Road over Cooper River
GoodKittitas County, Washington · No Data Entered · Structure no. 061703000001461
- Built
- 1978
- 47 years old
- Condition
- Good
- inspected May 2024
- Type
- Frame
- Concrete Continuous
- Length
- 129 ft
- 3 main spans
- Daily traffic
- 50
- 1995 count
- Owner
- Federal
- U.S. Forest Service
About this bridge
Road over Cooper River is a concrete continuous frame carrying Road over Cooper River in Kittitas County, Washington. It was built in 1978, so it is 47 years old, younger than the Washington average of 49.8 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 50 vehicles a day, projected to reach 75 by 2045. The structure is 129 ft (39.3 m) long and 20 ft wide. If it were closed, the detour would be 98.2 mi (158 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 | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Road over Cooper River built?
It was built in 1978, making it 47 years old in 2025.
What condition is Road over Cooper 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 2024.
How much traffic does Road over Cooper River carry?
About 50 vehicles per day (1995 count).
How long is Road over Cooper River?
The structure is 129 ft (39.3 m) long with a longest span of 77 ft (23.5 m) and a deck 20 ft wide.
Who owns Road over Cooper River?
It is owned by the U.S. Forest Service.