3 of stone chips, laying the mixture uniformly over the surface and rolling with power roller, after hand packing and pinning adequately to ensure a compact surface.

Seal Coat Providing and laying Premixed Seal Coat (Type B) with approved quality sand/grit @ 0.6 m3/ 100 m2 and bitumen binder on thoroughly cleaned black top surface coated with tack coat, including heating and mixing cleaned sand/grit (100 % passing through 2.36 mm sieve and retained on 180 micron sieve) uniformly with bitumen binder, laying and spreading the mix at an uniform rate using suitable means, brushing the surface, if necessary, to ensure uniformity, followed by rolling with power roller including the cost and carriage of binder and aggregates, cost of heating the binder and aggregates and all other incidental charges, cost of fuel and lubricants, including hire charges of machineries, tools & plants required for construction and quality control complete as per Clause 511 of Specifications for Road & Bridge Works of MoRT&H (5th Revision). By Manual Means With Hot Bitumen Binder (@ 6.80 kg / 10 sqm.)

Removal of rubbish,earth etc. from the working site and disposal of the same beyond the compound, in conformity with the Municipal / Corporation Rules for such disposal, loading into truck and cleaning the site in all respect as per direction of Engineer in charge

GST @18.00% over Sl.No. 1 to Sl. No. 3

LWC @ 1.00% over Sl. No. 1 to Sl No. 4.01

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