Also Try Bridges in Architecture How to Build a Bridge (PBS.org) Provides 4 potential building sites and then goes from there. Papers America's Deferred Maintenance of Infrastructure (Christian Science Monitor) "About one-quarter of America’s 577,000 bridges were rated deficient in 2004." 08-07 Design Flaw in Minnesota Bridge (MSNBC News) "Investigators have found what may be a design flaw in the bridge that collapsed here a week ago, in the steel parts that connect girders, raising safety concerns for other bridges around the country, federal officials said on Wednesday." 8-07 How the Minneapolis Bridge Failed (New York Times) Shows how the Minneapolis, Minnesota bridge failed and how bridges with similar structure are vulnerable to failure. 08-07 The Condition and Inspections of BridgesDesign (MSNBC News) "Enter a starting point and destination to see the condition and inspection dates of spans you cross." 01-08