[andechs]

The discovery of the alternate route by "everyone else" means that the roads are now in more usage.

Unless the bridge collapse resulted in increased traffic levels afterwards, the same traffic that used to go over I85 is now distributed over 2 routes.

While there's a net negative to you, it's likely that a lot of people ended up saving time on their routes.

[throwawayfire]

> it's likely that a lot of people ended up saving time on their routes.

It's theoretically possible this describes a Braess paradox, whereby everybody loses: https://image.slideserve.com/280060/braess-s-paradox-l.jpg