Oregon Route 3
Route 3 highlighted in red
Route information
Maintained by ODOT
Length	43.13 mi[1] (69.41 km)
Existed	1932–present
Component highways	Enterprise–Lewiston Highway No. 11
Major junctions
South end	OR 82 in Enterprise
North end	SR 129 near Flora
Location
Country	United States
State	Oregon
Counties	Wallowa
Highway system
Oregon Highways Interstate US State Named Scenic
← US 730 → I-5

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.

History

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]

Location[1]	Milepoint[1]	Destinations	Notes
Enterprise	43.19	OR 82 – Elgin, La Grande, Joseph, Wallowa Lake
​	23.49	Summit, elevation 4,693 feet (1,430 m)
​	13.37	Joseph Creek Canyon viewpoint
​	0.00	SR 129	Continuation into Washington
1.000 mi = 1.609 km; 1.000 km = 0.621 mi