List of numbered state routes in Oregon
Introduction


In the [U.S. state](/wiki/U.S._state "U.S. state") of [Oregon](/wiki/Oregon "Oregon"), there are two systems for categorizing roads in the state highway system: [named state highways](/wiki/List_of_named_state_highways_in_Oregon "List of named state highways in Oregon") and **numbered state routes**. Named highways, such as the [Pacific Highway No. 1](/wiki/Pacific_Highway_No._1 "Pacific Highway No. 1") or the [North Umpqua Highway East No. 138](/wiki/North_Umpqua_Highway_East_No._138 "North Umpqua Highway East No. 138"), are primarily used internally by the [Oregon Department of Transportation](/wiki/Oregon_Department_of_Transportation "Oregon Department of Transportation") (ODOT) whereas numbered routes, such as [Interstate 5](/wiki/Interstate_5_in_Oregon "Interstate 5 in Oregon") (I\-5\), [U.S. Highway 20](/wiki/U.S._Route_20_in_Oregon "U.S. Route 20 in Oregon") (US 20\), or [Oregon Route 140](/wiki/Oregon_Route_140 "Oregon Route 140") (OR 140\), are posted on [road signs](/wiki/Road_sign "Road sign") and [route markers](/wiki/Route_marker "Route marker"). The two systems overlap significantly, but the route numbers are not necessarily coterminous with highway names and some routes may comprise several highways. For example, [OR 47](/wiki/Oregon_Route_47 "Oregon Route 47") is overlaid on the [Mist–Clatskanie Highway No. 110](/wiki/Mist%E2%80%93Clatskanie_Highway_No._110 "Mist–Clatskanie Highway No. 110"), [Nehalem Highway No. 102](/wiki/Nehalem_Highway_No._102 "Nehalem Highway No. 102"), and [Tualatin Valley Highway No. 29](/wiki/Tualatin_Valley_Highway_No._29 "Tualatin Valley Highway No. 29"). In addition to OR 47, the Tualatin Valley Highway No. 29 also comprises part of [OR 8](/wiki/Oregon_Route_8 "Oregon Route 8").
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Can a single highway be used in both systems, named and numbered?