That bridge is kinda trivial to begin with but I used it once when I farmed the Depraved Sanctuary because it was slightly faster. You’re meant to go through the Flooded Passage early on because you come out to an immediate portal and a small campsite with the blacksmith quest. You pass up a lot of potential for early xp and gear by ignoring Flooded Passage.
I probably won’t continue fixing that bridge because the run from the other portal nearby isn’t much longer.