Usually you build bridges to traverse bodies of water.
Then there is the case of building a bridge to let more water through.
The video above highlights a case that isn’t even that:
While the bridge will traverse a one-mile span of the Everglades and will also allow more water to get through, downstream, into Everglades National Park …
The hope for full restoration hinges on future water to come.
Here’s an article that explains more.