State Route 1 over US HWY 101 (@pm 29.07)
GoodSan Luis Obispo County, California · 05-SLO-001-16.77-SLO · Structure no. 49 0144
- Built
- 1953
- 72 years old
- Condition
- Good
- inspected September 2021
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 129 ft
- 2 main spans
- Daily traffic
- 28,000
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 1 over US HWY 101 (@pm 29.07) is a concrete continuous box beam or girders - multiple carrying State Route 1 over US HWY 101 (@pm 29.07) in San Luis Obispo County, California. It was built in 1953, so it is 72 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 28,000 vehicles a day, roughly 3% of them trucks, projected to reach 25,289 by 2039. The structure is 129 ft (39.3 m) long and 64 ft wide. If it were closed, the detour would be 1.9 mi (3 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 US HWY 101 (@pm 29.07) built?
It was built in 1953, making it 72 years old in 2025.
What condition is State Route 1 over US HWY 101 (@pm 29.07) 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 US HWY 101 (@pm 29.07) carry?
About 28,000 vehicles per day (2009 count), of which roughly 3% are trucks.
How long is State Route 1 over US HWY 101 (@pm 29.07)?
The structure is 129 ft (39.3 m) long with a longest span of 63 ft (19.2 m) and a deck 64 ft wide.
Who owns State Route 1 over US HWY 101 (@pm 29.07)?
It is owned by the State Highway Agency.