Allison Ranch Road over Wolf Creek
GoodNevada County, California · 0.6 MI N/O SR 49 · Structure no. 17C0092
- Built
- 1999
- 26 years old
- Condition
- Good
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 46 ft
- 1 main span
- Daily traffic
- 265
- 2014 count
- Owner
- County
- County Highway Agency
About this bridge
Allison Ranch Road over Wolf Creek is a steel stringer/multi-beam or girder carrying Allison Ranch Road over Wolf Creek in Nevada County, California. It was built in 1999, so it is 26 years old, younger 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 265 vehicles a day, roughly 2% of them trucks, projected to reach 226 by 2043. The structure is 46 ft (14.1 m) long and 16 ft wide. If it were closed, the detour would be 6.8 mi (11 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 Allison Ranch Road over Wolf Creek built?
It was built in 1999, making it 26 years old in 2025.
What condition is Allison Ranch Road over Wolf 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 March 2023.
How much traffic does Allison Ranch Road over Wolf Creek carry?
About 265 vehicles per day (2014 count), of which roughly 2% are trucks.
How long is Allison Ranch Road over Wolf Creek?
The structure is 46 ft (14.1 m) long with a longest span of 46 ft (14.1 m) and a deck 16 ft wide.
Who owns Allison Ranch Road over Wolf Creek?
It is owned by the County Highway Agency.