Washington State Route 103

State Route 103 (SR 103) is a 19.97-mile-long (32.14 km) state highway serving the Long Beach Peninsula, located within Pacific County in the U.S. state of Washington. The highway travels north from U.S. Route 101 (US 101) in Seaview through Long Beach and Ocean Park to the southern entrance of Leadbetter Point State Park. SR 103 was created in the 1964 highway renumbering, replacing the earlier Secondary State Highway 12A (SSH 12A) that was created in 1937 to serve Long Beach and Ocean Park, later extended north in 1991 to serve Leadbetter Point State Park.

State Route 103
SR 103 highlighted in red
Route information
Auxiliary route of US 101
Defined by RCW 47.17.170
Maintained by WSDOT
Length19.97 mi[1] (32.14 km)
Existed1964[2]–present
Tourist
routes		Lewis and Clark Trail Scenic Byway
Major junctions
South end US 101 in Seaview
North endLeadbetter Point State Park
Location
CountiesPacific
Highway system
← SR 102→ SR 104

Route description
SR 103 traveling north through Downtown Long Beach as Pacific Avenue.

SR 103 begins as Pacific Way at an intersection with 40th Street, signed as US 101, in Seaview.[3] The highway travels north through the city of Long Beach as Pacific Avenue and enters rural Pacific County on the coast of the Pacific Ocean,[4] passing Briscoe Lake and Loomis Lake.[5][6] SR 103 travels through Oceanside and Ocean Park, turning east onto Bay Avenue towards Willapa Bay,[7][8] before continuing north on Sandridge Road through Nahcotta and Oysterville.[9][10] The highway turns northwest onto Stackpole Road and ends at the southern entrance of Leadbetter Point State Park,[11] west of Stackpole Harbor.[1][12]

Sign for Washington State Route 103, Seaview, Washington

Every year, the Washington State Department of Transportation (WSDOT) conducts a series of surveys on its highways in the state to measure traffic volume. This is expressed in terms of annual average daily traffic (AADT), which is a measure of traffic volume for any average day of the year. In 2011, WSDOT calculated that the busiest section of the highway was at 10th Street in Downtown Long Beach, serving 7,900 vehicles, while the least busiest section was the entrance to Leadbetter Point State Park, serving 270 vehicles.[13]

History

SSH 12A was established in 1937 during the creation of the primary and secondary state highway system, traveling north from US 101 in Seaview through Long Beach to Ocean Park.[14][15] During the 1964 highway renumbering, SR 103 replaced SSH 12A on its 11.09-mile-long (17.85 km) route,[16][17] serving the Long Beach Peninsula.[18] SR 103 was extended further north to serve Leadbetter Point State Park in 1991, increasing the total distance of the highway to the current 19.97-mile-long (32.14 km) route.[1][19][20]

Major intersections

The entire highway is in Pacific County.

Locationmi[1]kmDestinationsNotes
Seaview0.000.00 US 101 – Ilwaco, Raymond, LongviewSouthern terminus
Leadbetter Point State Park19.9732.14 Park entranceNorthern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References
  1. Staff (2012), State Highway Log: Planning Report 2011, SR 2 to SR 971 (PDF), Washington State Department of Transportation, pp. 966–971, retrieved February 11, 2013
  2. "47.17.170: State route No. 103", Revised Code of Washington, Washington State Legislature, 1991 [1970], retrieved February 11, 2013
  3. "Feature Detail Report for: Seaview", Geographic Names Information System, United States Geological Survey, September 10, 1979, retrieved February 11, 2013
  4. "Feature Detail Report for: Long Beach", Geographic Names Information System, United States Geological Survey, September 10, 1979, retrieved February 11, 2013
  5. "Feature Detail Report for: Briscoe Lake", Geographic Names Information System, United States Geological Survey, September 10, 1979, retrieved February 11, 2013
  6. "Feature Detail Report for: Loomis Lake", Geographic Names Information System, United States Geological Survey, September 10, 1979, retrieved February 11, 2013
  7. "Feature Detail Report for: Oceanside", Geographic Names Information System, United States Geological Survey, September 10, 1979, retrieved February 11, 2013
  8. "Feature Detail Report for: Ocean Park", Geographic Names Information System, United States Geological Survey, September 10, 1979, retrieved February 11, 2013
  9. "Feature Detail Report for: Nahcotta", Geographic Names Information System, United States Geological Survey, September 10, 1979, retrieved February 11, 2013
  10. "Feature Detail Report for: Oysterville", Geographic Names Information System, United States Geological Survey, September 10, 1979, retrieved February 11, 2013
  11. Leadbetter Point State Park (PDF) (Map). Washington State Parks. Retrieved February 11, 2013.
  12. Google (November 22, 2010). "State Route 103" (Map). Google Maps. Google. Retrieved November 22, 2010.
  13. Staff (2011), 2011 Annual Traffic Report (PDF), Washington State Department of Transportation, pp. 132–133, retrieved February 11, 2013
  14. Washington State Legislature (March 18, 1937), "Chapter 207: Classification of Public Highways", Session Laws of the State of Washington, Session Laws of the State of Washington (1937 ed.), Olympia, Washington: Washington State Legislature, p. 1008, retrieved February 11, 2013, (a) Secondary State Highway No. 12A; beginning at a junction with Primary State Highway No. 12 in the vicinity south of Seaview, thence in a northerly direction by the most feasible route by way of Seaview and Long Beach to Ocean Park.
  15. Copalis Beach, 1957 (JPG) (Map). 1:250,000. United States Geological Survey. 1957. Retrieved February 11, 2013.
  16. Prahl, C. G. (December 1, 1965), Identification of State Highways (PDF), Washington State Highway Commission, Department of Highways, retrieved February 11, 2013
  17. Staff (1970), Annual Traffic Report, 1970 (PDF), Washington State Highway Commission, Department of Highways, p. 122, retrieved February 11, 2013
  18. Copalis Beach, 1968 (JPG) (Map). 1:250,000. United States Geological Survey. 1968. Retrieved February 11, 2013.
  19. Washington State Legislature (May 21, 1991), "Chapter 342: Engrossed Senate Bill 5801", Session Laws of the State of Washington, Session Laws of the State of Washington (1991 ed.), Olympia, Washington: Washington State Legislature, retrieved February 11, 2013
  20. Washington State Highways, 2011–2012 (PDF) (Map). 1:842,000. Washington State Department of Transportation. 2011. Retrieved February 11, 2013.

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