Coombs Canyon RD over Birch Creek
GoodUmatilla County, Oregon · 0.8 MI W of HWY 395 · Structure no. 59C005135001970
- Built
- 1981
- 44 years old
- Condition
- Good
- inspected July 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 76 ft
- 1 main span
- Daily traffic
- 169
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Coombs Canyon RD over Birch Creek is a prestressed concrete box beam or girders - multiple carrying Coombs Canyon RD over Birch Creek in Umatilla County, Oregon. It was built in 1981, so it is 44 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 169 vehicles a day, roughly 20% of them trucks, projected to reach 196 by 2025. The structure is 76 ft (23.2 m) long and 28 ft wide. If it were closed, the detour would be 13.7 mi (22 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 | 8 Very Good | No problems noted. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| 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 Coombs Canyon RD over Birch Creek built?
It was built in 1981, making it 44 years old in 2025.
What condition is Coombs Canyon RD over Birch Creek 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 July 2024.
How much traffic does Coombs Canyon RD over Birch Creek carry?
About 169 vehicles per day (2020 count), of which roughly 20% are trucks.
How long is Coombs Canyon RD over Birch Creek?
The structure is 76 ft (23.2 m) long with a longest span of 75 ft (22.9 m) and a deck 28 ft wide.
Who owns Coombs Canyon RD over Birch Creek?
It is owned by the County Highway Agency.