El Roble Oc over U.S. Highway 101
FairMendocino County, California · 01-MEN-101-19.68 · Structure no. 10 0076
- Built
- 1963
- 62 years old
- Condition
- Fair
- inspected April 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 171 ft
- 2 main spans
- Daily traffic
- 325
- 2010 count
- Owner
- State
- State Highway Agency
About this bridge
El Roble Oc over U.S. Highway 101 is a prestressed concrete stringer/multi-beam or girder carrying El Roble Oc over U.S. Highway 101 in Mendocino County, California. It was built in 1963, so it is 62 years old, older than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 325 vehicles a day, roughly 2% of them trucks, projected to reach 438 by 2043. The structure is 171 ft (52.1 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was El Roble Oc over U.S. Highway 101 built?
It was built in 1963, making it 62 years old in 2025.
What condition is El Roble Oc over U.S. Highway 101 in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2023.
How much traffic does El Roble Oc over U.S. Highway 101 carry?
About 325 vehicles per day (2010 count), of which roughly 2% are trucks.
How long is El Roble Oc over U.S. Highway 101?
The structure is 171 ft (52.1 m) long with a longest span of 83 ft (25.3 m) and a deck 34 ft wide.
Who owns El Roble Oc over U.S. Highway 101?
It is owned by the State Highway Agency.