How safe are our bridges?

I do believe that the less the government is involved in my life the better. I do believe their major job should be the safety of roads and bridges. This week I watched in horror as the bridge collapsed in Minnesota during rush hour. I have also followed the Big Dig disaster in Boston. I remember sitting in Boston traffic for over 4 hours due to a detour around the building of the underground thorough fair through the city. According to WCBC Boston the glue company was indicted in the deadly Big Dig collapse. 20 anchors that were holding the concrete ceiling panels in place were secured with short-term strength glue. If a tunnel build in the last few years is failing how can we trust that bridges and roads are safe, especially those who were build years ago. When I was a young child I remember going over the bridge from Detroit to Canada. I was never a real bridge person. (I have this occasional nightmare that I am on the bridge to nowhere.) The other option was going into the tunnel that connected the two countries but I was even more fearful the the millions of gallons of water that could pour in at any moment. So a note to Big Government: Keep our roads, bridges and tunnels safe so we don't see further bridge failures. I am going to Minnesota next week and I am a little nervous about going over a bridge.