SR 21 over San Poil River
GoodFerry County, Washington · 2.8 N JCT SR 20 · Structure no. 0013285A0000000
- Built
- 1987
- 38 years old
- Condition
- Good
- inspected April 2023
- Type
- Channel Beam
- Prestressed Concrete
- Length
- 47 ft
- 1 main span
- Daily traffic
- 1,580
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SR 21 over San Poil River is a prestressed concrete channel beam carrying SR 21 over San Poil River in Ferry County, Washington. It was built in 1987, so it is 38 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 1,580 vehicles a day, roughly 11% of them trucks, projected to reach 1,946 by 2039. The structure is 47 ft (14.3 m) long and 36 ft wide. If it were closed, the detour would be 14.3 mi (23 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 | 7 Good | Some minor problems. |
| 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 21 over San Poil River built?
It was built in 1987, making it 38 years old in 2025.
What condition is SR 21 over San Poil River 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 April 2023.
How much traffic does SR 21 over San Poil River carry?
About 1,580 vehicles per day (2023 count), of which roughly 11% are trucks.
How long is SR 21 over San Poil River?
The structure is 47 ft (14.3 m) long with a longest span of 44 ft (13.4 m) and a deck 36 ft wide.
Who owns SR 21 over San Poil River?
It is owned by the State Highway Agency.