Walnut DR over Salt Creek
GoodColusa County, California · 1.5 MI E of SR 20 · Structure no. 15C0054
- Built
- 1970
- 55 years old
- Condition
- Good
- inspected October 2024
- Type
- Slab
- Concrete Continuous
- Length
- 60 ft
- 2 main spans
- Daily traffic
- 181
- 2014 count
- Owner
- County
- County Highway Agency
About this bridge
Walnut DR over Salt Creek is a concrete continuous slab carrying Walnut DR over Salt Creek in Colusa County, California. It was built in 1970, so it is 55 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 181 vehicles a day, roughly 2% of them trucks, projected to reach 444 by 2046. The structure is 60 ft (18.3 m) long and 32 ft wide. If it were closed, the detour would be 11.2 mi (18 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Walnut DR over Salt Creek built?
It was built in 1970, making it 55 years old in 2025.
What condition is Walnut DR over Salt 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 October 2024.
How much traffic does Walnut DR over Salt Creek carry?
About 181 vehicles per day (2014 count), of which roughly 2% are trucks.
How long is Walnut DR over Salt Creek?
The structure is 60 ft (18.3 m) long with a longest span of 28 ft (8.5 m) and a deck 32 ft wide.
Who owns Walnut DR over Salt Creek?
It is owned by the County Highway Agency.