U.S. Highway 101 over Dimmick Road
GoodHumboldt County, California · 01-HUM-101-R19.70 · Structure no. 04 0192
- Built
- 1964
- 61 years old
- Condition
- Good
- inspected September 2024
- Type
- Tee Beam
- Concrete Continuous
- Length
- 105 ft
- 3 main spans
- Daily traffic
- 5,900
- 2014 count
- Owner
- State
- State Highway Agency
About this bridge
U.S. Highway 101 over Dimmick Road is a concrete continuous tee beam carrying U.S. Highway 101 over Dimmick Road in Humboldt County, California. It was built in 1964, so it is 61 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 5,900 vehicles a day, roughly 16% of them trucks, projected to reach 8,771 by 2041. The structure is 105 ft (31.9 m) long and 63 ft wide. If it were closed, the detour would be 47.2 mi (76 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was U.S. Highway 101 over Dimmick Road built?
It was built in 1964, making it 61 years old in 2025.
What condition is U.S. Highway 101 over Dimmick 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 September 2024.
How much traffic does U.S. Highway 101 over Dimmick Road carry?
About 5,900 vehicles per day (2014 count), of which roughly 16% are trucks.
How long is U.S. Highway 101 over Dimmick Road?
The structure is 105 ft (31.9 m) long with a longest span of 43 ft (13 m) and a deck 63 ft wide.
Who owns U.S. Highway 101 over Dimmick Road?
It is owned by the State Highway Agency.