List of Interstate Highways in Oregon

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search

Template:SHORTDESC:

Interstate Highways of the Oregon Highway System
Highway markers for Interstates in Oregon
<mapframe height="240" frameless="1" align="center" width="290">[

{"properties":{"stroke-width":6,"stroke":"#ff0000","title":"List of Interstate Highways in Oregon"},"type":"ExternalData","title":"Interstate 405 (Oregon).map","service":"page"}, {"properties":{"stroke-width":6,"stroke":"#ff0000","title":"List of Interstate Highways in Oregon"},"type":"ExternalData","title":"Interstate 82 in Oregon.map","service":"page"}, {"properties":{"stroke-width":6,"stroke":"#ff0000","title":"List of Interstate Highways in Oregon"},"type":"ExternalData","title":"Interstate 84 in Oregon.map","service":"page"}, {"properties":{"stroke-width":2,"stroke":"#cc0000","title":"List of Interstate Highways in Oregon"},"type":"ExternalData","title":"Interstate 5 in Oregon.map","service":"page"}, {"properties":{"stroke-width":6,"stroke":"#ff0000","title":"List of Interstate Highways in Oregon"},"type":"ExternalData","title":"Interstate 105 (Oregon).map","service":"page"}, {"properties":{"stroke-width":1,"stroke":"#000","title":"List of Interstate Highways in Oregon"},"type":"ExternalData","service":"geoline","ids":"Q824"}, {"properties":{"stroke-width":6,"stroke":"#ff0000","title":"List of Interstate Highways in Oregon"},"type":"ExternalData","title":"Interstate 205 (Oregon–Washington).map","service":"page"}

]</mapframe>
Interstate Highways highlighted in red
System information
Maintained by ODOT
FormedJune 29, 1956 (1956-06-29)[1]
Highway names
InterstatesInterstate nn (I-nn)
US HighwaysU.S. Route nn (US nn)
StateOregon Route nn (OR nn)
Named highwaysxx Highway No. nn
System links

The Interstate Highways in Oregon are the segments of the national Dwight D. Eisenhower System of Interstate and Defense Highways[2] that are owned and maintained by the U.S. state of Oregon. On a national level, the standards and numbering for the system are handled by the Federal Highway Administration (FHWA) and the American Association of State Highway and Transportation Officials (AASHTO), while the highways in Oregon are maintained by the Oregon Department of Transportation (ODOT).

These highways are built to Interstate Highway standards,[3] meaning they are all freeways with minimum requirements for full control of access, design speeds of 50 to 70 miles per hour (80 to 115 km/h) depending on type of terrain, a minimum of two travel lanes in each direction, and specific widths of lanes or shoulders;[4] exceptions from these standards have to be approved by the FHWA.[5] The numbering scheme used to designate the Interstates was developed by AASHTO, an organization composed of the various state departments of transportation in the United States.[6]

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]

Primary Interstate Highways

[edit | edit source]
Number Length (mi)[9] Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes
File:I-5.svg I-5 308.14 495.90 I-5 at the California state line I-5 at the Washington state line 01957-01-011957 current
File:I-80N (1957).svg I-80N 375.17 603.78 I-5 / US 30 in Portland I-80N at the Idaho state line 01957-01-011957 01980-01-011980 Renumbered to I-84
File:I-82.svg I-82 11.01 17.72 I-82 at the Washington state line I-84 / US 30 in Umatilla County 01957-01-011957 current
File:I-84.svg I-84 375.17 603.78 I-5 / US 30 in Portland I-84 at the Idaho state line 01980-01-011980 current
  •       Former

Auxiliary Interstate Highways

[edit | edit source]
Number Length (mi)[10] Length (km) Southern or western terminus Northern or eastern terminus Formed Removed
File:I-105.svg I-105 3.49 5.62 OR 99 / OR 126 / OR 126 Bus. in Eugene I-5 / OR 126 in Springfield 01957-01-01c. 1957 current
File:I-205.svg I-205 26.07 41.96 I-5 in Tualatin I-205 at the Washington state line 01958-01-011958 current
File:I-305.svg I-305 — — Salem I-5 in Salem 01957-01-01c. 1957 01967-01-011967
File:I-405.svg I-405 3.53 5.68 I-5 in Portland I-5 / US 30 in Portland 01958-01-011958 current
File:I-505.svg I-505 — — US 30 in Portland I-405 / US 30 in Portland 01957-01-01c. 1957 01988-01-011988
  •       Former

References

[edit | edit source]
  • Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  • Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  • Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).[dead ftp link] (To view documents see Help:FTP)
  1. ^ McNichol (2006), p. 106.
  2. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  3. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  4. ^ McNichol (2006), pp. 10–11.
  5. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  6. ^ McNichol (2006), pp. 57, 121.
  7. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  8. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  9. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  10. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
[edit | edit source]

Lua error in Module:Attached_KML at line 226: attempt to index field 'wikibase' (a nil value).

  • Error creating thumbnail: File missing Media related to Lua error in Module:Commons_link at line 62: attempt to index field 'wikibase' (a nil value). at Wikimedia Commons
  • Oregon Department of Transportation website
  • Oregon highways at AARoads.com
Retrieved from "http://70.231.62.181/index.php?title=List_of_Interstate_Highways_in_Oregon&oldid=23199607"