Oregon Route 3

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Oregon Route 3

Route 3 highlighted in red
Route information
Maintained by ODOT
Length43.13 mi[1] (69.41 km)
Enterprise–Lewiston Highway No. 11
Major junctions
South end OR 82 in Enterprise
North end SR 129 near Flora
CountryUnited States
Highway system
US 730 I-5
Oregon Route 3

Oregon Route 3 is a state highway in the U.S. state of Oregon. It is located entirely within Wallowa County. OR 3 is the lowest numbered highway in the state of Oregon, of any type (state, federal, or Interstate). OR 3 traverses the Enterprise–Lewiston Highway No. 11 of the Oregon state highway system.[2]

Route description

OR 3 has its southern terminus at a junction with Oregon Route 82 in the city of Enterprise. It runs north/south, passing near the small community of Flora. It terminates at the Washington border. The route continues north through Anatone and Asotin, Washington and into Clarkston, Washington as State Route 129. From Clarkston, U.S. Route 12 provides direct access to Lewiston, Idaho.


An earlier routing passed through the community of Paradise, located east of the highway's current location.[3] The highway was numbered to match Washington State Route 129, which had been a branch of Primary State Highway 3, and its predecessor State Road 3, from 1923 to 1964.

Major intersections

Milepoints are as reported by ODOT and do not necessarily reflect current mileage. Z indicates overlapping mileage due to construction longer than established route, and – indicates negative mileage behind established beginning point.[4] Segments that are locally maintained may be omitted. For routes traversing multiple named state highways, each milepoint is preceded by the corresponding state highway number. The entire route is in Wallowa County. [1]

Enterprise43.19 OR 82 – Elgin, La Grande, Joseph, Wallowa Lake
23.49Summit, elevation 4,693 feet (1,430 m)
13.37Joseph Creek Canyon viewpoint
0.00 SR 129Continuation into Washington
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  1. ^ a b c Road Inventory and Classification Services Unit. "Straightline Charts". Transportation Development Division, Oregon Department of Transportation. Retrieved April 25, 2015.
  2. ^ Road Inventory and Classification Services Unit. "2012 Cross Reference Table of Highway Route Number to State Highway Number" (PDF). Transportation Development Division, Oregon Department of Transportation. Retrieved September 5, 2015.
  3. ^ Starmont, Leon (January 26, 1947). "Wallowa Here We Come!". The Spokesman-Review. Retrieved 2009-12-17.
  4. ^ Road Inventory and Classification Services (July 2017). "Straightline Chart Legend" (PDF). Oregon Department of Transportation. Retrieved April 7, 2018.