Well, I am feeling Oh-so-safe here in my state now! Check it out...We are on the top of the worst bridges list in the nation!
An analysis of 2006 Federal Highway Administration data found that Minnesota bridges were generally in better shape than those in other states. Only about 6 percent of the state's 20,000 bridges were listed as being structurally deficient. In Oklahoma, nearly 27 percent of bridges were cited by the federal government as being structurally deficient, the highest percentage among the states.
http://www.forbes.com/feeds/ap/2007/08/02/ap3983762.html
A huge percentage of those are termed "obsolete", too! Sheesh!
Of course, I remember driving over bridges like this on a school bus, then later on when I first got my license!! The boards would creak underneath you and if you drove off the main boards...you could almost feel the wood splinter under the tires! It was scary stuff.
http://okbridges.wkinsler.com/birdcreek7.html
You sure make us feel like your safe where your at SS!! NOT!
The last pix made me laugh!!! Reminds me of bridges in Ia when I was a kid. But heck they never fell down.