Weight and Dimension Restrictions
As authorized by Code Section 16.70.600, Over-Dimensional Vehicles, the City Traffic Engineer may grant permits for the operation of over-dimensional vehicles on City streets.
The limits in the City of Portland are:
- Height - 14 feet;
- Length - 50 feet for single units, and 65 feet for combinations;
- Width - 8 feet 6 inches;
- Weight - 80,000 pounds gross.
Over Following Route
The City does not "scout" routes, but does recommend using State routes whenever possible.
Restricted streets/routes/loads:
- NE Marine Drive. No triple trailer combination under any circumstances.
- No house moves greater than 12 feet wide unless on a trailer. Dates and times of house move routes must be approved by Street Systems Management.
- A rider must accompany a load over 14'6" unless a device of more than 3 feet in height is mounted above the load to prevent shagging traffic signals, utility wires, etc.
Curfews
- All permits are issued for daylight hours, except 7-9 a.m. and 3-6 p.m. unless otherwise approved by City staff.
- Night permits may be approved, at the City's discretion, for overlength and overweight dimensions, but not for overwidth dimensions.
City Approvals
- Signal Electrician. Must approve high loads (generally over 15'6");
- Structures. Must approve loads over 80,000 pounds gross weight. An axle-loading diagrams is required from the permittee if the proposed route includes City structures;
- Traffic Investigations Staff. Initials for completed insurance. City Attorney's Office. Verifies the insurance and stamps it when it is approved as to form.
TriMet Notification
The City notify TriMet that a Track Access Permit is needed when dimensions are higher than 18 feet. The City's Overdimensional Permit will state "Not valid without accompanying permit."
The City of Portland overdimensional permits https://www.portlandoregon.gov/citycode/article/59240