Bridges obstructive?

JUST how something so thoughtless, short-sighted and wasteful a project in brick, mortar and rods could be implemented across rivers and canals baffles one to no end! But this is only possible perhaps in our peculiar context marked by irresponsible utilisation of allocation that once given are seldom accounted for. These hardly ever meet physical targets and yet that is how things have been for years on end. Even the original specifications of bridges and culverts get altered at the whim and caprice of an implementing agency to suit corrupt and collusive purposes.
Thus, when the taskforce to save rivers informs us of the existence of 13 low-height bridges on the rivers Buriganga, Turag, Shitalakkhya and Balu, we may not be surprised but we must be dreadfully aware of how costly these deliberate blunders can prove. Already as impediments to river vessels laden with cargo that couldn't simply navigate past them there has been incalculable loss in terms of commerce. Furthermore, and importantly, our understanding is that such under-height bridges will be a stumbling block to implementing a circular waterway project which already seems to be on hold.
In such a context, we no doubt have to clear the deck of such liabilities. We note that the taskforce to save rivers has urged the Local Government and Rural Development(LGRD) ministry, Roads and Highways Department and Bangladesh Railway which put up the bridges to pull these structures down and rebuild them with proper height based on expert advice.
Let's not be oblivious of the practical tasks involved in pulling it off, though. First of all, this will create temporary disconnect on the roads calling for paving and use of diversions during the rebuilding process. The bailout costs together with replacement expenditure are going to be enormous. At whose expense will all these be done -- evidently at cost to poor tax payers and through interest payment on loans.
Given the estimated loss in time, money and energy it is of utmost importance that we do not only rest with rebuilding the bridges but simultaneously also probe how and why the bridges are having to be written off and who are responsible with a clear indication that the culpable will be held to account. We seldom draw lessons from our mistakes but this time from bridge blunders we must. There should be no repetition of the same.