Updated at 10:10 a.m.
Southbound lanes remain open.
It is not clear how long the roadway will be closed. At least one person was injured in the accident, but no other details were released.
Crash w/Inj. GW Pkwy NB near Key Bridge. Arl Co VA. All NB lanes blocked w/new incident. SB reported open. Delays begin on I-395.— MATOC Alerts (@MATOC) July 18, 2017
Drivers shared —
WHOM got into a car accident on the GW memorial parkway this morning thus adding an hr of traffic???? so inconsiderate to me personally— dr cmt (@TheRealCarlyT) July 18, 2017
gw parkway completely shutdown & of course I'm in it 😒😩😑😡— Angela Zeledon (@angeed) July 18, 2017