State Route 162 over Thermalito Afterbay
FairButte County, California · 03-BUT-162-R10.12 · Structure no. 12 0031
- Built
- 1967
- 58 years old
- Condition
- Fair
- inspected May 2023
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 674 ft
- 8 main spans
- Daily traffic
- 2,800
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 162 over Thermalito Afterbay is a concrete continuous box beam or girders - multiple carrying State Route 162 over Thermalito Afterbay in Butte County, California. It was built in 1967, so it is 58 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 2,800 vehicles a day, roughly 9% of them trucks, projected to reach 4,401 by 2041. The structure is 674 ft (205.4 m) long and 42 ft wide. If it were closed, the detour would be 11.8 mi (19 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 162 over Thermalito Afterbay built?
It was built in 1967, making it 58 years old in 2025.
What condition is State Route 162 over Thermalito Afterbay 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 162 over Thermalito Afterbay carry?
About 2,800 vehicles per day (2020 count), of which roughly 9% are trucks.
How long is State Route 162 over Thermalito Afterbay?
The structure is 674 ft (205.4 m) long with a longest span of 84 ft (25.6 m) and a deck 42 ft wide.
Who owns State Route 162 over Thermalito Afterbay?
It is owned by the State Highway Agency.