From: Minnesota Department of Transportation
The State of Minnesota has posted on the Internet its government documents concerning the August 2007 collapse of the I-35W Mississippi River bridge in Minneapolis. They provide news and updates, inspection expenditures (2004-2007), recent inspection reports (including fatigue evaluation), an inventory of deficient trunk highway bridges in Minneapolis (released August 2007), and related material.
http://www.dot.state.mn.us/i35wbridge/
http://fhwa.dot.gov/bridge/nbis.htm (National Bridge Inspection Standards)