US Highway 101 N over Route 20
GoodMendocino County, California · 01-MEN-101-T43.75 · Structure no. 10 0128R
- Built
- 2016
- 9 years old
- Condition
- Good
- inspected April 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 154 ft
- 1 main span
- Daily traffic
- 8,000
- 2017 count
- Owner
- State
- State Highway Agency
About this bridge
US Highway 101 N over Route 20 is a prestressed concrete box beam or girders - multiple carrying US Highway 101 N over Route 20 in Mendocino County, California. It was built in 2016, so it is 9 years old, younger 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 8,000 vehicles a day, projected to reach 12,283 by 2041. The structure is 154 ft (47 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 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 US Highway 101 N over Route 20 built?
It was built in 2016, making it 9 years old in 2025.
What condition is US Highway 101 N over Route 20 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 April 2023.
How much traffic does US Highway 101 N over Route 20 carry?
About 8,000 vehicles per day (2017 count).
How long is US Highway 101 N over Route 20?
The structure is 154 ft (47 m) long with a longest span of 152 ft (46.3 m) and a deck 42 ft wide.
Who owns US Highway 101 N over Route 20?
It is owned by the State Highway Agency.