Or how about at least maintaining the ones we have?
They've added an obnoxious auto-playing video since I first found this article this morning, but the story important, I think. Nobody was killed, thank goodness.
Bridge collapse in Washington State:
http://abcnews.go.com/US/wireStory/bridge-collapses-nw-wash-people-water-19246261#.UZ-IfMqWQZo
The one useful thing about the video is it points out this is not at all a new problem. It mentions the Minneapolis/I-35 bridge in 2007, but also this bridge was about the same age as the Sunshine Skyway Bridge which collapsed in 1980, killing 35 people. - ETA: It was pointed out to me that my link was borked, and also that the Sunshine Skyway was not a good example because a fucking huge tanker hit it. However, I shall let the rest of my rant stand.
I'm so frustrated by the fact that every time something like this happens people get wound up about our bridges for about fifteen minutes, but then it's conveniently forgotten and very little ever gets done. Instead it's easier to widen roads and pfutz around with interchanges. Which, frankly, if the surface of the road is a little rough, big freakin deal, you drive a little slower and maybe pay more on shocks, but if the damned bridge drops out from underneath you, you might effing DIE.