Watertrough RD over Atascadero Creek
GoodSonoma County, California · 0.55 MI N Sanders RD · Structure no. 20C0313
- Built
- 1975
- 50 years old
- Condition
- Good
- inspected February 2025
- Type
- Slab
- Concrete Continuous
- Length
- 78 ft
- 3 main spans
- Daily traffic
- 2,100
- 2018 count
- Owner
- County
- County Highway Agency
About this bridge
Watertrough RD over Atascadero Creek is a concrete continuous slab carrying Watertrough RD over Atascadero Creek in Sonoma County, California. It was built in 1975, so it is 50 years old, younger 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 2,100 vehicles a day, roughly 1% of them trucks, projected to reach 2,255 by 2043. The structure is 78 ft (23.7 m) long and 33 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Watertrough RD over Atascadero Creek built?
It was built in 1975, making it 50 years old in 2025.
What condition is Watertrough RD over Atascadero 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 February 2025.
How much traffic does Watertrough RD over Atascadero Creek carry?
About 2,100 vehicles per day (2018 count), of which roughly 1% are trucks.
How long is Watertrough RD over Atascadero Creek?
The structure is 78 ft (23.7 m) long with a longest span of 30 ft (9.1 m) and a deck 33 ft wide.
Who owns Watertrough RD over Atascadero Creek?
It is owned by the County Highway Agency.