Overstreet B486 over Owyhee Canal
FairPosted for loadMalheur County, Oregon · 002 E Inter Owyheelake RD · Structure no. 45C202083900025
- Built
- 1974
- 51 years old
- Condition
- Fair
- inspected October 2023
- Type
- Channel Beam
- Prestressed Concrete
- Length
- 29 ft
- 1 main span
- Daily traffic
- 478
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Overstreet B486 over Owyhee Canal is a prestressed concrete channel beam carrying Overstreet B486 over Owyhee Canal in Malheur County, Oregon. It was built in 1974, so it is 51 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 478 vehicles a day, roughly 10% of them trucks, projected to reach 568 by 2025. The structure is 29 ft (8.8 m) long and 32 ft wide. If it were closed, the detour would be 4.3 mi (7 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 | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Overstreet B486 over Owyhee Canal built?
It was built in 1974, making it 51 years old in 2025.
What condition is Overstreet B486 over Owyhee Canal 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 October 2023.
How much traffic does Overstreet B486 over Owyhee Canal carry?
About 478 vehicles per day (2020 count), of which roughly 10% are trucks.
How long is Overstreet B486 over Owyhee Canal?
The structure is 29 ft (8.8 m) long with a longest span of 28 ft (8.5 m) and a deck 32 ft wide.
Who owns Overstreet B486 over Owyhee Canal?
It is owned by the County Highway Agency.