strengthening of substructure and replacement of existing fish bellied plate girders upto 12.20 m span of major bridges br. no 736 up (4x 12.2 m) at km:554/0-2, balance work of br no.750 up (10x 12.2 m) at km:564/8-9, br no.792 up (9x 12.2 m) at km:597/0-
