The State of Oregon sets restrictions on vehicle size and weight. Most overdimension permits are issued by Oregon Department of Transportation.
These tables address weight limits by vehicle type. They are based on the condition of the bridge and are updated periodically as bridge conditions change.
Please see ODOT's website for information about permit requirements and to apply for a permit.
This page was updated 10/4/24.
Willamette River Bridges
We maintain the six Willamette River bridges listed below. Who maintains the other bridges?
| Bridge Name | Evaluation Date | Type 3 [25T] | Type 3S-2 [40T] | Type 3-3 [40T] | OR-SU4 [28T] | OR-SU5 [32T] | OR-SU6 [35.75T] | OR-SU7 [39.75T] | EV2 [28.75T] | EV3 [43T] |
|---|---|---|---|---|---|---|---|---|---|---|
| Broadway Bridge | 2022 | a | a | a | a | a | a | a | a | a |
| Burnside Bridge | 2020 | a | a | a | 23 | 24 | 24 | 25 | 24 | 25 |
| Hawthorne Bridge | 2025 | a | a | a | a | 27 | 27 | 32 | a | 25 |
| Morrison Bridge (westbound) | 2020 | 17 | 20 | 20 | 17 | 17 | 18 | 18 | a | 33 |
| Morrison Bridge (eastbound) | 2020 | 20 | 26 | 26 | 20 | 20 | 21 | 21 | a | 34 |
| Sellwood Bridge | 2019 | a | a | a | a | a | a | a | d | d |
| Wapato Bridge | 2022 | a | a | a | a | a | a | a | a | a |
a. Per vehicle type. Lower weight restriction not required.
b. Revised evaluation in progress. New limit may be pending.
c. No information available. Contact us with questions or concerns: row.permits@multco.us, 503.988.3582.
d. Emergency Vehicle (EV) weight limits apply only to "bridges on the Interstate System and within reasonable access to" it, where "reasonable access" is approximately one road-mile.Those bridges are posted where appropriate. For the remaining bridges farther away, the data is provided here if available.
Other Structures
We maintain a number of smaller bridges, viaducts and other structures in east Multnomah County and Sauvie Island.
a. Per vehicle type. Lower weight restriction not required.
b. Revised evaluation in progress. New limit may be pending.
c. No information available. Contact us with questions or concerns: row.permits@multco.us, 503.988.3582.
d. Emergency Vehicle (EV) weight limits apply only to "bridges on the Interstate System and within reasonable access to" it, where "reasonable access" is approximately one road-mile.Those bridges are posted where appropriate. For the remaining bridges farther away, the data is provided here if available.