Bridging Data Gaps
The National Bridge Inventory completed in the wake of the I-35W collapse in Minneapolis has revealed numerous gaps in data and delayed inspections at the State level.
"When the I-35W bridge collapsed a year ago in Minneapolis, federal officials immediately requested an emergency inspection of every similar bridge in the nation. There was just one problem: No one knew how many there were.
At first, officials thought there were 756 steel deck truss bridges like the one that fell. That's how many they found in the official federal database of bridges, the National Bridge Inventory, which gets its records from the states. Then state engineers found 32 more to add to the list.
By the time the survey was finished, the count of bridges of the same type as the Minneapolis span was down to 479, or 277 fewer than initially reported."
- Login or register to post comments
- Email this page
- America's Third World Infrastructure - Feb 03, 2012
- Exploring the Art of Wayfinding - Feb 01, 2012
- A Paradigm Shift in Urban Runoff - Jan 30, 2012
- Understanding the Water-Energy Nexus - Jan 29, 2012
- Excessive Highway Building To Blame For Bridge Woes - Aug 05, 2008


















