That is the big question to be answered by Indian railway and our government.why to waste huge amount of around 3k crore rupees .if they thought it won't carry much rail traffic then they should have mentioned of road only bridge in their feasibility report.with only about half of this amount they would have completed four lane road bridge.with nearly same amount NHAI is going to construct Munger-Bhagalpur-Mirzachiwki four lane highway which will be much useful for both the cities.only saving grace is road part of this bridge which will be super duper hit once it is thrown open to public possibly at the end of this year.