Issaquah-Hobart Road westbound to State Route 18 was blocked due to a collision involving a dump truck and a car. The road has reopened to traffic, but drivers are asked to drive slowly through the area.
A semi truck was driving westbound from Tiger Mountain summit and had some brake issues, according to Trooper Chris Webb.
The semi struck a car and the truck's driver was not wearing a seat belt and was ejected. Trooper Webb said all the injuries are non-life-threatening.
The congestion was complicated by some utility work near the hiking point on Issaquah-Hobart Road.