Washington State Route 283

State Route 283 (SR 283) is a state highway serving rural Grant County in the U.S. state of Washington. The highway travels for 15 miles (24 km) in a northeasterly direction between George and Ephrata, traveling from SR 281 Spur at its interchange with Interstate 90 (I-90) to SR 28. SR 283 was created during the 1964 highway renumbering as the successor to a branch of Primary State Highway 7 (PSH 7), codified in 1949 and built in the 1950s.

State Route 283
SR 283 is highlighted in red.
Route information
Auxiliary route of SR 28
Defined by RCW 47.17.515
Maintained by WSDOT
Length14.86 mi[1] (23.91 km)
Existed1964[2]–present
Major junctions
South end
SR 281 Spur near George
North end SR 28 near Ephrata
Location
CountiesGrant
Highway system
← SR 282→ SR 285

Route description

SR 283 begins at an intersection with SR 281 at its interchange with I-90 northeast of George.[3] The two-lane highway travels due northeast through farmland in rural Grant County, passing Grigg Farm Airport and crossing over the Winchester Wasteway,[4][5] before ending at an intersection with SR 28 southwest of Ephrata.[6][7]

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 average annual daily traffic (AADT), which is a measure of traffic volume for any average day of the year. In 2011, WSDOT calculated that between 2,100 and 2,500 vehicles per day used the highway to travel between George and Ephrata.[8]

History

SR 283 was created during the 1964 highway renumbering as the successor to the George–Ephrata branch of PSH 7.[9][10] The branch, created in 1949 to connect Ephrata to U.S. Route 10 (US 10),[11] was built and paved as a two-lane highway in the 1950s.[12] The bridge over Winchester Wasteway was built in 1953 and replaced with a newer concrete bridge that opened in April 2006.[13]

Major intersections

The entire highway is in Grant County.

Locationmi[1]kmDestinationsNotes
​0.000.00
SR 281 Spur to I-90 – Seattle, Spokane, Quincy		Southern terminus
​14.8623.91 SR 28 – Ephrata, Soap Lake, QuincyNorthern 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. 1319–1320, retrieved February 5, 2013
  2. "47.17.515: State route No. 283", Revised Code of Washington, Washington State Legislature, 1970, retrieved February 5, 2013
  3. SR 90 - Exit 151: Junction SR 281 SP Burke (PDF), Washington State Department of Transportation, March 23, 2007, retrieved February 5, 2013
  4. "Feature Detail Report for: Grigg Farm Airport", Geographic Names Information System, United States Geological Survey, March 1, 1990, retrieved February 5, 2013
  5. "Feature Detail Report for: Winchester Wasteway", Geographic Names Information System, United States Geological Survey, September 10, 1979, retrieved February 5, 2013
  6. SR 28: Junction SR 283 (PDF), Washington State Department of Transportation, November 24, 2009, retrieved February 5, 2013
  7. Google (February 5, 2013). "State Route 283" (Map). Google Maps. Google. Retrieved February 5, 2013.
  8. Staff (2011), 2011 Annual Traffic Report (PDF), Washington State Department of Transportation, pp. 166–167, retrieved February 5, 2013
  9. Prahl, C. G. (December 1, 1965), Identification of State Highways (PDF), Washington State Highway Commission, Department of Highways, retrieved February 5, 2013
  10. Ritzville, 1965 (JPG) (Map). 1:250,000. United States Geological Survey. 1965. Retrieved February 5, 2013.
  11. Washington State Legislature (March 22, 1949), "Chapter 225: Establishing of Primary and Secondary State Highways", Session Laws of the State of Washington, Session Laws of the State of Washington (1949 ed.), Olympia, Washington: Washington State Legislature, p. 773, retrieved February 5, 2013, Section 7. A primary state highway to be known as Primary State Highway No. 7, or the North Central Highway, is hereby established according to description as follows: Beginning at a junction with Primary State Highway No. 18 in the vicinity of Burke Junction, thence in a northeasterly direction by the most feasible route to a junction with Primary State Highway No. 7, as herein described, in the vicinity west of Ephrata.
  12. Ritzville, 1953 (JPG) (Map). 1:250,000. United States Geological Survey. 1953. Retrieved February 5, 2013.
  13. Fleming, Mike (April 28, 2006), SR 283 - Winchester Wasteway - Bridge Deck Repair - Complete April 2006, Washington State Department of Transportation, retrieved February 5, 2013

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