SR 20 over Grandy Creek
GoodSkagit County, Washington · 16.4 E JCT SR 9 · Structure no. 0003731A0000000
- Built
- 1950
- 75 years old
- Condition
- Good
- inspected March 2024
- Type
- Slab
- Concrete Continuous
- Length
- 162 ft
- 8 main spans
- Daily traffic
- 5,460
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SR 20 over Grandy Creek is a concrete continuous slab carrying SR 20 over Grandy Creek in Skagit County, Washington. It was built in 1950, so it is 75 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 5,460 vehicles a day, roughly 8% of them trucks, projected to reach 8,004 by 2039. The structure is 162 ft (49.4 m) long and 34 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR 20 over Grandy Creek built?
It was built in 1950, making it 75 years old in 2025.
What condition is SR 20 over Grandy Creek 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 March 2024.
How much traffic does SR 20 over Grandy Creek carry?
About 5,460 vehicles per day (2023 count), of which roughly 8% are trucks.
How long is SR 20 over Grandy Creek?
The structure is 162 ft (49.4 m) long with a longest span of 19 ft (5.9 m) and a deck 34 ft wide.
Who owns SR 20 over Grandy Creek?
It is owned by the State Highway Agency.