Tunk Valley RD over Okanogan River
FairOkanogan County, Washington · 0.32 M E US 97 · Structure no. 085437000000000
- Built
- 1969
- 56 years old
- Condition
- Fair
- inspected October 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 330 ft
- 1 main span
- Daily traffic
- 650
- 2013 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Tunk Valley RD over Okanogan River is a steel stringer/multi-beam or girder carrying Tunk Valley RD over Okanogan River in Okanogan County, Washington. It was built in 1969, so it is 56 years old, older than the Washington average of 49.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 650 vehicles a day, roughly 20% of them trucks, projected to reach 780 by 2033. The structure is 330 ft (100.6 m) long and 34 ft wide. If it were closed, the detour would be 19.3 mi (31 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 Tunk Valley RD over Okanogan River built?
It was built in 1969, making it 56 years old in 2025.
What condition is Tunk Valley RD over Okanogan River in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2023.
How much traffic does Tunk Valley RD over Okanogan River carry?
About 650 vehicles per day (2013 count), of which roughly 20% are trucks.
How long is Tunk Valley RD over Okanogan River?
The structure is 330 ft (100.6 m) long with a longest span of 170 ft (51.8 m) and a deck 34 ft wide.
Who owns Tunk Valley RD over Okanogan River?
It is owned by the City or Municipal Highway Agency and maintained by the County Highway Agency.