Or 34 (hwy 27) over Marys River
FairPosted for loadBenton County, Oregon · 002 MI W HWY 33 JCT · Structure no. 00771 027 05842
- Built
- 1949
- 76 years old
- Condition
- Fair
- inspected January 2024
- Type
- Tee Beam
- Concrete Continuous
- Length
- 223 ft
- 3 main spans
- Daily traffic
- 4,008
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Or 34 (hwy 27) over Marys River is a concrete continuous tee beam carrying Or 34 (hwy 27) over Marys River in Benton County, Oregon. It was built in 1949, so it is 76 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.
It carries about 4,008 vehicles a day, roughly 16% of them trucks, projected to reach 4,900 by 2042. The structure is 223 ft (68 m) long and 35 ft wide. If it were closed, the detour would be 0.6 mi (1 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 27) over Marys River built?
It was built in 1949, making it 76 years old in 2025.
What condition is Or 34 (hwy 27) over Marys 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 Or 34 (hwy 27) over Marys River carry?
About 4,008 vehicles per day (2022 count), of which roughly 16% are trucks.
How long is Or 34 (hwy 27) over Marys River?
The structure is 223 ft (68 m) long with a longest span of 60 ft (18.3 m) and a deck 35 ft wide.
Who owns Or 34 (hwy 27) over Marys River?
It is owned by the State Highway Agency.