State Route 20 over Sutter CO Extensioncanal
FairSutter County, California · 03-SUT-020-12.17 · Structure no. 18 0002
- Built
- 1920
- 105 years old, rebuilt 1964
- Condition
- Fair
- inspected February 2025
- Type
- Culvert
- Concrete Continuous
- Length
- 35 ft
- 2 main spans
- Daily traffic
- 12,000
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 20 over Sutter CO Extensioncanal is a concrete continuous culvert carrying State Route 20 over Sutter CO Extensioncanal in Sutter County, California. It was built in 1920 and reconstructed in 1964, 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 12,000 vehicles a day, roughly 9% of them trucks, projected to reach 17,912 by 2043. The structure is 35 ft (10.6 m) long and 130 ft wide. If it were closed, the detour would be 3.7 mi (6 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 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 Sutter CO Extensioncanal built?
It was built in 1920, making it 105 years old in 2025. It was reconstructed in 1964.
What condition is State Route 20 over Sutter CO Extensioncanal in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2025.
How much traffic does State Route 20 over Sutter CO Extensioncanal carry?
About 12,000 vehicles per day (2009 count), of which roughly 9% are trucks.
How long is State Route 20 over Sutter CO Extensioncanal?
The structure is 35 ft (10.6 m) long with a longest span of 15 ft (4.5 m) and a deck 130 ft wide.
Who owns State Route 20 over Sutter CO Extensioncanal?
It is owned by the State Highway Agency.