Powerhouse Road over Cowiche Creek
GoodYakima County, Washington · 00.09 S Naches Hgts · Structure no. 080981000000000
- Built
- 1930
- 95 years old
- Condition
- Good
- inspected January 2023
- Type
- Slab
- Concrete Continuous
- Length
- 44 ft
- 2 main spans
- Daily traffic
- 7,000
- 2023 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Powerhouse Road over Cowiche Creek is a concrete continuous slab carrying Powerhouse Road over Cowiche Creek in Yakima County, Washington. It was built in 1930, so it is 95 years old, older 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 7,000 vehicles a day, roughly 5% of them trucks, projected to reach 10,000 by 2043. The structure is 44 ft (13.4 m) long and 26 ft wide. If it were closed, the detour would be 3.1 mi (5 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 Powerhouse Road over Cowiche Creek built?
It was built in 1930, making it 95 years old in 2025.
What condition is Powerhouse Road over Cowiche 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 January 2023.
How much traffic does Powerhouse Road over Cowiche Creek carry?
About 7,000 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is Powerhouse Road over Cowiche Creek?
The structure is 44 ft (13.4 m) long with a longest span of 21 ft (6.4 m) and a deck 26 ft wide.
Who owns Powerhouse Road over Cowiche Creek?
It is owned by the City or Municipal Highway Agency.