Or 34 (hwy 27) over Rock Creek
FairBenton County, Oregon · 040 MI W HWY 33 JCT · Structure no. 01259 027 05453
- Built
- 1926
- 99 years old, rebuilt 1966
- Condition
- Fair
- inspected January 2024
- Type
- Tee Beam
- Concrete Continuous
- Length
- 120 ft
- 4 main spans
- Daily traffic
- 2,352
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Or 34 (hwy 27) over Rock Creek is a concrete continuous tee beam carrying Or 34 (hwy 27) over Rock Creek in Benton County, Oregon. It was built in 1926 and reconstructed in 1966, so it is 99 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.
It carries about 2,352 vehicles a day, roughly 16% of them trucks, projected to reach 2,900 by 2042. The structure is 120 ft (36.6 m) long and 41 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 Rock Creek built?
It was built in 1926, making it 99 years old in 2025. It was reconstructed in 1966.
What condition is Or 34 (hwy 27) over Rock Creek 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 Rock Creek carry?
About 2,352 vehicles per day (2022 count), of which roughly 16% are trucks.
How long is Or 34 (hwy 27) over Rock Creek?
The structure is 120 ft (36.6 m) long with a longest span of 30 ft (9.1 m) and a deck 41 ft wide.
Who owns Or 34 (hwy 27) over Rock Creek?
It is owned by the State Highway Agency.