An over-dimension variance permit is required when a truck and/or combination exceeds vehicle limits in Oregon law, ORS Chapter 818. The permits provide routing plans and restrictions for travel through the state. Oregon also issues permits for travel in nine Western states through a Regional Permit Agreement.
Continuous Trip Permits include Heavy Haul Permits, issued annually for nondivisible loads 98,000 pounds or less when operating over legal axle limits, and Extended Weight Permits, issued annually for divisible loads from 80,001 to 105,500 pounds. Single Trip Permits are issued for nondivisible loads when axle weights exceed legal limits.
In summary, a permit is needed for a single, nondivisible load when any of the following applies:
Width of the load or hauling equipment exceeds 8 feet, 6 inches
Height of vehicle or combination and load exceeds 14 feet
Any single axle exceeds 20,000 pounds
Any tandem axle exceeds 34,000 pounds
Gross combination weight exceeds 80,000 pounds
Front overhang exceeds 4 feet beyond the front bumper
Load greater than 40 feet, exceeding 5 feet beyond the end of the semi-trailer, or load less than or equal to 40 feet, exceeding one-third of the wheelbase of the combination, whichever is less
Gross weight of a group of axles exceeds those in the legal weight table shown on Group Map 1
Vehicle combination length exceeds that authorized on Group Map 1
ODOT, Motor Carrier Transportation Division, issues single-trip permits and manages the work of four Permit Agents who issue annual permits.
Trucks operating under over-dimension permits are required to follow certain conditions and observe special restrictions spelled out on attachments and maps that must be carried in the vehicle.
Additional Information:
For information about obtaining an over-dimension permit, please contact the ODOT Motor Carrier Transportation Division staff:
Single Trip Variance Permits Motor Carrier Transportation Division, Over-Dimension Permit Unit 550 Capitol Street NE, Salem OR Phone 503-373-0000 - Monday-Friday, 7 a.m. - 5 p.m.
There are also four agents available to issue Continuous Operation Variance Permits, the annual variance permits that authorize travel on Oregon state highways as well as county roads and Portland streets.
Oregon Trucking Associations 4005 SE Naef Road, Portland OR 97267 Becky Meserve Phone: 888-293-0005, Ext. 110 ý Fax: 503-513-9541
A Work Safe Service 1696 Capitol Street NE, Salem OR 97301 Deb Bliven, Mike Bliven, Matt Bliven, Tish Nelson Phone: 503-391-9363 ý Fax: 503-316-9110
Marion County Public Works Department 5155 Silverton Road NE, Salem OR 97305 Laura Renner Phone: 503-584-7710 ý Fax: 503-588-5102
Clackamas County Motor Carrier Division 902 Abernethy Road, Oregon City OR 97045 Debi Normand Truck Permits: 888-387-8259 Phone: 503-650-3248 ý Fax: 503-650-3219
Visit the Motor Carrier Transportation Division Web site for more information about Over-Dimension Permits.
Agency Information
Please refer to the Agency Website for further details and additional information.
