The northbound tubes of the Fort McHenry Tunnel reopened around 8 a.m., and the right southbound tube reopened shortly thereafter. The left southbound tube reopened around 2:40 p.m., the MDTA said.

Unlike the Key Bridge, the Fort McHenry Tunnel and the Baltimore Harbor Tunnel have long restricted what hazardous materials can pass through, as a simple crash could lead to a fiery catastrophe ...