Coyan Rd. over Potholes Canal
GoodFranklin County, Washington · 0.10 W JCT SR-17 · Structure no. 089205000000000
- Built
- 2021
- 4 years old
- Condition
- Good
- inspected November 2022
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 101 ft
- 1 main span
- Daily traffic
- 135
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Coyan Rd. over Potholes Canal is a prestressed concrete tee beam carrying Coyan Rd. over Potholes Canal in Franklin County, Washington. It was built in 2021, so it is 4 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 135 vehicles a day, roughly 40% of them trucks, projected to reach 200 by 2042. The structure is 101 ft (30.8 m) long and 35 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Coyan Rd. over Potholes Canal built?
It was built in 2021, making it 4 years old in 2025.
What condition is Coyan Rd. over Potholes Canal 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 November 2022.
How much traffic does Coyan Rd. over Potholes Canal carry?
About 135 vehicles per day (2022 count), of which roughly 40% are trucks.
How long is Coyan Rd. over Potholes Canal?
The structure is 101 ft (30.8 m) long with a longest span of 100 ft (30.5 m) and a deck 35 ft wide.
Who owns Coyan Rd. over Potholes Canal?
It is owned by the County Highway Agency.