Lost River RD over Lost River
PoorOkanogan County, Washington · 6.3MI NW Mazama · Structure no. 080358000000000
- Built
- 1950
- 75 years old
- Condition
- Poor
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Concrete Continuous
- Length
- 90 ft
- 3 main spans
- Daily traffic
- 95
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Lost River RD over Lost River is a concrete continuous stringer/multi-beam or girder carrying Lost River RD over Lost River in Okanogan County, Washington. It was built in 1950, so it is 75 years old, older than the Washington average of 49.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 95 vehicles a day, roughly 4% of them trucks, projected to reach 130 by 2042. The structure is 90 ft (27.4 m) long and 30 ft wide. If it were closed, the detour would be 98.8 mi (159 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Lost River RD over Lost River built?
It was built in 1950, making it 75 years old in 2025.
What condition is Lost River RD over Lost River in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.
How much traffic does Lost River RD over Lost River carry?
About 95 vehicles per day (2020 count), of which roughly 4% are trucks.
How long is Lost River RD over Lost River?
The structure is 90 ft (27.4 m) long with a longest span of 52 ft (15.8 m) and a deck 30 ft wide.
Who owns Lost River RD over Lost River?
It is owned by the County Highway Agency.