State Route 20 over Salt Creek
GoodColusa County, California · 03-COL-020-20.21 · Structure no. 15 0022
- Built
- 1959
- 66 years old
- Condition
- Good
- inspected January 2025
- Type
- Slab
- Concrete Continuous
- Length
- 103 ft
- 4 main spans
- Daily traffic
- 5,800
- 2013 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 20 over Salt Creek is a concrete continuous slab carrying State Route 20 over Salt Creek in Colusa County, California. It was built in 1959, so it is 66 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 5,800 vehicles a day, roughly 11% of them trucks, projected to reach 6,960 by 2043. The structure is 103 ft (31.4 m) long and 34 ft wide. If it were closed, the detour would be 54.1 mi (87 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 20 over Salt Creek built?
It was built in 1959, making it 66 years old in 2025.
What condition is State Route 20 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 January 2025.
How much traffic does State Route 20 over Salt Creek carry?
About 5,800 vehicles per day (2013 count), of which roughly 11% are trucks.
How long is State Route 20 over Salt Creek?
The structure is 103 ft (31.4 m) long with a longest span of 25 ft (7.6 m) and a deck 34 ft wide.
Who owns State Route 20 over Salt Creek?
It is owned by the State Highway Agency.