HWY 001 over Willamette River
FairClackamas County, Oregon · At Willamette River · Structure no. 02254A001 28311
- Built
- 1953
- 72 years old, rebuilt 1970
- Condition
- Fair
- inspected January 2024
- Type
- Girder and Floorbeam System
- Steel
- Length
- 1,137 ft
- 3 main spans
- Daily traffic
- 127,233
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
HWY 001 over Willamette River is a steel girder and floorbeam system carrying HWY 001 over Willamette River in Clackamas County, Oregon. It was built in 1953 and reconstructed in 1970, so it is 72 years old, older than the Oregon average of 49.9 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 127,233 vehicles a day, roughly 13% of them trucks, projected to reach 155,000 by 2042. The structure is 1,137 ft (346.5 m) long and 119 ft wide. If it were closed, the detour would be 12.4 mi (20 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was HWY 001 over Willamette River built?
It was built in 1953, making it 72 years old in 2025. It was reconstructed in 1970.
What condition is HWY 001 over Willamette River in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2024.
How much traffic does HWY 001 over Willamette River carry?
About 127,233 vehicles per day (2022 count), of which roughly 13% are trucks.
How long is HWY 001 over Willamette River?
The structure is 1,137 ft (346.5 m) long with a longest span of 250 ft (76.2 m) and a deck 119 ft wide.
Who owns HWY 001 over Willamette River?
It is owned by the State Highway Agency.