E/B Alton Parkway over BNSF RY AMTRAK Metrolink
GoodOrange County, California · 0.3 MI Ne/O Muirland Blvd · Structure no. 55C0486R
- Built
- 1980
- 45 years old
- Condition
- Good
- inspected April 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 177 ft
- 2 main spans
- Daily traffic
- 18,200
- 2018 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
E/B Alton Parkway over BNSF RY AMTRAK Metrolink is a prestressed concrete continuous box beam or girders - multiple carrying E/B Alton Parkway over BNSF RY AMTRAK Metrolink in Orange County, California. It was built in 1980, so it is 45 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 18,200 vehicles a day, roughly 7% of them trucks, projected to reach 32,800 by 2041. The structure is 177 ft (53.9 m) long and 50 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 E/B Alton Parkway over BNSF RY AMTRAK Metrolink built?
It was built in 1980, making it 45 years old in 2025.
What condition is E/B Alton Parkway over BNSF RY AMTRAK Metrolink 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 April 2024.
How much traffic does E/B Alton Parkway over BNSF RY AMTRAK Metrolink carry?
About 18,200 vehicles per day (2018 count), of which roughly 7% are trucks.
How long is E/B Alton Parkway over BNSF RY AMTRAK Metrolink?
The structure is 177 ft (53.9 m) long with a longest span of 129 ft (39.2 m) and a deck 50 ft wide.
Who owns E/B Alton Parkway over BNSF RY AMTRAK Metrolink?
It is owned by the City or Municipal Highway Agency.