Thorp Prairie Road over Hiline Canal
GoodKittitas County, Washington · 01.82 NW Taneum RD · Structure no. 084222000000000
- Built
- 1995
- 30 years old
- Condition
- Good
- inspected October 2024
- Type
- Tee Beam
- Concrete Continuous
- Length
- 72 ft
- 1 main span
- Daily traffic
- 275
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Thorp Prairie Road over Hiline Canal is a concrete continuous tee beam carrying Thorp Prairie Road over Hiline Canal in Kittitas County, Washington. It was built in 1995, so it is 30 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 275 vehicles a day, roughly 26% of them trucks, projected to reach 728 by 2040. The structure is 72 ft (21.9 m) long and 36 ft wide. If it were closed, the detour would be 14.9 mi (24 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 | 8 Very Good | No problems noted. |
| 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 Thorp Prairie Road over Hiline Canal built?
It was built in 1995, making it 30 years old in 2025.
What condition is Thorp Prairie Road over Hiline Canal 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 2024.
How much traffic does Thorp Prairie Road over Hiline Canal carry?
About 275 vehicles per day (2020 count), of which roughly 26% are trucks.
How long is Thorp Prairie Road over Hiline Canal?
The structure is 72 ft (21.9 m) long with a longest span of 70 ft (21.3 m) and a deck 36 ft wide.
Who owns Thorp Prairie Road over Hiline Canal?
It is owned by the County Highway Agency.