Also by excavating that much material, you're probably going to be undermining the foundations of the bridge.
Raising the bridge will have been fearsomely expensive, so someone somewhere will have done the cost/benefit analysis on all the options before that was chosen as the best one. Or they could listen to some random internet person asking "well why don't they just..."
(, Mon 9 Nov 2020, 10:10, Reply)
but it still seems to me that lowering the road would have been the better option
(, Mon 9 Nov 2020, 11:31, Reply)