State Route 1 over San Luisito Creek
GoodSan Luis Obispo County, California · 05-SLO-001-25.71 · Structure no. 49 0064
- Built
- 1959
- 66 years old, rebuilt 1966
- Condition
- Good
- inspected September 2021
- Type
- Culvert
- Concrete Continuous
- Length
- 26 ft
- 2 main spans
- Daily traffic
- 18,700
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 1 over San Luisito Creek is a concrete continuous culvert carrying State Route 1 over San Luisito Creek in San Luis Obispo County, California. It was built in 1959 and reconstructed in 1966, so it is 66 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 18,700 vehicles a day, roughly 4% of them trucks, projected to reach 33,753 by 2043. The structure is 26 ft (7.9 m) long and 113 ft wide. If it were closed, the detour would be 29.2 mi (47 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 |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 1 over San Luisito Creek built?
It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1966.
What condition is State Route 1 over San Luisito Creek 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 2021.
How much traffic does State Route 1 over San Luisito Creek carry?
About 18,700 vehicles per day (2009 count), of which roughly 4% are trucks.
How long is State Route 1 over San Luisito Creek?
The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m) and a deck 113 ft wide.
Who owns State Route 1 over San Luisito Creek?
It is owned by the State Highway Agency.