US Highway 101 NB over Ackerman Creek
GoodMendocino County, California · 01-MEN-101-26.66 · Structure no. 10 0199R
- Built
- 1962
- 63 years old
- Condition
- Good
- inspected October 2024
- Type
- Tee Beam
- Concrete Continuous
- Length
- 182 ft
- 5 main spans
- Daily traffic
- 13,750
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
US Highway 101 NB over Ackerman Creek is a concrete continuous tee beam carrying US Highway 101 NB over Ackerman Creek in Mendocino County, California. It was built in 1962, so it is 63 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 13,750 vehicles a day, roughly 11% of them trucks, projected to reach 23,107 by 2042. The structure is 182 ft (55.5 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US Highway 101 NB over Ackerman Creek built?
It was built in 1962, making it 63 years old in 2025.
What condition is US Highway 101 NB over Ackerman 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 October 2024.
How much traffic does US Highway 101 NB over Ackerman Creek carry?
About 13,750 vehicles per day (2009 count), of which roughly 11% are trucks.
How long is US Highway 101 NB over Ackerman Creek?
The structure is 182 ft (55.5 m) long with a longest span of 40 ft (12.2 m) and a deck 40 ft wide.
Who owns US Highway 101 NB over Ackerman Creek?
It is owned by the State Highway Agency.