US Highway 101 SB over ST RTE 166 (@pm 8.93)
FairSan Luis Obispo County, California · 05-SLO-101-0.80 · Structure no. 49 0121L
- Built
- 1962
- 63 years old
- Condition
- Fair
- inspected January 2024
- Type
- Tee Beam
- Concrete Continuous
- Length
- 113 ft
- 3 main spans
- Daily traffic
- 25,500
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
US Highway 101 SB over ST RTE 166 (@pm 8.93) is a concrete continuous tee beam carrying US Highway 101 SB over ST RTE 166 (@pm 8.93) in San Luis Obispo 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 fair condition with a lowest component rating of 6 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 25,500 vehicles a day, projected to reach 51,047 by 2046. The structure is 113 ft (34.3 m) long and 40 ft wide.
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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 ST RTE 166 (@pm 8.93) built?
It was built in 1962, making it 63 years old in 2025.
What condition is US Highway 101 SB over ST RTE 166 (@pm 8.93) 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 January 2024.
How much traffic does US Highway 101 SB over ST RTE 166 (@pm 8.93) carry?
About 25,500 vehicles per day (2009 count).
How long is US Highway 101 SB over ST RTE 166 (@pm 8.93)?
The structure is 113 ft (34.3 m) long with a longest span of 47 ft (14.3 m) and a deck 40 ft wide.
Who owns US Highway 101 SB over ST RTE 166 (@pm 8.93)?
It is owned by the State Highway Agency.