I have lived in Maryland. This is huge. The bridge is part of the Baltimore Beltway. Now, traffic from I-95 North going South will have to travel the west side of the Beltway or go through town - the only way around it. Also, this will blockade the harbor for some time to come.
WTOP, the premiere news radio station in the Baltimore/Washington area, has confirmed this.
Somebody posted this on Twitter. I can’t say if is genuine. It shows a massive explosion.
Driven that bridge many times.