West Taneum Road over Hiline Spillway
GoodKittitas County, Washington · 00.30 W Thorp Cem R · Structure no. 080318000000000
- Built
- 1964
- 61 years old
- Condition
- Good
- inspected October 2023
- Type
- Tee Beam
- Concrete Continuous
- Length
- 43 ft
- 1 main span
- Daily traffic
- 128
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
West Taneum Road over Hiline Spillway is a concrete continuous tee beam carrying West Taneum Road over Hiline Spillway in Kittitas County, Washington. It was built in 1964, so it is 61 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 128 vehicles a day, roughly 27% of them trucks, projected to reach 371 by 2040. The structure is 43 ft (13.1 m) long and 25 ft wide. If it were closed, the detour would be 98.8 mi (159 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was West Taneum Road over Hiline Spillway built?
It was built in 1964, making it 61 years old in 2025.
What condition is West Taneum Road over Hiline Spillway 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 October 2023.
How much traffic does West Taneum Road over Hiline Spillway carry?
About 128 vehicles per day (2022 count), of which roughly 27% are trucks.
How long is West Taneum Road over Hiline Spillway?
The structure is 43 ft (13.1 m) long with a longest span of 41 ft (12.5 m) and a deck 25 ft wide.
Who owns West Taneum Road over Hiline Spillway?
It is owned by the County Highway Agency.