State Route 1 over Moro Creek
GoodOrange County, California · 12-ORA-001-11.90-LGNB · Structure no. 55 0119
- Built
- 1924
- 101 years old, rebuilt 1932
- Condition
- Good
- inspected June 2023
- Type
- Arch - Deck
- Concrete
- Length
- 23 ft
- 1 main span
- Daily traffic
- 37,250
- 2014 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 1 over Moro Creek is a concrete arch - deck carrying State Route 1 over Moro Creek in Orange County, California. It was built in 1924 and reconstructed in 1932, so it is 101 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 37,250 vehicles a day, projected to reach 47,687 by 2040. The structure is 23 ft (7 m) long and 84 ft wide. If it were closed, the detour would be 19.9 mi (32 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 |
|---|---|---|
| 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 over Moro Creek built?
It was built in 1924, making it 101 years old in 2025. It was reconstructed in 1932.
What condition is State Route 1 over Moro 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 Moro Creek carry?
About 37,250 vehicles per day (2014 count).
How long is State Route 1 over Moro Creek?
The structure is 23 ft (7 m) long with a longest span of 22 ft (6.7 m) and a deck 84 ft wide.
Who owns State Route 1 over Moro Creek?
It is owned by the State Highway Agency.