Details: bridge partexcavation for structures in ordinary soil (earth work in exavation of foundation of structures as per drawing and technical specification including setting out, construction of shoring and bracing, removal of stumps and other deterious matter, dressing of sides and bottom and backfilling witgh approved material) mechanical meansdepth upto 3 m excavation for structures in ordinary soil (earth work in exavation of foundation of structures as per drawing and technical specification including setting out, construction of shoring and bracing, removal of stumps and other deterious matter, dressing of sides and bottom and backfilling witgh approved material) mechanical meansdepth upto 3 m to 6 m excavation for structures in ordinary soil (earth work in exavation of foundation of structures as per drawing and technical specification including setting out, construction of shoring and bracing, removal of stumps and other deterious matter, dressing of sides and bottom and backfilling