State Route 108 marker

State Route 108

Old Olympic Highway
SR 108 highlighted in red
Route information
Auxiliary route of US 101
Maintained by WSDOT
Length11.96 mi[1] (19.25 km)
Existed1964[2]–present
Major junctions
West end SR 8 in McCleary
East end US 101 in Kamilche
Location
CountryUnited States
StateWashington
CountiesGrays Harbor, Mason
Highway system
← SR 107→ SR 109

State Route 108 (SR 108, also known as the Old Olympic Highway)[3] is a state highway in Grays Harbor and Mason counties, of the U.S. state of Washington. It extends 20.67 miles (33.27 km) from SR 8 in the city of McCleary, east to an interchange with U.S. Route 101 (US 101) in Kamilche. The route serves as a bypass and connects McCleary with Shelton, and Port Angeles.

The highway was Secondary State Highway 9D (SSH 9D) from 1937 until 1964, which ran from McCleary to Kamilche.

Route description

State Route 108 near its western terminus near McCleary

SR 108 begins at an intersection with SR 8, an east–west expressway across the Olympic Peninsula, west of McCleary in Grays Harbor County.[4] The highway briefly travels north before turning east onto West Simpson Avenue towards the city. SR 108 passes through downtown McCleary before turning north onto Summit Road at South 3rd Street, where its business route splits to head south. 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.[5][6]

The highway and railroad travel northeast into Mason County and continues into the Kamilche Valley. 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.[6] SR 108 terminates at an interchange with US 101, which continues as a freeway towards Shelton and Olympia.[4][5]

SR 108, also named the Old Olympic Highway, functions as a bypass of SR 8 for travel between Aberdeen and the eastern Olympic Peninsula.[6] The highway is maintained by the Washington State Department of Transportation (WSDOT), who conduct an annual survey of traffic volume that is expressed in terms of annual average daily traffic (AADT), a measure of traffic volume for any average day of the year. Average daily traffic volumes on SR 108 in 2016 ranged from a minimum of 2,900 vehicles at Summit Road to a maximum of 12,000 vehicles near the US 101 interchange.[7]

History

The shield of SSH 9D.

When the Primary and Secondary Highways were formed in 1937, the current SR 108 became Secondary State Highway 9D (SSH 9D).[8] It was extended west through McCleary to the new bypass for US 410 (now SR 8), which opened in October 1962.[9] SSH 9D became SR 108 in 1964 during the 1964 highway renumbering, in which the Washington State Department of Transportation (WSDOT) replaced the previous system of Primary and Secondary Highways with a new system called State Routes, which is still in use today.[10][11]

Originally, a 1.25 mile northern bypass of McCleary, extending northeast from the existing SR 108 Elma McCleary Rd Intersection to the SR 108 Summit Road Intersection was proposed during construction of Secondary State Highway 9D. This route would have been a limited access, full control 2-lane highway. However, beyond establishing a roadway centerline, no further action has been taken to complete this bypass.

In early 2017, the intersection of SR 8 and SR 108 was temporarily closed for two years for a fish passage barrier replacement.[12] The project included the installation of four bridges over the Middle and East forks of Wildcat Creek, at a cost of $14 million. The intersection reopened in October 2018.[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.[16]

Business route

Business plate.svg

State Route 108 Business marker

State Route 108 Business

LocationMcCleary, Washington
Length1.3 mi[17] (2.1 km)

SR 108 has a short business route serving McCleary, running concurrent to SR 108 on West Simpson Avenue before turning south on South 3rd Street towards an interchange with SR 8.[17]

Major intersections

CountyLocationmi[1]kmDestinationsNotes
Grays HarborMcCleary0.000.00 SR 8 – Elma, OlympiaWest end of SR 108 Business overlap
1.111.79

 SR 108 Bus. east (South 3rd Street)		East end of SR 108 Business overlap
MasonKamilche11.9619.25 US 101 – Port Angeles, Olympia
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References

  1. 1 2 Multimodal Planning Division (January 4, 2021). State Highway Log Planning Report 2020, SR 2 to SR 971 (PDF) (Report). Washington State Department of Transportation. pp. 932–935. Retrieved September 26, 2021.
  2. ↑ Washington State Legislature. "RCW 47.17.195: State Route 108". Retrieved November 10, 2008.
  3. ↑ Washington State Department of Transportation (May 1, 2007). "SR 101/SR 108/Old Olympic Highway" (PDF). Retrieved November 10, 2008.
  4. 1 2 Washington State Department of Transportation (2014). Washington State Highways, 2014–2015 (PDF) (Map). 1:842,000. Olympia: Washington State Department of Transportation. Retrieved September 26, 2021.
  5. 1 2 Google (September 26, 2021). "State Route 108" (Map). Google Maps. Google. Retrieved September 26, 2021.
  6. 1 2 3 "Corridor Sketch Summary – SR 108: SR 8 Jct (McCleary) to US 101 Jct (Kamilche)" (PDF). Washington State Department of Transportation. March 28, 2018. Retrieved September 26, 2021.
  7. ↑ 2016 Annual Traffic Report (PDF) (Report). Washington State Department of Transportation. 2017. pp. 140–141. Retrieved September 26, 2021.
  8. ↑ Washington State Legislature (1937). "Chapter 190". Session Laws of the State of Washington. Session Laws of the State of Washington (1937 ed.). Olympia, Washington: Washington State Legislature. Retrieved October 19, 2008.
  9. ↑ "Gov. Rosellini; Rep. Hansen in Ceremony". The News Tribune. October 7, 1962. p. A4. Retrieved March 25, 2022 – via Newspapers.com.
  10. ↑ C. G. Prahl, Washington State Highway Commission (December 1, 1965). "Identification of State Highways, Part 1" (PDF).
  11. ↑ C. G. Prahl, Washington State Highway Commission (December 1, 1965). "Identification of State Highways, Part 2" (PDF).
  12. ↑ "State Route 8/State Route 108 intersection closes soon for two years". The Daily World. March 23, 2017. Retrieved September 26, 2021.
  13. ↑ "SR 8 - Middle and East Forks Wildcat Creek - Remove Fish Barriers - Complete October 2018". Washington State Department of Transportation. Retrieved September 26, 2021.
  14. ↑ Haviland, Dave (May 25, 2021). "Major highway projects starting in 2023". The Daily World. Retrieved September 26, 2021.
  15. ↑ "SR8 construction completed six months ahead of schedule". The Daily World. October 26, 2018. Retrieved September 26, 2021.
  16. ↑ "SR 108 - US 101/Mason and Thurston Co Fish Barriers - Remove Fish Barriers". Washington State Department of Transportation. Retrieved September 26, 2021.
  17. 1 2 Google (September 26, 2021). "State Route 108 Business" (Map). Google Maps. Google. Retrieved September 26, 2021.
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