Riosa Road over South Sutter Aqueduct
GoodPlacer County, California · At North Dowd RD · Structure no. 19C0256
- Built
- 2012
- 13 years old
- Condition
- Good
- inspected March 2023
- Type
- Culvert
- Concrete Continuous
- Length
- 23 ft
- 2 main spans
- Daily traffic
- 2,000
- 2013 count
- Owner
- County
- County Highway Agency
About this bridge
Riosa Road over South Sutter Aqueduct is a concrete continuous culvert carrying Riosa Road over South Sutter Aqueduct in Placer County, California. It was built in 2012, so it is 13 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 2,000 vehicles a day, roughly 3% of them trucks, projected to reach 3,000 by 2041. The structure is 23 ft (7 m) long. If it were closed, the detour would be 7.5 mi (12 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 |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Riosa Road over South Sutter Aqueduct built?
It was built in 2012, making it 13 years old in 2025.
What condition is Riosa Road over South Sutter Aqueduct 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 March 2023.
How much traffic does Riosa Road over South Sutter Aqueduct carry?
About 2,000 vehicles per day (2013 count), of which roughly 3% are trucks.
How long is Riosa Road over South Sutter Aqueduct?
The structure is 23 ft (7 m) long with a longest span of 11 ft (3.5 m).
Who owns Riosa Road over South Sutter Aqueduct?
It is owned by the County Highway Agency.