SR 9 over Drainage Channel
GoodWhatcom County, Washington · 5.9 N Skagit CO · Structure no. 0003011A0000000
- Built
- 1945
- 80 years old
- Condition
- Good
- inspected August 2024
- Type
- Slab
- Concrete Continuous
- Length
- 68 ft
- 4 main spans
- Daily traffic
- 2,967
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SR 9 over Drainage Channel is a concrete continuous slab carrying SR 9 over Drainage Channel in Whatcom County, Washington. It was built in 1945, so it is 80 years old, older 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 2,967 vehicles a day, roughly 21% of them trucks, projected to reach 3,836 by 2039. The structure is 68 ft (20.7 m) long and 40 ft wide. If it were closed, the detour would be 42.9 mi (69 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 9 over Drainage Channel built?
It was built in 1945, making it 80 years old in 2025.
What condition is SR 9 over Drainage Channel 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 August 2024.
How much traffic does SR 9 over Drainage Channel carry?
About 2,967 vehicles per day (2023 count), of which roughly 21% are trucks.
How long is SR 9 over Drainage Channel?
The structure is 68 ft (20.7 m) long with a longest span of 18 ft (5.5 m) and a deck 40 ft wide.
Who owns SR 9 over Drainage Channel?
It is owned by the State Highway Agency.