Washington State Route 508

State Route 508

SR 508 is highlighted in red.
Route information
Auxiliary route of I-5
Defined by RCW 47.17.675
Maintained by WSDOT
Length: 32.84 mi[2] (52.85 km)
Existed: 1964[1] – present
Major junctions
South end: I-5 / US 12 in Napavine
North end: SR 7 in Morton
Highway system

State highways in Washington
Interstate • US • State
Former PSH • 1964 renumbering • Former SR

← SR 507 SR 509 →

State Route 508 (SR 508) is a 32.84-mile (52.85 km) long state highway located in Lewis County within the U.S. state of Washington, extending from an interchange with Interstate 5 (I-5) concurrent with U.S. Route 12 (US 12) in Napavine to SR 7 in Morton. By 1916, a road between Napavine and Cinebar was constructed on the current route of SR 508 and was signed in 1937 as Secondary State Highway 5K (SSH 5K) after being extended to Morton. SSH 5K became SR 508 in 1968 and since then, a segment in Bear Canyon has been reconstructed twice between 2007 and 2009 and a bridge over the Tilton River was reconstructed in 2009.

Contents

Route description

State Route 508 (SR 508) begins at a diamond interchange with Interstate 5 (I-5) concurrent with U.S. Route 12 (US 12) within Napavine city limits.[3] From the interchange, the highway leaves Napavine and travels southeast through an intersection with the Jackson Highway, formerly US 99,[4] to bridge and parallel the South Fork of the Newaukum River, passing Onalaska and Alpha before unparalleling the river and cotninuing east to Cinebar. East of Cinebar, the roadway starts to parallel the Tilton River through Bear Canyon to Morton, where the road becomes Main Avenue and ends at SR 7, named Second Street.[5][6][7] An estimated daily average of 5,000 motorists used the I-5 / US 12 / SR 508 interchange in 2007, making it the busiest section of the highway;[8] the SR 7 intersection was the busiest section in 1970, with an estimated daily average of 3,200 motorists.[9]

History

A road paralleling the current route of SR 508 first appeared on a map in 1916, extending from Napavine to Cinebar.[10] By 1937, the road was extended east to Morton and signed as Secondary State Highway 5K (SSH 5K) in the same year.[11][12] SSH 5K ran from a branch of Primary State Highway 5 (PSH 5) in Morton west to PSH 1 east of Napavine.[12][13] In 1964, a highway renumbering created SR 508 to replace SSH 5K.[1][14][15] Between 1968 and 2008, SR 508 between the Interstate 5 (I-5) concurrent with U.S. Route 12 (US 12) interchange and Onalaska used Forest Road and the Jackson Highway to get to Onalaska,[15] but the route was later realigned.[6] In early November 2006, heavy rainfall at Bear Canyon, located east of Cinebar,[16] resulted in erosion of a cliff on the highway that caused portions of the roadway to fall into the Tilton River.[17] Construction of the repairs began 23 April 2007 and a limited opening happened on 25 June.[18][19][20] On 27 July, the new road was opened,[21] but during heavy snowfall between 19 December and 22 December 2008 and the resulting floods in early January 2009, the area was washed out.[22] On 29 January 2009, SR 508 was reopened through Bear Canyon.[23] A bridge over the Tilton River west of Milton that was built in 1947 and three other bridges on the highway were classified as structurally deficient in 2008 and the Tilton River Bridge was partially closed in April 2009.[24][25] The bridge, like Bear Canyon, was damaged during floods in January 2009 and reopened on 11 June.[26]

Major intersections

The highway is located entirely in Lewis County.

Location Mile[2] Destinations Notes
Napavine 0.00 I-5 / US 12 – Chehalis, Kelso, Morton Western terminus; Interchange; continues west as Napavine Road
2.44 Jackson Highway – Toledo, Chehalis Former US 99
Morton 32.84 SR 7 (Second Street) – Elbe, Spanaway, Tacoma Eastern terminus; continues east as Main Avenue

