State Route 70 over Long Valley Creek
FairLassen County, California · 02-LAS-070-1.97 · Structure no. 07 0058
- Built
- 1952
- 73 years old, rebuilt 1956
- Condition
- Fair
- inspected May 2023
- Type
- Culvert
- Concrete Continuous
- Length
- 26 ft
- 2 main spans
- Daily traffic
- 4,200
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 70 over Long Valley Creek is a concrete continuous culvert carrying State Route 70 over Long Valley Creek in Lassen County, California. It was built in 1952 and reconstructed in 1956, so it is 73 years old, older than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 4,200 vehicles a day, roughly 6% of them trucks, projected to reach 5,509 by 2040. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 52.8 mi (85 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 9 Excellent | No problems noted. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 70 over Long Valley Creek built?
It was built in 1952, making it 73 years old in 2025. It was reconstructed in 1956.
What condition is State Route 70 over Long Valley Creek in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2023.
How much traffic does State Route 70 over Long Valley Creek carry?
About 4,200 vehicles per day (2009 count), of which roughly 6% are trucks.
How long is State Route 70 over Long Valley Creek?
The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m).
Who owns State Route 70 over Long Valley Creek?
It is owned by the State Highway Agency.