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 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.

On September 22nd, 1993, a tow boat in Alabama struck a railroad bridge in heavy fog, unknowingly setting the stage for one ...