RD 424 (bassett) over Willow Creek
PoorPosted for loadLassen County, California · 1.5 MI N of RD A-2 · Structure no. 07C0087
- Built
- 1960
- 65 years old
- Condition
- Poor
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 35 ft
- 2 main spans
- Daily traffic
- 120
- 2011 count
- Owner
- County
- County Highway Agency
About this bridge
RD 424 (bassett) over Willow Creek is a wood or timber stringer/multi-beam or girder carrying RD 424 (bassett) over Willow Creek in Lassen County, California. It was built in 1960, so it is 65 years old, older than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.
It carries about 120 vehicles a day, roughly 2% of them trucks, projected to reach 137 by 2041. The structure is 35 ft (10.7 m) long and 28 ft wide. If it were closed, the detour would be 8.1 mi (13 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| 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 RD 424 (bassett) over Willow Creek built?
It was built in 1960, making it 65 years old in 2025.
What condition is RD 424 (bassett) over Willow Creek in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.
How much traffic does RD 424 (bassett) over Willow Creek carry?
About 120 vehicles per day (2011 count), of which roughly 2% are trucks.
How long is RD 424 (bassett) over Willow Creek?
The structure is 35 ft (10.7 m) long with a longest span of 17 ft (5.2 m) and a deck 28 ft wide.
Who owns RD 424 (bassett) over Willow Creek?
It is owned by the County Highway Agency.