Beginning at an interchange with U.S. Route 101 (US 101), the highway travels northeast to terminate at Marine Drive.

SR 117 begins as the Tumwater Truck Road at an interchange with U.S. Route 101 (US 101) in southwest Port Angeles.

[9] It was constructed at a cost of $250,000, shared with the county and state governments, along the existing Tumwater Canyon.

[3] During a severe winter storm on November 27, 2006, the Port Angeles Police Department closed both ends of the highway due to treacherous conditions.

[12] On December 15, 2006, a wind storm caused trees near the roadway to block the highway and the route had to be shut down.