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Speed Zones

Effective May 1, 2020, the process for conducting speed zone investigations and determining recommendations has changed. Review an overview of the new process or review the corresponding Oregon Administrative Rule updates for information about the change. We've also updated the Speed Zone Manual to reflect the change.

Oregon Speed Zone Standards

State statutes give Oregon motorists the following speed zone standards. Posted speeds override statutory standards.

  • 15 mph - Alleys, narrow residential roadways.
  • 20 mph - Business districts, school zones and some residential.
  • 25 mph - Residential districts, public parks, ocean shores.
  • 55 mph - Most rural highways; trucks on most interstates.
  • 65 mph - Passenger vehicles, light trucks, motor homes and light duty commercial vehicles on most interstates.

Although most interstates have a statutory speed of 55 mph for trucks, many of these interstates have designated truck speeds of 60 mph by Oregon Administrative Rule. See OAR 734-020-0011 for all designated speeds.

In addition, Oregon Revised Statute (ORS 811.111 subsection 2-12) establishes different statutory speeds than those shown above for specific sections of rural highways and interstates in eastern Oregon. Although these highways and interstates may have some segments with designated speeds, they generally have posted speed limits as follows:

Some Rural Highways:

  • 60 mph - Trucks.
  • 65 mph - Passenger vehicles, light trucks, motor homes and light duty commercial vehicles.

Some Interstates and Specific Rural Highways:

  • 65 mph - Trucks.
  • 70 mph - Passenger vehicles, light trucks, motor homes and light duty commercial vehicles.

See ORS 811.105 and 811.111 for more details on statutory speeds.

Speed Zone Brochure

Frequently Asked Questions

Speed 70 miles per hour sign

Contact the Traffic Section

4040 Fairview Industrial Drive SE, MS5
Salem, Oregon 97302
Phone: 503-986-3568
Fax: 503-986-3749

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