Friday morning's commute was a traffic nightmare for those traveling southbound on Interstate 95.
The southbound lanes were closed near mile marker 133 in Stafford County due to a crash between two tractor-trailers, which happened around 5 a.m.
Neither driver was injured, but one vehicle was carrying barrels of phosphoric acid, an organic corrosive liquid. Several barrels fell into the roadway and at least one spilled, authorities said. The lanes remained closed for just over six hours as hazmat crews cleaned the roadway.
Driver Lee McKenna of Alexandria called the experience "torturous," adding, "We were behind a tractor trailer that never moved."
Waitress Anne Johnson got caught in the mess when she left work.
"Two exits down off I-95, got here about 9. So two hours to go two exits ... yes, two hours."
It took a couple traveling from N.Y. to a college graduation in South Carolina an hour and a half just to go 15 miles.
Jim Mandato of New York laughed, "You not only cross your fingers, you cross your legs when you get stuck like that."
The stretch of interstate finally reopened a little after 11 a.m., but delays lingered well into the day.
The cause of the crash is under investigation.