State Route 99 SB over Feather River
FairSutter County, California · 03-SUT-099-12.03 · Structure no. 18 0026L
- Built
- 1958
- 67 years old, rebuilt 2004
- Condition
- Fair
- inspected May 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 3,186 ft
- 31 main spans
- Daily traffic
- 16,100
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 99 SB over Feather River is a prestressed concrete stringer/multi-beam or girder carrying State Route 99 SB over Feather River in Sutter County, California. It was built in 1958 and reconstructed in 2004, so it is 67 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 16,100 vehicles a day, roughly 10% of them trucks, projected to reach 32,561 by 2044. The structure is 3,186 ft (971.1 m) long and 44 ft wide. If it were closed, the detour would be 36 mi (58 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 99 SB over Feather River built?
It was built in 1958, making it 67 years old in 2025. It was reconstructed in 2004.
What condition is State Route 99 SB over Feather River 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 May 2024.
How much traffic does State Route 99 SB over Feather River carry?
About 16,100 vehicles per day (2019 count), of which roughly 10% are trucks.
How long is State Route 99 SB over Feather River?
The structure is 3,186 ft (971.1 m) long with a longest span of 105 ft (32 m) and a deck 44 ft wide.
Who owns State Route 99 SB over Feather River?
It is owned by the State Highway Agency.