Willow Creek Road over Willow Creek
GoodSonoma County, California · 0.5 MI E/O SR 1 · Structure no. 20C0096
- Built
- 1966
- 59 years old
- Condition
- Good
- inspected March 2024
- Type
- Slab
- Concrete Continuous
- Length
- 114 ft
- 4 main spans
- Daily traffic
- 170
- 2010 count
- Owner
- County
- County Highway Agency
About this bridge
Willow Creek Road over Willow Creek is a concrete continuous slab carrying Willow Creek Road over Willow Creek in Sonoma County, California. It was built in 1966, so it is 59 years old, older than the California average of 54.8 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 170 vehicles a day, roughly 1% of them trucks, projected to reach 210 by 2046. The structure is 114 ft (34.7 m) long and 29 ft wide. If it were closed, the detour would be 31.7 mi (51 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 Willow Creek Road over Willow Creek built?
It was built in 1966, making it 59 years old in 2025.
What condition is Willow Creek Road over Willow 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 Willow Creek Road over Willow Creek carry?
About 170 vehicles per day (2010 count), of which roughly 1% are trucks.
How long is Willow Creek Road over Willow Creek?
The structure is 114 ft (34.7 m) long with a longest span of 32 ft (9.8 m) and a deck 29 ft wide.
Who owns Willow Creek Road over Willow Creek?
It is owned by the County Highway Agency.