State Route 99 SB over Little Chico Creek
FairButte County, California · 03-BUT-099-R32.20-CHC · Structure no. 12 0148L
- Built
- 1965
- 60 years old
- Condition
- Fair
- inspected May 2023
- Type
- Box Beam or Girders - Multiple
- Concrete
- Length
- 80 ft
- 1 main span
- Daily traffic
- 24,750
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 99 SB over Little Chico Creek is a concrete box beam or girders - multiple carrying State Route 99 SB over Little Chico Creek in Butte County, California. It was built in 1965, so it is 60 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 24,750 vehicles a day, roughly 7% of them trucks, projected to reach 46,308 by 2041. The structure is 80 ft (24.4 m) long and 46 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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 99 SB over Little Chico Creek built?
It was built in 1965, making it 60 years old in 2025.
What condition is State Route 99 SB over Little Chico Creek 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 2023.
How much traffic does State Route 99 SB over Little Chico Creek carry?
About 24,750 vehicles per day (2009 count), of which roughly 7% are trucks.
How long is State Route 99 SB over Little Chico Creek?
The structure is 80 ft (24.4 m) long with a longest span of 79 ft (24.1 m) and a deck 46 ft wide.
Who owns State Route 99 SB over Little Chico Creek?
It is owned by the State Highway Agency.