N57-W91 Conn Ramp over State Route 91
FairOrange County, California · 12-ORA-057-15.57-ANA · Structure no. 55 0446G
- Built
- 1974
- 51 years old
- Condition
- Fair
- inspected January 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 256 ft
- 2 main spans
- Daily traffic
- 15,410
- 2014 count
- Owner
- State
- State Highway Agency
About this bridge
N57-W91 Conn Ramp over State Route 91 is a concrete continuous box beam or girders - multiple carrying N57-W91 Conn Ramp over State Route 91 in Orange County, California. It was built in 1974, so it is 51 years old, younger than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 15,410 vehicles a day, roughly 8% of them trucks, projected to reach 18,420 by 2044. The structure is 256 ft (78 m) long and 26 ft wide. If it were closed, the detour would be 3.1 mi (5 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was N57-W91 Conn Ramp over State Route 91 built?
It was built in 1974, making it 51 years old in 2025.
What condition is N57-W91 Conn Ramp over State Route 91 in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2024.
How much traffic does N57-W91 Conn Ramp over State Route 91 carry?
About 15,410 vehicles per day (2014 count), of which roughly 8% are trucks.
How long is N57-W91 Conn Ramp over State Route 91?
The structure is 256 ft (78 m) long with a longest span of 127 ft (38.7 m) and a deck 26 ft wide.
Who owns N57-W91 Conn Ramp over State Route 91?
It is owned by the State Highway Agency.