Michigan’s iconic Mighty Mac suspension bridge is among 68 in the United States that should be assessed for risk of collapse if stuck by a ship, national transportation officials said.

Homendy’s update on agency's findings come nearly a year after Dali - a 984-foot container ship - lost power ... a “mathematical risk model” used to determine a bridge’s risk of collapse.

A year after Baltimore's deadly bridge collapse, a new study shows such incidents remain likely because of larger ships and increased traffic.