Oregon Route 331
|Maintained by ODOT|
|Length:||4.84 mi (7.79 km)|
|Existed:||2003 – present|
|South end:||I‑84 / US 30 near Mission|
|North end:||OR 11 near Mission|
Oregon Route 331 is an Oregon state highway running from OR 11 near Mission to Interstate 84 near Mission. OR 331 is known as the Umatilla Mission Highway No. 331 (see Oregon highways and routes). It is 4.84 miles (7.79 km) long and runs north–south, entirely within Umatilla County.
OR 331 was established in 2003 as part of Oregon's project to assign route numbers to highways that previously were not assigned.
OR 331 begins at an intersection with OR 11 about four miles (6 km) northeast of Pendleton and heads south onto the Umatilla Indian Reservation, through Mission, to an intersection with Interstate 84 and US 30, where it ends.
OR 331 was assigned to the Umatilla Mission Highway in 2003.
|0.00||Near Mission||OR 11|
|4.84||Near Mission||Interstate 84 and US 30|
- Oregon Department of Transportation, Descriptions of US and Oregon Routes, http://www.oregon.gov/ODOT/HWY/TRAFFIC/TEOS_Publications/PDF/Descriptions_of_US_and_Oregon_Routes.pdf, page 29.
- Oregon Department of Transportation, Umatilla Mission Highway No. 331, ftp://ftp.odot.state.or.us/tdb/trandata/maps/slchart_pdfs_1980_to_2002/Hwy331_2001.pdf