Humboldt RD over Butte Creek
FairButte County, California · 6.5 MI E JCT With S.R. 32 · Structure no. 12C0027
- Built
- 1976
- 49 years old
- Condition
- Fair
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Concrete
- Length
- 71 ft
- 2 main spans
- Daily traffic
- 401
- 2017 count
- Owner
- County
- County Highway Agency
About this bridge
Humboldt RD over Butte Creek is a concrete stringer/multi-beam or girder carrying Humboldt RD over Butte Creek in Butte County, California. It was built in 1976, so it is 49 years old, younger 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 401 vehicles a day, roughly 22% of them trucks, projected to reach 444 by 2046. The structure is 71 ft (21.5 m) long and 29 ft wide. If it were closed, the detour would be 123.7 mi (199 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Humboldt RD over Butte Creek built?
It was built in 1976, making it 49 years old in 2025.
What condition is Humboldt RD over Butte 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 July 2024.
How much traffic does Humboldt RD over Butte Creek carry?
About 401 vehicles per day (2017 count), of which roughly 22% are trucks.
How long is Humboldt RD over Butte Creek?
The structure is 71 ft (21.5 m) long with a longest span of 35 ft (10.6 m) and a deck 29 ft wide.
Who owns Humboldt RD over Butte Creek?
It is owned by the County Highway Agency.