US Highway 101 SB over SR 46 (@pm 21.96)
GoodSan Luis Obispo County, California · 05-SLO-101-54.11-PSRS · Structure no. 49 0196L
- Built
- 1966
- 59 years old
- Condition
- Good
- inspected October 2023
- Type
- Tee Beam
- Concrete Continuous
- Length
- 110 ft
- 3 main spans
- Daily traffic
- 27,000
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
US Highway 101 SB over SR 46 (@pm 21.96) is a concrete continuous tee beam carrying US Highway 101 SB over SR 46 (@pm 21.96) in San Luis Obispo County, California. It was built in 1966, so it is 59 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 27,000 vehicles a day, roughly 9% of them trucks, projected to reach 36,559 by 2045. The structure is 110 ft (33.5 m) long and 40 ft wide. If it were closed, the detour would be 12.4 mi (20 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 SB over SR 46 (@pm 21.96) built?
It was built in 1966, making it 59 years old in 2025.
What condition is US Highway 101 SB over SR 46 (@pm 21.96) 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 2023.
How much traffic does US Highway 101 SB over SR 46 (@pm 21.96) carry?
About 27,000 vehicles per day (2009 count), of which roughly 9% are trucks.
How long is US Highway 101 SB over SR 46 (@pm 21.96)?
The structure is 110 ft (33.5 m) long with a longest span of 52 ft (15.8 m) and a deck 40 ft wide.
Who owns US Highway 101 SB over SR 46 (@pm 21.96)?
It is owned by the State Highway Agency.