The highway travels around the Simpson Door Company factory and leaves the city before turning off Summit Road to follow the Puget Sound and Pacific Railroad.

SR 108 turns east to follow Skookum Creek but resumes its northeastern course while passing Kamilche Hill.

After crossing over the railroad at the east end of the valley, the highway enters the community of Kamilche on the Squaxin Island Reservation, passing the tribe's golf course and the Little Creek Casino Resort.

[12] The project included the installation of four bridges over the Middle and East forks of Wildcat Creek, at a cost of $14 million.

[13][14][15] A separate project to replace fish culverts with passable structures at several points along SR 108 is scheduled to begin in 2023.