Replacement Of Steel Girders With Psc Slab And Strengthening Of Substructure Of Bridges Upto Span 12.20 M {Br No 206 (Span 2X12.19 M), 231 (Span 3X12.19M) On Dui-Bti, Br No 215 (Span 1X12.00M) On Dui-Jhl, Br No. 4 (Span 3X12.20M) & 6 (Span 2X12.20M) On Jhl-Hsr Under Sr.Den-Ii.