9:15 A.M. Update:
The accident on the eastbound Little River Turnpike at Guinea Road in Annandale is now blocking all eastbound lanes.
The right two lanes are still blocked on I-66 East at the Fairfax County Parkway. A pedestrian was struck there earlier this morning and taken to Fairfax Inova Hospital with life-threatening injuries, according to the Virginia State Police.
8:55 A.M. Update:
The right two lanes remain blocked on I-66 East at the Fairfax County Parkway.
The accident on the eastbound Little River Turnpike at Guinea Road in Annandale is blocking the right two lanes.
The accident on U.S. 29/Lee Highway at Old Centreville Road in Centrevill has been cleared and all lanes reopened.
8:35 A.M. Update:
The two left lanes are now open on I-66 East at the Fairfax County Parkway. The right lanes remain blocked, and massive delays remain approaching this spot.
An accident is blocking the eastbound right lane on the Little River Turnpike at Guinea Road in Annandale.
An accident on U.S. 29/Lee Highway at Old Centreville Road in Centreville is blocking all northbound lanes. This is just east of Sully Road.
8:10 A.M. Update:
I-66 East remains largely blocked at the Fairfax County Parkway. The right three lanes and right shoulder are all closed, with traffic only getting by on the far left.
8 A.M. Update:
MARC Penn Line train 517 is running 25 to 30 minutes late due to the late arrival of equipment. It’s also running one car short, so expect crowding on that train.
Penn Line train 419 is running express service from Baltimore to BWI to run ahead of the delayed train 517.
7:45 A.M. Update:
The accident on eastbound I-66 at the Fairfax County Parkway is still blocking the right three lanes, but the left lane has reopened. Traffic is getting by on the far left, but heavy delays remain.
7:35 A.M. Update:
Eastbound I-66 remains blocked at the Fairfax County Parkway due to an accident.
MARC riders who use the Monocacy station: The building is apparently locked for ticket purchases. They expect it will be reopened for the evening commute. Riders can buy one-way and round trip tickets on the train without paying any penalty, but remember you have to pay in cash on the train.
7:20 A.M. Update:
An accident on I-66 East at the Fairfax County Parkway is blocking all eastbound lanes.
7 A.M. Update:
MARC Penn Line train 517 left Perryville 25 minutes late due to late arriving equipment; that train is following Amtrak train 151.
Penn Line train 409 is also running 8 to 10 minutes late and following an Amtrak train.
6:40 A.M. Update:
The accident on I-66 East before Nutley Street is blocking the left shoulder.
The earlier accident on I-66 East before Glebe Road is still blocking the left shoulder there.
6:22 A.M. Update:
An accident on I-66 East before Nutley Street is now blocking the left lane.
6:20 A.M. Update:
All lanes have reopened on eastbound I-66 before Glebe Road. However, delays still stretch back nearly to the Beltway. Expect these delays to linger for a while, before they give way to the usual delays caused by congestion.
MARC Penn Line train 554 is running 20 minutes late. When it turn in Perryville and becomes train 517, it will run one car short after an equipment swap in Baltimore. Also, Brunswick Line trains 870 and 890 are both running 10 minutes late.
Good morning, commuters! We’ll be keeping an eye on the roads and rails this morning, reporting any delays or issues — and we will need your help.
If you see or hear about any congestion, delays or problems, tell us in the comments section below or by tweeting @drgridlock.
Expect more clouds, heat and humidity today, according to the Capital Weather Gang. The humidity will be moderate, but it could reach the low 90s.
— An accident on eastbound I-66 before Glebe Road is blocking all eastbound lanes, with traffic only getting by on the shoulder. Delays stretch back to the Beltway.
— MARC riders: Penn Line train 554 is running at least 15 to 20 minutes late due to a mechanical issue. Camden Line train 841 is running 8 to 10 minutes late due to a signal issue. Brunswick Line train 870 is running 10 to 12 minutes late due to freight train traffic around the Brunswick station.
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