State Route 99 over Sunset Canal
GoodTehama County, California · 02-TEH-099-15.55 · Structure no. 08 0010
- Built
- 1920
- 105 years old, rebuilt 1952
- Condition
- Good
- inspected May 2024
- Type
- Tee Beam
- Concrete
- Length
- 26 ft
- 1 main span
- Daily traffic
- 9,300
- 2015 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 99 over Sunset Canal is a concrete tee beam carrying State Route 99 over Sunset Canal in Tehama County, California. It was built in 1920 and reconstructed in 1952, so it is 105 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 9,300 vehicles a day, roughly 14% of them trucks, projected to reach 8,981 by 2046. The structure is 26 ft (7.9 m) long and 42 ft wide. If it were closed, the detour would be 24.2 mi (39 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 State Route 99 over Sunset Canal built?
It was built in 1920, making it 105 years old in 2025. It was reconstructed in 1952.
What condition is State Route 99 over Sunset 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 May 2024.
How much traffic does State Route 99 over Sunset Canal carry?
About 9,300 vehicles per day (2015 count), of which roughly 14% are trucks.
How long is State Route 99 over Sunset Canal?
The structure is 26 ft (7.9 m) long with a longest span of 25 ft (7.6 m) and a deck 42 ft wide.
Who owns State Route 99 over Sunset Canal?
It is owned by the State Highway Agency.