Humboldt Road over Dead Horse Slough Divrsn
PoorButte County, California · Btwn Forest & El Monte · Structure no. 12C0114
- Built
- 1957
- 68 years old, rebuilt 2005
- Condition
- Poor
- inspected October 2024
- Type
- Slab
- Concrete Continuous
- Length
- 95 ft
- 4 main spans
- Daily traffic
- 3,500
- 2016 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Humboldt Road over Dead Horse Slough Divrsn is a concrete continuous slab carrying Humboldt Road over Dead Horse Slough Divrsn in Butte County, California. It was built in 1957 and reconstructed in 2005, so it is 68 years old, older than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 3,500 vehicles a day, roughly 3% of them trucks, projected to reach 3,133 by 2042. The structure is 95 ft (28.9 m) long and 52 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Humboldt Road over Dead Horse Slough Divrsn built?
It was built in 1957, making it 68 years old in 2025. It was reconstructed in 2005.
What condition is Humboldt Road over Dead Horse Slough Divrsn in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.
How much traffic does Humboldt Road over Dead Horse Slough Divrsn carry?
About 3,500 vehicles per day (2016 count), of which roughly 3% are trucks.
How long is Humboldt Road over Dead Horse Slough Divrsn?
The structure is 95 ft (28.9 m) long with a longest span of 23 ft (7 m) and a deck 52 ft wide.
Who owns Humboldt Road over Dead Horse Slough Divrsn?
It is owned by the City or Municipal Highway Agency.