SR 20 over Skagit R
GoodWhatcom County, Washington · 9.6 E Skagit CO · Structure no. 0006291A0000000
- Built
- 1960
- 65 years old
- Condition
- Good
- inspected June 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 460 ft
- 3 main spans
- Daily traffic
- 1,470
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SR 20 over Skagit R is a concrete continuous box beam or girders - multiple carrying SR 20 over Skagit R in Whatcom County, Washington. It was built in 1960, so it is 65 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 1,470 vehicles a day, roughly 8% of them trucks, projected to reach 2,118 by 2039. The structure is 460 ft (140.2 m) long and 31 ft wide. If it were closed, the detour would be 98.8 mi (159 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 20 over Skagit R built?
It was built in 1960, making it 65 years old in 2025.
What condition is SR 20 over Skagit R 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 June 2024.
How much traffic does SR 20 over Skagit R carry?
About 1,470 vehicles per day (2023 count), of which roughly 8% are trucks.
How long is SR 20 over Skagit R?
The structure is 460 ft (140.2 m) long with a longest span of 136 ft (41.5 m) and a deck 31 ft wide.
Who owns SR 20 over Skagit R?
It is owned by the State Highway Agency.