State Route 1 over UP RR & AMTRAK
GoodSan Luis Obispo County, California · 05-SLO-001-R12.60 · Structure no. 49 0012
- Built
- 1964
- 61 years old
- Condition
- Good
- inspected September 2023
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 260 ft
- 3 main spans
- Daily traffic
- 7,400
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 1 over UP RR & AMTRAK is a concrete continuous box beam or girders - multiple carrying State Route 1 over UP RR & AMTRAK in San Luis Obispo County, California. It was built in 1964, so it is 61 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 7,400 vehicles a day, roughly 16% of them trucks, projected to reach 14,929 by 2043. The structure is 260 ft (79.2 m) long and 40 ft wide. If it were closed, the detour would be 3.1 mi (5 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 State Route 1 over UP RR & AMTRAK built?
It was built in 1964, making it 61 years old in 2025.
What condition is State Route 1 over UP RR & AMTRAK 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 September 2023.
How much traffic does State Route 1 over UP RR & AMTRAK carry?
About 7,400 vehicles per day (2009 count), of which roughly 16% are trucks.
How long is State Route 1 over UP RR & AMTRAK?
The structure is 260 ft (79.2 m) long with a longest span of 97 ft (29.5 m) and a deck 40 ft wide.
Who owns State Route 1 over UP RR & AMTRAK?
It is owned by the State Highway Agency.