References

  1. ^ a b Washington State Legislature (1970). "RCW 47.17.675: State route No. 508". http://apps.leg.wa.gov/RCW/default.aspx?cite=47.17.675. Retrieved 18 July 2009. 
  2. ^ a b Washington State Department of Transportation (2008). "State Highway Log: Planning Report, SR 2 to SR 971". http://www.wsdot.wa.gov/mapsdata/TDO/PDF_and_ZIP_Files/HwyLog2008.pdf. Retrieved 18 July 2009. 
  3. ^ Washington State Department of Transportation (9 September 2006). "SR 5 – Exit 71; Junction SR 508 / Napavine Road West". http://www.wsdot.wa.gov/mapsdata/tdo/interchange/pdfs/SR005/005X071.pdf. Retrieved 18 July 2009. 
  4. ^ University of Texas at Austin (1951). Hoquiam, 1951 (Map). 1:250,000. Cartography by United States Geological Survey. http://www.lib.utexas.edu/maps/topo/250k/txu-pclmaps-topo-us-hoquiam-1951.jpg. Retrieved 18 July 2009. 
  5. ^ Google, Inc. Google Maps – State Route 508 (Map). Cartography by Google, Inc. http://maps.google.com/maps?f=d&source=s_d&saddr=Forest+Napavine+Rd+E%2FWA-508&daddr=46.6093919,-122.5785384+to:2nd+St%2FWA-7&hl=en&geocode=FYvPxgId296s-A%3BFe8zxwIdlpmx-ClzYMlRJE6RVDHgcexy8kkkEw%3BFWZsxgIdTjq2-A&mra=ls&sll=46.583325,-122.88635&sspn=0.005353,0.009624&ie=UTF8&ll=46.548485,-122.58321&spn=0.685684,1.231842&z=10&via=1. Retrieved 18 July 2009. 
  6. ^ a b Washington State Department of Transportation (2008). Washington State Highways, 2008–2009 (Map). 1:842,000. Cartography by United States Geological Survey (2008–09 edition ed.). Section F3. http://www.wsdot.wa.gov/NR/rdonlyres/87105CAD-83A9-49A7-80F3-5719637C1E2D/0/FrontMapBig.pdf. Retrieved 18 July 2009. 
  7. ^ Washington State Department of Transportation (17 September 2004). "SR 7; Junction SR 508". http://www.wsdot.wa.gov/mapsdata/tdo/Interchange/pdfs/SR007/007X000.pdf. Retrieved 18 July 2009. 
  8. ^ Washington State Department of Transportation (2007). "2007 Annual Traffic Report". http://www.wsdot.wa.gov/mapsdata/tdo/PDF_and_ZIP_Files/Annual_Traffic_Report_2007.pdf. Retrieved 18 July 2009. 
  9. ^ Washington State Highway Commission, Department of Highways (1970). "Annual Traffic Report, 1970". Washington State Department of Transportation. pp. 189–190. http://www.wsdot.wa.gov/mapsdata/tdo/PDF_and_ZIP_Files/1970_ATR.pdf. Retrieved 18 July 2009. 
  10. ^ Washington State University (1916). Chehalis, 1916 (Map). 1:125,000. Washington 1:125,000 topographic quadrangles. Cartography by United States Geological Survey. http://content.wsulibs.wsu.edu/cgi-bin/pview.exe?CISOROOT=/maps&CISOPTR=471&CISORESTMP=/qbuild/buildplate11.html&CISOVIEWTMP=/qbuild/buildplate12.html&CISOROWS=2&CISOCOLS=5&CISOCLICK=title:subjec:creato:date:type. Retrieved 18 July 2009. 
  11. ^ Washington State University (1937). Eatonville, 1937 (Map). 1:125,000. Washington 1:125,000 topographic quadrangles. Cartography by United States Geological Survey. http://content.wsulibs.wsu.edu/cgi-bin/pview.exe?CISOROOT=/maps&CISOPTR=477&CISORESTMP=/qbuild/buildplate11.html&CISOVIEWTMP=/qbuild/buildplate12.html&CISOROWS=2&CISOCOLS=5&CISOCLICK=title:subjec:creato:date:type. Retrieved 18 July 2009. 
  12. ^ a b Washington State Legislature (18 March 1937). "Chapter 207: Classificiation of Public Highways". Session Laws of the State of Washington. Session Laws of the State of Washington (1937 edition ed.). Olympia, Washington: Washington State Legislature. p. 1004. http://books.google.com/books?id=dcQ4AAAAIAAJ. Retrieved 18 July 2009. "(j) Secondary State Highway No. 5K; beginning at Morton on Primary State Highway No. 5, thence in a westerly direction by the most feasible route by way of Onalaska to a junction with Primary State Highway No. 1 south of Chehalis." 
