Man NE Kansas has a ton of these. Usually there will be a sign before it warning not to enter during a flood.
This message is for MORGAN
I'm pretty sure the bridge is fine because it is just in a park. Because if there was flooding,why would you go to the park anyway? It's fine...and does not need to be rebuilt.
You need to rebuild and construct a new bridge so it could be a two-way. It also need to be higher in case of a flood watch or tornado watch. You need to have space so that the cars can move freely and wouldn't have to wait for another car