Oregon Route 339
state highway in Umatilla County, Oregon, United States
Oregon Route 339 (OR 339) is an Oregon state highway running from the Washington state line near Ferndale to Milton-Freewater. OR 339 is known as the Freewater Highway No. 339 (see Oregon highways and routes). It is 3.43 miles (5.52 km) long and runs north–south, entirely within Umatilla County.
OR 339 was established in 2003 as part of Oregon's project to assign route numbers to highways that previously were not assigned.
Route description
OR 339 begins at an intersection with State Line Road approximately one and one half miles north of Ferndale, at the Washington state line, and heads south through Ferndale and Sunnyside. Approximately one-half-mile south of Sunnyside, OR 339 intersects OR 332. OR 339 ends at the Milton-Freewater northern city limit.
History
OR 339 was assigned to the Freewater Highway in 2003.
Major intersections
The entire route is in Umatilla County.
This brief starts where responsible research should: with the source description of “Oregon Route 339” as state highway in Umatilla County, Oregon, United States. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the places & architecture register because the source frames it as state highway in Umatilla County, Oregon, United States. Its deeper value depends on whether names, dates, institutions and citations support that framing.
The strongest evidence will usually combine a dated visual record with documents produced by the authority responsible for the place. The source revision retrieved here is dated Aug 2, 2026. The linked authority identifier is Q2494314. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2003.
Architectural summaries often privilege surviving fabric and can understate demolished phases, contested use or displaced communities. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
- Historic place names
- Jurisdictional context
- Routes into maps and plans
Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
- Establish the record: confirm the title “Oregon Route 339”, its source revision and the description used here.
- Expand the search: follow Oregon Route 339 primary sources, Oregon Route 339 archive and Oregon research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Oregon Route 339”?
- What physical evidence or contemporary plan supports the description?
- Which authority defined the place, boundary or structure at the relevant date?
Search terms from this dossier
This entry incorporates text from “Oregon Route 339” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.