State Route 70 WB over Bear River (rio Oso)
FairSutter County, California · 03-SUT-070-8.09 · Structure no. 18 0001L
- Built
- 1961
- 64 years old, rebuilt 2006
- Condition
- Fair
- inspected March 2024
- Type
- Tee Beam
- Concrete Continuous
- Length
- 1,525 ft
- 24 main spans
- Daily traffic
- 15,800
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 70 WB over Bear River (rio Oso) is a concrete continuous tee beam carrying State Route 70 WB over Bear River (rio Oso) in Sutter County, California. It was built in 1961 and reconstructed in 2006, so it is 64 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 5 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 15,800 vehicles a day, roughly 9% of them trucks, projected to reach 33,024 by 2046. The structure is 1,525 ft (464.7 m) long and 42 ft wide. If it were closed, the detour would be 19.3 mi (31 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 |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 WB over Bear River (rio Oso) built?
It was built in 1961, making it 64 years old in 2025. It was reconstructed in 2006.
What condition is State Route 70 WB over Bear River (rio Oso) 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 March 2024.
How much traffic does State Route 70 WB over Bear River (rio Oso) carry?
About 15,800 vehicles per day (2009 count), of which roughly 9% are trucks.
How long is State Route 70 WB over Bear River (rio Oso)?
The structure is 1,525 ft (464.7 m) long with a longest span of 65 ft (19.8 m) and a deck 42 ft wide.
Who owns State Route 70 WB over Bear River (rio Oso)?
It is owned by the State Highway Agency.