Or 34 (hwy 33) over Willamette River
GoodBenton County, Oregon · South Corvallis · Structure no. 16873 033 05615
- Built
- 1991
- 34 years old
- Condition
- Good
- inspected May 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 660 ft
- 5 main spans
- Daily traffic
- 22,606
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Or 34 (hwy 33) over Willamette River is a prestressed concrete stringer/multi-beam or girder carrying Or 34 (hwy 33) over Willamette River in Benton County, Oregon. It was built in 1991, so it is 34 years old, younger than the Oregon average of 49.9 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 22,606 vehicles a day, roughly 6% of them trucks, projected to reach 22,700 by 2042. The structure is 660 ft (201.2 m) long and 52 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Or 34 (hwy 33) over Willamette River built?
It was built in 1991, making it 34 years old in 2025.
What condition is Or 34 (hwy 33) over Willamette River in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.
How much traffic does Or 34 (hwy 33) over Willamette River carry?
About 22,606 vehicles per day (2022 count), of which roughly 6% are trucks.
How long is Or 34 (hwy 33) over Willamette River?
The structure is 660 ft (201.2 m) long with a longest span of 140 ft (42.7 m) and a deck 52 ft wide.
Who owns Or 34 (hwy 33) over Willamette River?
It is owned by the State Highway Agency.