U.S. Highway 101 over Williford Road
GoodHumboldt County, California · 01-HUM-101-30.50 · Structure no. 04 0117
- Built
- 1961
- 64 years old
- Condition
- Good
- inspected August 2023
- Type
- Slab
- Concrete Continuous
- Length
- 113 ft
- 3 main spans
- Daily traffic
- 5,450
- 2010 count
- Owner
- State
- State Highway Agency
About this bridge
U.S. Highway 101 over Williford Road is a concrete continuous slab carrying U.S. Highway 101 over Williford Road in Humboldt County, California. It was built in 1961, so it is 64 years old, older 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 5,450 vehicles a day, roughly 17% of them trucks, projected to reach 8,364 by 2041. The structure is 113 ft (34.4 m) long and 63 ft wide. If it were closed, the detour would be 24.9 mi (40 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was U.S. Highway 101 over Williford Road built?
It was built in 1961, making it 64 years old in 2025.
What condition is U.S. Highway 101 over Williford Road 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 U.S. Highway 101 over Williford Road carry?
About 5,450 vehicles per day (2010 count), of which roughly 17% are trucks.
How long is U.S. Highway 101 over Williford Road?
The structure is 113 ft (34.4 m) long with a longest span of 44 ft (13.4 m) and a deck 63 ft wide.
Who owns U.S. Highway 101 over Williford Road?
It is owned by the State Highway Agency.