  13. ^ University of Texas at Austin (1958). Hoquiam, 1958 (Map). 1:250,000. Cartography by United States Geological Survey. http://www.lib.utexas.edu/maps/topo/250k/txu-pclmaps-topo-us-hoquiam-1958.jpg. Retrieved 18 July 2009. 
  14. ^ C. G. Prahl (1 December 1965). "Identification of State Highways". Washington State Highway Commission, Department of Highways. http://www.wsdot.wa.gov/NR/rdonlyres/6836215D-E301-43F3-895A-472BD2FDE86A/0/Identification.pdf. Retrieved 18 July 2009. 
  15. ^ a b University of Texas at Austin (1968). Hoquiam, 1968 (Map). 1:250,000. Cartography by United States Geological Survey. http://www.lib.utexas.edu/maps/topo/250k/txu-pclmaps-topo-us-hoquiam-1968.jpg. Retrieved 18 July 2009. 
  16. ^ Washington State Department of Transportation (2007). SR 508 – Bear Canyon Emergency Repairs (Map). Cartography by Tele Atlas. http://www.wsdot.wa.gov/Projects/SR508/BearCanyon/map.htm. Retrieved 18 July 2009. 
  17. ^ Washington State Department of Transportation (2007). "SR 508 – Bear Canyon Emergency Repairs – Complete July 2007". http://www.wsdot.wa.gov/projects/sr508/bearcanyon/. Retrieved 18 July 2009. 
  18. ^ "Design Complete, Repairs to SR 508 at Bear Canyon Begin this Spring" (Press release). Washington State Department of Transportation. 22 March 2007. http://www.wsdot.wa.gov/News/2007/03/22_SR508BearCanyon.htm. Retrieved 18 July 2009. 
  19. ^ "Contractor Selected, Emergency Repairs to SR 508 at Bear Canyon begin April 23" (Press release). Washington State Department of Transportation. 12 April 2007. http://www.wsdot.wa.gov/News/2007/04/12_SR508Repairs.htm. Retrieved 18 July 2009. 
  20. ^ "Limited Opening of SR 508 at Bear Canyon Begins June 25" (Press release). Washington State Department of Transportation. 18 June 2007. http://www.wsdot.wa.gov/News/2007/06/18_OpeningSR508BearCanyon.htm. Retrieved 18 July 2009. 
  21. ^ "SR 508 at Bear Canyon Reopens Today, Emergency Repairs Complete" (Press release). Washington State Department of Transportation. 27 July 2007. http://www.wsdot.wa.gov/News/2007/07/27_SR508RepairsComplete.htm. Retrieved 18 July 2009. 
  22. ^ "Storm recovery continues in Southwest Washington" (Press release). Washington State Department of Transportation. 15 January 2009. http://www.wsdot.wa.gov/News/2009/01/15_SouthwestWAStormRecovery.htm. Retrieved 18 July 2009. 
  23. ^ "WSDOT to reopen SR 508 at Bear Canyon late today" (Press release). Washington State Department of Transportation. 29 January 2009. http://www.wsdot.wa.gov/News/2009/01/29_SR508Reopens.htm. Retrieved 18 July 2009. 
  24. ^ "SR 508 Tilton River Bridge restricted to single-lane traffic, no overweight loads" (Press release). Washington State Department of Transportation. 9 April 2009. http://www.wsdot.wa.gov/News/2009/04/09_SR508TiltonBridgeDamage.htm. Retrieved 18 July 2009. 
  25. ^ Washington State Department of Transportation (2008). "WSDOT Structurally Deficient Bridges". p. 3. http://www.wsdot.wa.gov/NR/rdonlyres/B78C9E1A-DD7E-4187-8038-3A9E5D5E7B1B/0/2008StateSDbycounty.pdf. Retrieved 18 July 2009. 
  26. ^ "Repair work begins on SR 508 Tilton River Bridge, June 11" (Press release). Washington State Department of Transportation. 5 June 2009. http://www.wsdot.wa.gov/News/2009/06/05_SR508TiltonRiverBridgeRepairs.htm. Retrieved 18 July 2009. 

External links

Former or proposed state routes: SR 514 - SR 537 - SR 540