I'd feel completely different about this, if the land was going to only be used by a local governmental agency... temporarily for the public good.... and no one involved will be making a profit off of it. At the moment, I can't think of a better example than parking for a all volunteer civil war battle re-enactment that will be for one day, that is free to the public. No money changing hands anywhere.
But here's my real problem. Your land is going to be used for what could be an undetermined amount of time (supply chain disruptions anyone?), by dozens of FOR PROFIT companies, who are going to benefit from the use YOUR land, to make all sorts of profit with this bridge replacement.
So... why exactly are you not allowed to make money on the deal as well?
I'd let them know that nothing will happen until you can consult with your lawyer.... and then not get in any hurry to contact your lawyer. See what their next move is before you do.