For kids, older folks, the disabled, or anyone carrying packages, people pushing a stroller or a bike, those walking their dogs, that footbridge would be unsafe. Even a strong gust of wind might cause someone to topple into the cold water. And how do people coming from opposite sides get across?

A more practical approach would have been to build one elevated pathway that was functional during rising waters and still wide enough to allow foot traffic to pass.

I like it when people are still trusted to use their own judgement on whether something is safe or not. The world would be a lot less anodyne than ours.

I only commented on the inefficiency of that particular design of a footbridge as it fails to meet its intended purpose of keeping pedestrian traffic moving without obstruction.