Potter RD over Slough
FairPosted for loadWhatcom County, Washington · 00.4 W Valley HWY · Structure no. 082332000000000
- Built
- 1934
- 91 years old, rebuilt 1990
- Condition
- Fair
- inspected January 2023
- Type
- Channel Beam
- Concrete
- Length
- 76 ft
- 4 main spans
- Daily traffic
- 575
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Potter RD over Slough is a concrete channel beam carrying Potter RD over Slough in Whatcom County, Washington. It was built in 1934 and reconstructed in 1990, so it is 91 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. Its operating status is: posted for load restriction.
It carries about 575 vehicles a day, roughly 10% of them trucks, projected to reach 800 by 2045. The structure is 76 ft (23.2 m) long and 26 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 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 Potter RD over Slough built?
It was built in 1934, making it 91 years old in 2025. It was reconstructed in 1990.
What condition is Potter RD over Slough 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 January 2023.
How much traffic does Potter RD over Slough carry?
About 575 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is Potter RD over Slough?
The structure is 76 ft (23.2 m) long with a longest span of 19 ft (5.8 m) and a deck 26 ft wide.
Who owns Potter RD over Slough?
It is owned by the County Highway Agency.