Interstate 205 (Oregon–Washington)
Auxiliary Interstate Highway in Oregon and Washington in the United States
Interstate 205 (I-205) is an auxiliary Interstate Highway in the Portland metropolitan area of Oregon and Washington, United States. The north–south freeway serves as a bypass route of I-5 along the east side of Portland, Oregon, and Vancouver, Washington. It intersects several major highways and serves Portland International Airport.
The freeway is 37 miles (60 km) long and connects to I-5 at both of its termini: to the south in Tualatin, Oregon, and to the north in Salmon Creek, Washington. I-205 is named the Veterans Memorial Highway and East Portland Freeway No. 64 in Oregon (see Oregon highways and routes). From Oregon City to Vancouver, the corridor is paralleled by a multi-use bicycle and pedestrian trail, as well as portions of the MAX Light Rail system between Clackamas and northeastern Portland.
A freeway to serve as an eastern bypass of Portland and Vancouver was conceived in a 1943 plan for the area, and in the 1950s was included in the federal government's preliminary plans for the Interstate Highway System. In 1958, the number 205 was assigned as the designation for the eastern bypass; the Oregon state government initially planned it to travel east through Lake Oswego and close to inner neighborhoods of Portland, but protests from several communities led to the route of I-205 being moved further east and south into other areas of Clackamas County.
Construction began in 1967 with work on the Abernethy Bridge over the Willamette River, which opened in 1970.
Begin with the source’s own compact description: “Interstate 205 (Oregon–Washington)” is auxiliary Interstate Highway in Oregon and Washington in the United States. The dossier treats that line as a proposition to test through Interstate, Oregon and Washington, not as a finished interpretation.
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The phrase “auxiliary Interstate Highway in Oregon and Washington in the United States” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Sep 9, 2026. The linked authority identifier is Q830610. The Library of Congress control number is sh2010002540. 2 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1943, 1958, 1967 and 1970.
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This entry incorporates text from “Interstate 205 (Oregon–Washington)” 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.