Silver Ck RD 00670 over San Poil River
FairFerry County, Washington · 00.03 E SR 21 · Structure no. 082777000000000
- Built
- 1961
- 64 years old
- Condition
- Fair
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Concrete Continuous
- Length
- 146 ft
- 3 main spans
- Daily traffic
- 325
- 2018 count
- Owner
- County
- County Highway Agency
About this bridge
Silver Ck RD 00670 over San Poil River is a concrete continuous stringer/multi-beam or girder carrying Silver Ck RD 00670 over San Poil River in Ferry County, Washington. It was built in 1961, so it is 64 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 6 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 325 vehicles a day, roughly 15% of them trucks, projected to reach 610 by 2040. The structure is 146 ft (44.5 m) long and 26 ft wide. If it were closed, the detour would be 23 mi (37 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Silver Ck RD 00670 over San Poil River built?
It was built in 1961, making it 64 years old in 2025.
What condition is Silver Ck RD 00670 over San Poil 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 June 2024.
How much traffic does Silver Ck RD 00670 over San Poil River carry?
About 325 vehicles per day (2018 count), of which roughly 15% are trucks.
How long is Silver Ck RD 00670 over San Poil River?
The structure is 146 ft (44.5 m) long with a longest span of 60 ft (18.3 m) and a deck 26 ft wide.
Who owns Silver Ck RD 00670 over San Poil River?
It is owned by the County Highway Agency.