Walnut Avenue over Harbor Blvd
PoorOrange County, California · 0.15 MI N/O Valencia DR · Structure no. 55C0384
- Built
- 1970
- 55 years old
- Condition
- Poor
- inspected February 2024
- Type
- Slab
- Concrete Continuous
- Length
- 148 ft
- 4 main spans
- Daily traffic
- 1,200
- 2018 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Walnut Avenue over Harbor Blvd is a concrete continuous slab carrying Walnut Avenue over Harbor Blvd in Orange County, California. It was built in 1970, so it is 55 years old, older than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 1,200 vehicles a day, roughly 1% of them trucks, projected to reach 2,153 by 2042. The structure is 148 ft (45.2 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Walnut Avenue over Harbor Blvd built?
It was built in 1970, making it 55 years old in 2025.
What condition is Walnut Avenue over Harbor Blvd in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in February 2024.
How much traffic does Walnut Avenue over Harbor Blvd carry?
About 1,200 vehicles per day (2018 count), of which roughly 1% are trucks.
How long is Walnut Avenue over Harbor Blvd?
The structure is 148 ft (45.2 m) long with a longest span of 43 ft (13.1 m) and a deck 34 ft wide.
Who owns Walnut Avenue over Harbor Blvd?
It is owned by the City or Municipal Highway Agency.