SR 20 over Muddy CR
GoodSkagit County, Washington · 10.9 E JCT SR 9 · Structure no. 0008227B0000000
- Built
- 1967
- 58 years old
- Condition
- Good
- inspected June 2022
- Type
- Slab
- Concrete Continuous
- Length
- 52 ft
- 1 main span
- Daily traffic
- 7,403
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SR 20 over Muddy CR is a concrete continuous slab carrying SR 20 over Muddy CR in Skagit County, Washington. It was built in 1967, so it is 58 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 7,403 vehicles a day, roughly 9% of them trucks, projected to reach 10,853 by 2039. The structure is 52 ft (15.8 m) long and 39 ft wide. If it were closed, the detour would be 3.1 mi (5 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 Muddy CR built?
It was built in 1967, making it 58 years old in 2025.
What condition is SR 20 over Muddy CR 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 2022.
How much traffic does SR 20 over Muddy CR carry?
About 7,403 vehicles per day (2023 count), of which roughly 9% are trucks.
How long is SR 20 over Muddy CR?
The structure is 52 ft (15.8 m) long with a longest span of 35 ft (10.7 m) and a deck 39 ft wide.
Who owns SR 20 over Muddy CR?
It is owned by the State Highway Agency.