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  2. State highways in Oregon - Wikipedia

    en.wikipedia.org/wiki/State_highways_in_Oregon

    1918 state highway map. The initial primary state highway system was designated in 1917, [3] initially consisting of 36 named and numbered highways, [5] including some designated earlier that year by the Oregon State Legislature and others added to the network by the Oregon State Highway Commission, the predecessor to the OTC. [6]

  3. List of numbered state routes in Oregon - Wikipedia

    en.wikipedia.org/wiki/List_of_numbered_state...

    In the U.S. state of Oregon, there are two systems for categorizing roads in the state highway system: named state highways and numbered state routes.Named highways, such as the Pacific Highway No. 1 or the North Umpqua Highway East No. 138, are primarily used internally by the Oregon Department of Transportation (ODOT) whereas numbered routes, such as Interstate 5 (I-5), U.S. Highway 20 (US ...

  4. List of U.S. Highways in Oregon - Wikipedia

    en.wikipedia.org/.../List_of_U.S._Highways_in_Oregon

    United States Numbered Highways of the Oregon Highway System; ... OR 99/OR 99W in Junction City: OR 99/OR 99W in Portland: 1928: 1972 Now OR 99E: US 99W ...

  5. List of named state highways in Oregon - Wikipedia

    en.wikipedia.org/wiki/List_of_named_state...

    In the U.S. state of Oregon, there are two systems for categorizing roads in the state highway system: named state highways and numbered state routes.Named highways, such as the Pacific Highway No. 1 or the North Umpqua Highway East No. 138, are primarily used internally by the Oregon Department of Transportation (ODOT) whereas numbered routes, such as Interstate 5 (I-5), U.S. Highway 20 (US ...

  6. List of Interstate Highways in Oregon - Wikipedia

    en.wikipedia.org/wiki/List_of_Interstate...

    The Oregon state government initially proposed numbering the auxiliary Interstates using lettered suffixes, but were denied in 1958 by the American Association of State Highway Officials (forerunner to the AASHTO). [7] The last section of the Interstate Highway system to be built in Oregon, on I-82 near Hermiston, opened on September 20, 1988. [8]

  7. Interstate 84 in Oregon - Wikipedia

    en.wikipedia.org/wiki/Interstate_84_in_Oregon

    Interstate 84 is the longest freeway in Oregon, at over 375 miles (604 km) in length, and is the only Interstate to traverse the state from west to east. [2] The highway connects the Portland metropolitan area to the Columbia River Gorge, the northeastern Columbia Plateau, and part of the Snake River Valley. [3]

  8. Oregon Route 11 - Wikipedia

    en.wikipedia.org/wiki/Oregon_Route_11

    Oregon Route 11 is an Oregon state highway that runs between the city of Pendleton in eastern Oregon, to the Washington border south of Walla Walla, Washington.OR 11 traverses the Oregon–Washington Highway No. 8 of the Oregon state highway system, [2] even though there are numerous other highways crossing the Oregon–Washington border.

  9. Interstate 5 in Oregon - Wikipedia

    en.wikipedia.org/wiki/Interstate_5_in_Oregon

    Interstate 5 is the second-longest freeway in Oregon, at 308 miles (496 km), and is the only Interstate to traverse the state from north to south. [4] The highway connects several of the state's largest metropolitan areas, which lie in the Rogue and Willamette valleys, [5] and passes through counties with approximately 81 percent of Oregon's population. [6]

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