Traffic around the Beltway slowed considerably after a deadly collision between a tractor-trailer and several other vehicles ignited a blaze around 11 a.m. on the Woodrow Wilson Bridge, shutting down a portion of the bridge for hours. The driver of the tractor-trailer was killed, and thru lanes reopened just before 11 p.m.
Local lanes going from Virginia toward Maryland reopened by 2 p.m.
So, how could a crash that happened in the morning still impact the evening commute?
“I can’t explain why things are the way they are,” said Bob Marbourg in the WTOP Traffic Center. “We had the Wilson Bridge accident, but there are more people on the road at once going nowhere than normally would be.”
There were many forces that acted against drivers on Wednesday.
An extended bottleneck on the region’s busiest bridge sent drivers detouring through the city on I-395 and I-295. The Nationals game led to increased volumes on the same routes later in the day. And rain may have slowed the pace across the entire region.
All of these events caused traffic delays to ripple across the District, Arlington and Alexandria, and the onslaught of afternoon rush hour ensured the effects would stay put.
“The ripples in the pond were large and as they clashed together, the waters remained choppy for hours into the late evening,” said WTOP Traffic Reporter Dave Dildine.
Marbourg called Wednesday afternoon’s traffic conditions “a rush hour of extraordinary proportions,” adding, “It is extraordinarily heavy not only on the interstate but on the surface streets.”
A number of D.C.-area drivers took to social media to air out their grievances.
And, just before 4:30 p.m., Reagan National Airport started tweeting about heavy traffic on airport roadways and advised travelers headed to the airport to get there using Metro. Airport garage exits were also backed up, with cars bumper-to-bumper. But, by 7:30 p.m., the airport tweeted that traffic was looking much better, except for ramps to the northbound George Washington Parkway.
Using @Metrorailinfo to get here may save time. Traffic is heavily congested on and off the airport due to a regional traffic issue affecting area roads. (Info: 6/20 at 5:45p) pic.twitter.com/ABs24Edb6Q
Marbourg said that he and other WTOP Traffic reporters have been speculating on why there were so many people on the road at the same time, but he didn’t have concrete answers. He wondered if people’s reliance on “being guided electronically” through phone apps or GPS may have put everyone on the same path, or perhaps, the decision to leave early was unanimous Wednesday.
“The overall bailout volume is really an extreme case,” Marbourg said.
He added that weather wasn’t a particular factor in Wednesday’s traffic delays, but the traffic pattern made it seem like people were leaving early on a snow day — except, of course, without the snow.
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