SR 73 NB over State Route 55
GoodOrange County, California · 12-ORA-073-R26.56-CMS · Structure no. 55 0539R
- Built
- 1976
- 49 years old
- Condition
- Good
- inspected May 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 266 ft
- 2 main spans
- Daily traffic
- 86,000
- 2014 count
- Owner
- State
- State Highway Agency
About this bridge
SR 73 NB over State Route 55 is a prestressed concrete continuous box beam or girders - multiple carrying SR 73 NB over State Route 55 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 86,000 vehicles a day, roughly 1% of them trucks, projected to reach 95,500 by 2042. The structure is 266 ft (81.1 m) long and 68 ft wide. If it were closed, the detour would be 1.2 mi (2 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 SR 73 NB over State Route 55 built?
It was built in 1976, making it 49 years old in 2025.
What condition is SR 73 NB over State Route 55 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 May 2024.
How much traffic does SR 73 NB over State Route 55 carry?
About 86,000 vehicles per day (2014 count), of which roughly 1% are trucks.
How long is SR 73 NB over State Route 55?
The structure is 266 ft (81.1 m) long with a longest span of 135 ft (41.1 m) and a deck 68 ft wide.
Who owns SR 73 NB over State Route 55?
It is owned by the State Highway Agency.