State Route 1 over San Juan Creek
GoodOrange County, California · 12-ORA-001-R0.97-DAPT · Structure no. 55 0547
- Built
- 1976
- 49 years old
- Condition
- Good
- inspected June 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 508 ft
- 5 main spans
- Daily traffic
- 37,000
- 2014 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 1 over San Juan Creek is a prestressed concrete continuous box beam or girders - multiple carrying State Route 1 over San Juan Creek in Orange County, California. It was built in 1976, so it is 49 years old, younger 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 37,000 vehicles a day, roughly 6% of them trucks, projected to reach 48,704 by 2040. The structure is 508 ft (154.8 m) long and 74 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. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 1 over San Juan Creek built?
It was built in 1976, making it 49 years old in 2025.
What condition is State Route 1 over San Juan 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 June 2023.
How much traffic does State Route 1 over San Juan Creek carry?
About 37,000 vehicles per day (2014 count), of which roughly 6% are trucks.
How long is State Route 1 over San Juan Creek?
The structure is 508 ft (154.8 m) long with a longest span of 134 ft (40.8 m) and a deck 74 ft wide.
Who owns State Route 1 over San Juan Creek?
It is owned by the State Highway Agency.