Detailed Estimate for Construction of proposed HLRCC Bridge (2X21m) inplace of old narrow screw pile bride at CH:(3+320) in 4th km of road Shankar Chowk (NH-77) Sitamarhi to Bariyarpur Chowk (NH-104) Sitamarhi via Amghatta Road and Husaina more Sitamarhi Division for the year 2018-19 Total Length-42 m