Two cars collided on I-270 in Montgomery County at about 3:30 p.m.
The road has reopened for drivers.
The Maryland Highway Administration has issued an update on its work zones in the D.C. suburbs.
Interstate 97 was closed while the injured Anne Arundel police officer was airlifted from the crash site. He has been treated and released from the hospital.
And it won't be the last, as rebuilding continues to generate extra congestion.
Five millions of gallons gushed out of the broken 16-inch main.
Water from the 16-inch pipe has flooded the roadway.
About 600 people were on the train. The driver of the dump truck suffered minor injuries.
The bridge needs emergency repairs.
Five vehicles collided at 2:16 p.m.