US Highway 101 SB over UP RR AMTRAK Spring ST
GoodSan Luis Obispo County, California · 05-SLO-101-58.76-PSRS · Structure no. 49 0148L
- Built
- 1958
- 67 years old
- Condition
- Good
- inspected November 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 616 ft
- 7 main spans
- Daily traffic
- 11,500
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
US Highway 101 SB over UP RR AMTRAK Spring ST is a steel stringer/multi-beam or girder carrying US Highway 101 SB over UP RR AMTRAK Spring ST in San Luis Obispo County, California. It was built in 1958, so it is 67 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 11,500 vehicles a day, roughly 17% of them trucks, projected to reach 18,303 by 2043. The structure is 616 ft (187.8 m) long and 31 ft wide. If it were closed, the detour would be 6.2 mi (10 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 UP RR AMTRAK Spring ST built?
It was built in 1958, making it 67 years old in 2025.
What condition is US Highway 101 SB over UP RR AMTRAK Spring ST 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 November 2023.
How much traffic does US Highway 101 SB over UP RR AMTRAK Spring ST carry?
About 11,500 vehicles per day (2009 count), of which roughly 17% are trucks.
How long is US Highway 101 SB over UP RR AMTRAK Spring ST?
The structure is 616 ft (187.8 m) long with a longest span of 113 ft (34.4 m) and a deck 31 ft wide.
Who owns US Highway 101 SB over UP RR AMTRAK Spring ST?
It is owned by the State Highway Agency.