Sprowl Creek Road over US Highway 101
FairHumboldt County, California · 01-HUM-101-R11.12 · Structure no. 04 0195
- Built
- 1967
- 58 years old
- Condition
- Fair
- inspected September 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 133 ft
- 2 main spans
- Daily traffic
- 1,000
- 2014 count
- Owner
- State
- State Highway Agency
About this bridge
Sprowl Creek Road over US Highway 101 is a concrete continuous box beam or girders - multiple carrying Sprowl Creek Road over US Highway 101 in Humboldt County, California. It was built in 1967, so it is 58 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 1,000 vehicles a day, roughly 10% of them trucks, projected to reach 1,775 by 2041. The structure is 133 ft (40.6 m) long and 61 ft wide. If it were closed, the detour would be 1.2 mi (2 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 |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Sprowl Creek Road over US Highway 101 built?
It was built in 1967, making it 58 years old in 2025.
What condition is Sprowl Creek Road over US Highway 101 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 September 2024.
How much traffic does Sprowl Creek Road over US Highway 101 carry?
About 1,000 vehicles per day (2014 count), of which roughly 10% are trucks.
How long is Sprowl Creek Road over US Highway 101?
The structure is 133 ft (40.6 m) long with a longest span of 81 ft (24.8 m) and a deck 61 ft wide.
Who owns Sprowl Creek Road over US Highway 101?
It is owned by the State Highway Agency.