Portola Parkway over Borrego Canyon Wash
GoodOrange County, California · 0.1 Mi. E/O Alton Pkwy. · Structure no. 55C0601
- Built
- 1990
- 35 years old
- Condition
- Good
- inspected September 2022
- Type
- Culvert
- Concrete Continuous
- Length
- 24 ft
- 2 main spans
- Daily traffic
- 9,000
- 2017 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Portola Parkway over Borrego Canyon Wash is a concrete continuous culvert carrying Portola Parkway over Borrego Canyon Wash in Orange County, California. It was built in 1990, so it is 35 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 9,000 vehicles a day, roughly 1% of them trucks, projected to reach 12,868 by 2044. The structure is 24 ft (7.3 m) long and 103 ft wide. If it were closed, the detour would be 3.1 mi (5 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 |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Portola Parkway over Borrego Canyon Wash built?
It was built in 1990, making it 35 years old in 2025.
What condition is Portola Parkway over Borrego Canyon Wash 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 September 2022.
How much traffic does Portola Parkway over Borrego Canyon Wash carry?
About 9,000 vehicles per day (2017 count), of which roughly 1% are trucks.
How long is Portola Parkway over Borrego Canyon Wash?
The structure is 24 ft (7.3 m) long with a longest span of 10 ft (3 m) and a deck 103 ft wide.
Who owns Portola Parkway over Borrego Canyon Wash?
It is owned by the City or Municipal Highway Agency.