Road 23N60 over Lower Marble Creek
GoodButte County, California · No Data Entered · Structure no. 051154000001054
- Built
- 1961
- 64 years old, rebuilt 2000
- Condition
- Good
- inspected August 2023
- Type
- Box Beam or Girders - Single or Spread
- Concrete
- Length
- 155 ft
- 3 main spans
- Daily traffic
- 50
- Owner
- Federal
- U.S. Forest Service
About this bridge
Road 23N60 over Lower Marble Creek is a concrete box beam or girders - single or spread carrying Road 23N60 over Lower Marble Creek in Butte County, California. It was built in 1961 and reconstructed in 2000, so it is 64 years old, older than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 50 vehicles a day, projected to reach 75 by 2045. The structure is 155 ft (47.2 m) long and 19 ft wide. If it were closed, the detour would be 620.7 mi (999 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| 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 Road 23N60 over Lower Marble Creek built?
It was built in 1961, making it 64 years old in 2025. It was reconstructed in 2000.
What condition is Road 23N60 over Lower Marble Creek in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2023.
How much traffic does Road 23N60 over Lower Marble Creek carry?
About 50 vehicles per day (latest count).
How long is Road 23N60 over Lower Marble Creek?
The structure is 155 ft (47.2 m) long with a longest span of 51 ft (15.5 m) and a deck 19 ft wide.
Who owns Road 23N60 over Lower Marble Creek?
It is owned by the U.S. Forest Service.