Slater RD over Red River
FairWhatcom County, Washington · 03.90 W of NW DR · Structure no. 080497000000000
- Built
- 1900
- 125 years old, rebuilt 1957
- Condition
- Fair
- inspected March 2023
- Type
- Slab
- Concrete Continuous
- Length
- 104 ft
- 5 main spans
- Daily traffic
- 11,365
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
Slater RD over Red River is a concrete continuous slab carrying Slater RD over Red River in Whatcom County, Washington. It was built in 1900 and reconstructed in 1957, so it is 125 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 11,365 vehicles a day, roughly 2% of them trucks, projected to reach 17,200 by 2043. The structure is 104 ft (31.7 m) long and 36 ft wide. If it were closed, the detour would be 6.8 mi (11 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 Slater RD over Red River built?
It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1957.
What condition is Slater RD over Red 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 March 2023.
How much traffic does Slater RD over Red River carry?
About 11,365 vehicles per day (2021 count), of which roughly 2% are trucks.
How long is Slater RD over Red River?
The structure is 104 ft (31.7 m) long with a longest span of 22 ft (6.7 m) and a deck 36 ft wide.
Who owns Slater RD over Red River?
It is owned by the County Highway Agency.