Cascade River RD over Sibley Creek
GoodSkagit County, Washington · 10 E JCT SR 20 · Structure no. 086312000000000
- Built
- 1997
- 28 years old
- Condition
- Good
- inspected June 2024
- Type
- Slab
- Concrete
- Length
- 24 ft
- 3 main spans
- Daily traffic
- 188
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
Cascade River RD over Sibley Creek is a concrete slab carrying Cascade River RD over Sibley Creek in Skagit County, Washington. It was built in 1997, so it is 28 years old, younger 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 188 vehicles a day, roughly 4% of them trucks, projected to reach 230 by 2041. The structure is 24 ft (7.3 m) long and 28 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 | 8 Very Good | No problems noted. |
| 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 Cascade River RD over Sibley Creek built?
It was built in 1997, making it 28 years old in 2025.
What condition is Cascade River RD over Sibley 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 June 2024.
How much traffic does Cascade River RD over Sibley Creek carry?
About 188 vehicles per day (2021 count), of which roughly 4% are trucks.
How long is Cascade River RD over Sibley Creek?
The structure is 24 ft (7.3 m) long with a longest span of 8 ft (2.3 m) and a deck 28 ft wide.
Who owns Cascade River RD over Sibley Creek?
It is owned by the County Highway Agency.