Crews are waiting for asphalt to cool and should be finished working on southbound lanes by midday Thursday.
Authorities reopened the highway following the 6:10 a.m. accident, just before Route 97, also known as Georgia Avenue.
Emergency pavement repairs will close lanes, even during peak commuting times, through the week, Maryland officials say.
Metro Transit Police pull a man back onto the station platform just seconds before a Red Line train would have struck him.
Multiple vehicles were involved in the crash.
The 4000 to 4200 block of Albermarle Street NW has reopened.
Delays on the Orange, Silver and Blue lines because of an earlier train malfunction at Smithsonian station have been cleared.
Eastbound traffic on the Southeast Freeway had been redirected because of an accident just before Third Street tunnel. Police said the accident is clear and all lanes are open.