Washington State Route 129

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State Route 129 marker

State Route 129

Map
A map of Asotin County with SR 129 highlighted in red
Route information
Maintained by WSDOT
Length42.55 mi[1] (68.48 km)
Existed1964–present
Major junctions
South end OR 3 at Oregon state line near Anatone
North end US 12 in Clarkston
Location
CountryUnited States
StateWashington
Highway system
← SR 128→ SR 131

State Route 129 (SR 129) is a state highway in Asotin County, Washington, United States. It travels north–south at the southeastern corner of the state, connecting with Oregon Route 3 (OR 3) at the Oregon state line south of Anatone. The 43-mile (69 km) highway then follows the Snake River, which marks the Idaho state border, north to Clarkston and terminates at U.S. Route 12 (US 12). SR 129 also has a short spur route that connects to a separate intersection with US 12 in Clarkston.

The highway primarily serves as a connection between Clarkston,

Primary State Highway 3 in the 1940s. During the 1964 state highway renumbering, the Clarkston branch of PSH 3 was split into SR 128
and SR 129.

Route description

SR 129 near Fields Spring State Park

SR 129 begins at the Oregon state line near Flora, Oregon, as a continuation of OR 3, which travels south towards Enterprise, the seat of Wallowa County, Oregon.[2] The highway travels north along the east side of Buford Canyon and makes a switchback turn to the south to cross Buford Canyon on the north side of the state line. SR 129 then makes another switchback turn and travels north along the west side of Buford Creek, following the canyon below Buford Ridge. After approximately 3 miles (5 km), the highway crosses over the Grande Ronde River and enters the bottom of Rattlesnake Canyon, which it follows northeast towards a fork in the stream. SR 129 then turns south at a switchback and begins ascending from the canyon floor on Rattlesnake Grade, making nine turns and reaching an elevation of 2,400 feet (730 m).[3][4][5]

The highway continues northeast along a ridge overlooking Rattlesnake Creek and passes through a forested area around

city limits.[3][4]

SR 129 enters Asotin near the

bicycle path towards Clarkston,[8] passing downhill from residential areas on the west and the Lewiston–Nez Perce County Airport to the east in Idaho.[3][4]

At the south end of Clarkston near

dogbone interchange on the western approach to the Southway Bridge. Fleshman Way passes over SR 129 and continues west towards former SR 128 and east across the Snake River to Lewiston, Idaho.[9] The highway continues north from the interchange and enters Clarkston city limits, becoming 5th Street before cutting across to 6th Street. The street passes through downtown Clarkston and splits from 6th Street to follow Diagonal Street as it runs four blocks northeast towards US 12. SR 129 terminates a half-block from the Idaho state line at the intersection with US 12, which provides eastbound connections to downtown Lewiston on Bridge Street; the remaining two-block section of 6th Street is signed as SR 129 Spur and provides connections to westbound US 12.[3][10]

SR 129 is the southeasternmost highway in Washington state and is maintained by the

shoulder, and has a posted speed limit of 50 to 55 miles per hour (80 to 89 km/h) outside of towns and cities.[1] WSDOT conducts an annual survey on state highways to measure traffic volume in terms of annual average daily traffic. Average traffic volumes on SR 129 in 2016 ranged from a minimum of 180 vehicles near the Oregon state line to a maximum of 9,800 in downtown Clarkston.[12]

History

The road connecting Asotin and Clarkston along the Snake River was constructed by the early 1910s and added to the state highway system in 1923 as a branch of State Road 3.

highway renumbering.[19]

The

U.S. Army Corps of Engineers and is maintained by the Asotin and Nez Perce county governments.[20][21] The bridge's western approach originally terminated SR 129 until Fleshman Way was completed in October 1997.[22][23] The interchange with SR 129 was reconstructed by the Asotin county government in 2017 at a cost of $4.5 million, adding two roundabouts to replace dangerous ramps.[24]

Spur route

Spur plate.svg

State Route 129 Spur marker

State Route 129 Spur

LocationClarkston
Length0.25 mi[1] (400 m)
Existed1970–present

SR 129 has a short

average daily traffic of 2,100 to 2,500 vehicles, according to a WSDOT survey conducted in 2016.[12]

Major intersections

The entire highway is in Asotin County.

