Canyon Rim Road over Walnut Canyon Channel
GoodOrange County, California · 100 N/O Nohl Ranch Road · Structure no. 55C0533
- Built
- 1972
- 53 years old
- Condition
- Good
- inspected September 2023
- Type
- Culvert
- Concrete
- Length
- 23 ft
- 2 main spans
- Daily traffic
- 4,400
- 2019 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Canyon Rim Road over Walnut Canyon Channel is a concrete culvert carrying Canyon Rim Road over Walnut Canyon Channel in Orange County, California. It was built in 1972, so it is 53 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 4,400 vehicles a day, roughly 1% of them trucks, projected to reach 6,987 by 2041. The structure is 23 ft (7 m) long and 83 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 |
|---|---|---|
| Channel and channel protection | 9 Excellent | No problems noted. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Canyon Rim Road over Walnut Canyon Channel built?
It was built in 1972, making it 53 years old in 2025.
What condition is Canyon Rim Road over Walnut Canyon Channel 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 2023.
How much traffic does Canyon Rim Road over Walnut Canyon Channel carry?
About 4,400 vehicles per day (2019 count), of which roughly 1% are trucks.
How long is Canyon Rim Road over Walnut Canyon Channel?
The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m) and a deck 83 ft wide.
Who owns Canyon Rim Road over Walnut Canyon Channel?
It is owned by the City or Municipal Highway Agency.