SR 20 over Cutthroat Creek
GoodOkanogan County, Washington · 4.5 E Chelan CO · Structure no. 0008473A0000000
- Built
- 1968
- 57 years old
- Condition
- Good
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 65 ft
- 1 main span
- Daily traffic
- 1,081
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SR 20 over Cutthroat Creek is a prestressed concrete stringer/multi-beam or girder carrying SR 20 over Cutthroat Creek in Okanogan County, Washington. It was built in 1968, so it is 57 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 1,081 vehicles a day, roughly 9% of them trucks, projected to reach 1,345 by 2039. The structure is 65 ft (19.8 m) long and 35 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 | 8 Very Good | No problems noted. |
| 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 SR 20 over Cutthroat Creek built?
It was built in 1968, making it 57 years old in 2025.
What condition is SR 20 over Cutthroat 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 SR 20 over Cutthroat Creek carry?
About 1,081 vehicles per day (2023 count), of which roughly 9% are trucks.
How long is SR 20 over Cutthroat Creek?
The structure is 65 ft (19.8 m) long with a longest span of 62 ft (18.9 m) and a deck 35 ft wide.
Who owns SR 20 over Cutthroat Creek?
It is owned by the State Highway Agency.