Baltimore's iconic Francis Scott Key Bridge was hit by a ship and collapsed one year ago. Since then state and federal leaders collaborated to fund and reconstruct a brand-new bridge, which is expected to be finished by the fall of 2028.

The National Transportation Safety Board is urging Louisiana's transportation department to assess the safety of eight of its bridges, including almost all of the bridges crossing the Mississippi River in the state.

Researchers found that the risk is “pretty substantial” that another ship could crash into one of the nation’s other bridges, said Michael Shields.