Locationmi[1]kmDestinationsNotes
​0.000.00 OR 3 – EnterpriseContinuation beyond Oregon state line
​40.8465.73Fleshman Way (Southway Bridge) – LewistonInterchange
Clarkston42.1767.87


 SR 129 Spur to US 12 west – Walla Walla
42.5568.48
 US 12 east – Lewiston		Northern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References

  1. ^ a b c d e Multimodal Planning Division (January 3, 2018). State Highway Log Planning Report 2017, SR 2 to SR 971 (PDF) (Report). Washington State Department of Transportation. pp. 977–982. Retrieved November 23, 2018.
  2. ^ Oregon 2017–2019 Official State Map (PDF) (Map). Oregon Department of Transportation. March 2017. Retrieved November 25, 2018.
  3. ^ a b c d Google (November 23, 2018). "State Route 129" (Map). Google Maps. Google. Retrieved November 23, 2018.
  4. ^ a b c Clarkston, Wash.–Idaho–Oregon (Topographic map). 1:100,000. United States Geological Survey. 1981. Retrieved November 23, 2018.
  5. ^ Cockle, Richard (September 13, 2010). "Steep, scenic Rattlesnake Grade challenges Cycle Oregon riders". The Oregonian. Retrieved November 23, 2018.
  6. Lewiston Tribune
    . July 28, 1995. Retrieved November 23, 2018.
  7. ^ "Corridor Sketch Summary – SR 129: Oregon State Line to 1st St/Washington St Int. (Asotin)" (PDF). Washington State Department of Transportation. March 29, 2018. Retrieved November 25, 2018.
  8. ^ Lewiston, ID and Clarkston & Asotin, WA Bicycle Travel Guide & Map (PDF) (Map). Visit Lewis Clark Valley. November 2015. Retrieved November 23, 2018.
  9. ^ "SR 129: Junction Southway Bridge/Fleshman Way" (PDF). Washington State Department of Transportation. February 14, 2018. Retrieved November 23, 2018.
  10. ^ a b "SR 12: Junction SR 129/SR 129 Spur 6th Street" (PDF). Washington State Department of Transportation. October 13, 2011. Retrieved November 23, 2018.
  11. ^ Washington State Department of Transportation (2014). Washington State Highways, 2014–2015 (PDF) (Map). Olympia: Washington State Department of Transportation. Retrieved November 23, 2018.
  12. ^ a b 2016 Annual Traffic Report (PDF) (Report). Washington State Department of Transportation. 2017. pp. 146–147. Retrieved November 23, 2018.
  13. Washington State Archives
    .
  14. ^ "Chapter 185: Primary and Secondary State Highways" (PDF). Session Laws of the State of Washington, 1923. Washington State Legislature. March 19, 1923. p. 628. Retrieved December 14, 2018.
  15. ^ "Chapter 190: Establishment of Primary State Highways" (PDF). Session Laws of the State of Washington, Twenty-Fifth Session. Washington State Legislature. March 17, 1937. p. 934. Archived from the original (PDF) on February 11, 2017. Retrieved December 14, 2018.
  16. ^ Rand McNally Official 1925 Auto Trails Map of Washington and Oregon (Map). 1:1,077,120. Rand McNally. 1925. Retrieved November 23, 2018 – via David Rumsey Historical Map Collection.
  17. Spokesman-Review
    . p. 3. Retrieved November 23, 2018 – via Google News Archive.
  18. ^ "National Register of Historic Places Registration Form: Grande Ronde River Bridge (WSDOT 129/2)". National Park Service. February 13, 1995. p. 5. Retrieved September 11, 2021.
  19. Washington State Highway Commission. December 1, 1965. Archived from the original
    (PDF) on February 17, 2017. Retrieved September 25, 2008.
  20. ^ "Southway Bridge Alternative Analysis Report". Lewis–Clark Metropolitan Planning Organization. September 2016. p. 2. Retrieved December 14, 2018.
  21. ^ Sandaine, Kerri (October 16, 2007). "Southway Bridge interchange redesign goals are taking shape". Lewiston Tribune. Retrieved December 14, 2018.
  22. ^ Williams, Elaine (May 28, 1997). "The road to Fleshman Way has been smooth; Clarkston project is on schedule". Lewiston Tribune. Retrieved December 14, 2018.
  23. ^ "Fleshman Way to open with ceremony". Lewiston Tribune. October 17, 1997. Retrieved December 14, 2018.
  24. ^ Sandaine, Kerri (April 16, 2017). "Fleshman Way work set to start Monday". Lewiston Tribune. Retrieved December 14, 2018.

External links

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