UPDATE, 7:50 p.m. | Highway 99 has reopened for traffic following the collision at East Marginal Way South and South Nevada Street.
The closure, combined with traffic going to the Mariners game at 7:10 p.m., caused the significant congestion, the Washington State Department of Transportation said.
UPDATE, 7:20 p.m. | The accident on East Marginal Way South has been cleared, according to the Seattle Department of Transportation, which has just tweeted: “SPD getting ready to clear traffic.”
EARLIER POST | Three people were injured in a two-vehicle collision in Seattle’s Sodo district this afternoon that tied up the evening commute for hours.
A driver had to be cut from a car involved in the collision, which occurred around 1:45 p.m. near East Marginal Way South and South Nevada Street, according to the Seattle Fire Department. Three people were taken to Harborview Medical Center; the first driver was critical condition, the other driver was in serious condition and a passenger was in stable condition.
Southbound Marginal Way — Highway 99 in that area of town — remain closed for hours, according to the Seattle Police Department.
Police blocked southbound Highway 99 miles north — at the Battery Street Tunnel — and diverted traffic onto Interstate 5 and elsewhere via Denny Way. By 6:30 p.m., southbound traffic on Aurora Avenue North was backed up north of the Aurora Bridge, according to the Seattle Department of Transportation.