Walnut DR over Tehama-Colusa Canal
GoodColusa County, California · 1.2 MI E of S.R. 20 · Structure no. 15C0146
- Built
- 1978
- 47 years old
- Condition
- Good
- inspected December 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 78 ft
- 1 main span
- Daily traffic
- 178
- 2015 count
- Owner
- County
- County Highway Agency
About this bridge
Walnut DR over Tehama-Colusa Canal is a prestressed concrete stringer/multi-beam or girder carrying Walnut DR over Tehama-Colusa Canal in Colusa County, California. It was built in 1978, so it is 47 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 178 vehicles a day, roughly 5% of them trucks, projected to reach 332 by 2046. The structure is 78 ft (23.8 m) long and 35 ft wide. If it were closed, the detour would be 11.8 mi (19 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 | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Walnut DR over Tehama-Colusa Canal built?
It was built in 1978, making it 47 years old in 2025.
What condition is Walnut DR over Tehama-Colusa Canal 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 December 2024.
How much traffic does Walnut DR over Tehama-Colusa Canal carry?
About 178 vehicles per day (2015 count), of which roughly 5% are trucks.
How long is Walnut DR over Tehama-Colusa Canal?
The structure is 78 ft (23.8 m) long with a longest span of 77 ft (23.5 m) and a deck 35 ft wide.
Who owns Walnut DR over Tehama-Colusa Canal?
It is owned by the County Highway Agency.