10:53 update: WSDOT has reopened SR 169.

9:04 a.m. original article: SR 169 is fully closed at the Southeast Green Valley Road south of Black Diamond due to a collision.

The Washington State Patrol is investigation, and a trooper noted the incident involved a car and a semi truck, and the driver of the car was transported to Harborview Hospital.

According to the Washington State Department of Transportation, there is no estimate time for reopening, and drivers should rely on alternate routes for the time being.

People can receive real-time travel information via the WSDOT mobile app and the real-time travel map.