I had dinner with a couple of civil engineers recently. They said that we should expect to see more and more bridges falling down.

I concur. Even without peak oil. With peak oil, it's going to be worse.

yikes!!

do they know where?

In a Post-PO world, do we even need bridges...? At least for cars...?

Well without as many cars and trucks on them (esp. trucks) they should last longer...