It was an early spring morning in Florida, but a severe storm had swept across Tampa Bay, shrouding the Sunshine Skyway ...

The collapse of the I-35W bridge 18 years ago was one of the worst disasters in Minnesota history, killing 13 people and leaving another 145 injured.

It's been 150 years since a bridge in Dixon, Illinois, collapsed. It remains the worst vehicular-bridge disaster in American history, claiming 46 lives and injuring another 56.

The National Bridge Inventory, or NBI, is an annually-published snapshot of the latest inspection reports for bridges in all 50 states plus D.C., Puerto Rico, Guam and the U.S. Virgin Islands.