Los Osos Valley RD over US Highway 101
GoodSan Luis Obispo County, California · 05-SLO-101-25.91-SLO · Structure no. 49 0185L
- Built
- 1961
- 64 years old, rebuilt 1986
- Condition
- Good
- inspected July 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 301 ft
- 4 main spans
- Daily traffic
- 11,875
- 2016 count
- Owner
- State
- State Highway Agency
About this bridge
Los Osos Valley RD over US Highway 101 is a concrete continuous box beam or girders - multiple carrying Los Osos Valley RD over US Highway 101 in San Luis Obispo County, California. It was built in 1961 and reconstructed in 1986, so it is 64 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 11,875 vehicles a day, roughly 4% of them trucks, projected to reach 18,001 by 2042. The structure is 301 ft (91.6 m) long and 48 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Los Osos Valley RD over US Highway 101 built?
It was built in 1961, making it 64 years old in 2025. It was reconstructed in 1986.
What condition is Los Osos Valley RD over US Highway 101 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 2024.
How much traffic does Los Osos Valley RD over US Highway 101 carry?
About 11,875 vehicles per day (2016 count), of which roughly 4% are trucks.
How long is Los Osos Valley RD over US Highway 101?
The structure is 301 ft (91.6 m) long with a longest span of 103 ft (31.4 m) and a deck 48 ft wide.
Who owns Los Osos Valley RD over US Highway 101?
It is owned by the State Highway Agency.