State Route 1 SB over Old Creek
GoodSan Luis Obispo County, California · 05-SLO-001-34.46 · Structure no. 49 0070L
- Built
- 1961
- 64 years old
- Condition
- Good
- inspected September 2023
- Type
- Tee Beam
- Concrete Continuous
- Length
- 159 ft
- 3 main spans
- Daily traffic
- 6,250
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 1 SB over Old Creek is a concrete continuous tee beam carrying State Route 1 SB over Old Creek in San Luis Obispo County, California. It was built in 1961, so it is 64 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 6,250 vehicles a day, projected to reach 8,103 by 2045. The structure is 159 ft (48.5 m) long and 40 ft wide. If it were closed, the detour would be 8.1 mi (13 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. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 1 SB over Old Creek built?
It was built in 1961, making it 64 years old in 2025.
What condition is State Route 1 SB over Old 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 2023.
How much traffic does State Route 1 SB over Old Creek carry?
About 6,250 vehicles per day (2009 count).
How long is State Route 1 SB over Old Creek?
The structure is 159 ft (48.5 m) long with a longest span of 52 ft (15.8 m) and a deck 40 ft wide.
Who owns State Route 1 SB over Old Creek?
It is owned by the State Highway Agency.