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Interstate Truck Speeds

In 2017 the Oregon Department of Transportation conducted an engineering study to identify the potential impacts of increasing the truck speed limit of the interstates, specifically those that currently posted at 55 for trucks and 65 for cars. The Speed Zone Review Panel held several public meetings during March 2017, and a final meeting of the Speed Zone Review Panel was held on June 8.

ODOT recommended truck speeds on interstate highways be raised in those sections of highway with existing limits of 65 mph for cars and 55 mph for trucks. One exception to this recommendation is in the Roseburg area, where ODOT recommends lowering the car speed from 65 to 60 mph, leaving the truck speed at 55 mph. The Speed Zone Review Panel agreed with ODOT's recommendation to increase truck speeds on the interstates.

The Oregon Transportation Commission approved ODOT's recommendation in September 2017, and sign installations began in November 2017.

Informational Reports

Applicable Laws

734-020 - Highway Division, Traffic Control

  • 734-020-0010 - Establishment of Speed Limits on Interstate Highways
  • 734-020-0011 - Locations of Interstate Speed Limits other than 65 MPH
  • 734-020-0014 - Speed Zone Definitions

Oregon Revised Statute 810.180 - Designation of Maximum Speeds

ORS 811.111 - Violating a Speed Limit

Contact the Traffic Roadway Section

4040 Fairview Industrial Drive SE, MS 5
Salem, Oregon 97302
Phone: 503-986-3568
Fax: 503-986-3749