State Route 70 over Simmerly Slough
GoodYuba County, California · 03-YUB-070-16.01 · Structure no. 16 0055
- Built
- 2022
- 3 years old
- Condition
- Good
- inspected March 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 1,061 ft
- 5 main spans
- Daily traffic
- 9,700
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 70 over Simmerly Slough is a prestressed concrete continuous box beam or girders - multiple carrying State Route 70 over Simmerly Slough in Yuba County, California. It was built in 2022, so it is 3 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 9,700 vehicles a day, roughly 13% of them trucks, projected to reach 20,318 by 2044. The structure is 1,061 ft (323.4 m) long and 86 ft wide. If it were closed, the detour would be 9.9 mi (16 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 70 over Simmerly Slough built?
It was built in 2022, making it 3 years old in 2025.
What condition is State Route 70 over Simmerly Slough 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 2024.
How much traffic does State Route 70 over Simmerly Slough carry?
About 9,700 vehicles per day (2009 count), of which roughly 13% are trucks.
How long is State Route 70 over Simmerly Slough?
The structure is 1,061 ft (323.4 m) long with a longest span of 235 ft (71.6 m) and a deck 86 ft wide.
Who owns State Route 70 over Simmerly Slough?
It is owned by the State Highway Agency.