U.S. Highway 101 over Salmon Creek
GoodHumboldt County, California · 01-HUM-101-67.87 · Structure no. 04 0020
- Built
- 1957
- 68 years old
- Condition
- Good
- inspected July 2023
- Type
- Tee Beam
- Concrete Continuous
- Length
- 156 ft
- 4 main spans
- Daily traffic
- 21,500
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
U.S. Highway 101 over Salmon Creek is a concrete continuous tee beam carrying U.S. Highway 101 over Salmon Creek in Humboldt County, California. It was built in 1957, so it is 68 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 21,500 vehicles a day, roughly 8% of them trucks, projected to reach 31,109 by 2045. The structure is 156 ft (47.5 m) long and 90 ft wide. If it were closed, the detour would be 59 mi (95 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 Salmon Creek built?
It was built in 1957, making it 68 years old in 2025.
What condition is U.S. Highway 101 over Salmon Creek 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 July 2023.
How much traffic does U.S. Highway 101 over Salmon Creek carry?
About 21,500 vehicles per day (2009 count), of which roughly 8% are trucks.
How long is U.S. Highway 101 over Salmon Creek?
The structure is 156 ft (47.5 m) long with a longest span of 44 ft (13.4 m) and a deck 90 ft wide.
Who owns U.S. Highway 101 over Salmon Creek?
It is owned by the State Highway Agency.