Armstrong Road over Willow Creek
GoodLassen County, California · 0.25 Mi. S. of Susanv. RD · Structure no. 07C0086
- Built
- 1995
- 30 years old
- Condition
- Good
- inspected October 2023
- Type
- Slab
- Concrete Continuous
- Length
- 52 ft
- 2 main spans
- Daily traffic
- 50
- 1998 count
- Owner
- County
- County Highway Agency
About this bridge
Armstrong Road over Willow Creek is a concrete continuous slab carrying Armstrong Road over Willow Creek in Lassen County, California. It was built in 1995, so it is 30 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 50 vehicles a day, projected to reach 65 by 2041. The structure is 52 ft (16 m) long and 25 ft wide. If it were closed, the detour would be 123.7 mi (199 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 Armstrong Road over Willow Creek built?
It was built in 1995, making it 30 years old in 2025.
What condition is Armstrong Road over Willow 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 October 2023.
How much traffic does Armstrong Road over Willow Creek carry?
About 50 vehicles per day (1998 count).
How long is Armstrong Road over Willow Creek?
The structure is 52 ft (16 m) long with a longest span of 25 ft (7.7 m) and a deck 25 ft wide.
Who owns Armstrong Road over Willow Creek?
It is owned by the County Highway Agency.