Road 16N30 over Alley Creek
GoodLake County, California · 1.6 Mi. N.E. Uplake R.S. · Structure no. 050854000001006
- Built
- 1972
- 53 years old
- Condition
- Good
- inspected August 2023
- Type
- Slab
- Concrete
- Length
- 43 ft
- 1 main span
- Daily traffic
- 25
- 1992 count
- Owner
- Federal
- U.S. Forest Service
About this bridge
Road 16N30 over Alley Creek is a concrete slab carrying Road 16N30 over Alley Creek in Lake County, California. It was built in 1972, so it is 53 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 25 vehicles a day, projected to reach 37 by 2045. The structure is 43 ft (13 m) long and 15 ft wide. If it were closed, the detour would be 9.9 mi (16 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Road 16N30 over Alley Creek built?
It was built in 1972, making it 53 years old in 2025.
What condition is Road 16N30 over Alley 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 16N30 over Alley Creek carry?
About 25 vehicles per day (1992 count).
How long is Road 16N30 over Alley Creek?
The structure is 43 ft (13 m) long with a longest span of 40 ft (12.2 m) and a deck 15 ft wide.
Who owns Road 16N30 over Alley Creek?
It is owned by the U.S. Forest Service.