U.S. Highway 101 over South Fork Eel River
GoodHumboldt County, California · 01-HUM-101-R7.87 · Structure no. 04 0155
- Built
- 1969
- 56 years old
- Condition
- Good
- inspected September 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 701 ft
- 3 main spans
- Daily traffic
- 5,700
- 2014 count
- Owner
- State
- State Highway Agency
About this bridge
U.S. Highway 101 over South Fork Eel River is a prestressed concrete continuous box beam or girders - multiple carrying U.S. Highway 101 over South Fork Eel River in Humboldt County, California. It was built in 1969, so it is 56 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 5,700 vehicles a day, roughly 16% of them trucks, projected to reach 6,057 by 2041. The structure is 701 ft (213.7 m) long and 62 ft wide. If it were closed, the detour would be 37.9 mi (61 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was U.S. Highway 101 over South Fork Eel River built?
It was built in 1969, making it 56 years old in 2025.
What condition is U.S. Highway 101 over South Fork Eel River 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 September 2024.
How much traffic does U.S. Highway 101 over South Fork Eel River carry?
About 5,700 vehicles per day (2014 count), of which roughly 16% are trucks.
How long is U.S. Highway 101 over South Fork Eel River?
The structure is 701 ft (213.7 m) long with a longest span of 270 ft (82.3 m) and a deck 62 ft wide.
Who owns U.S. Highway 101 over South Fork Eel River?
It is owned by the State Highway Agency.