Los Alisos Blvd over Aliso Creek
PoorOrange County, California · 0.29 Mi. S/O Muirland Bl. · Structure no. 55C0219
- Built
- 1973
- 52 years old
- Condition
- Poor
- inspected September 2024
- Type
- Box Beam or Girders - Multiple
- Concrete
- Length
- 90 ft
- 1 main span
- Daily traffic
- 45,250
- 2020 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Los Alisos Blvd over Aliso Creek is a concrete box beam or girders - multiple carrying Los Alisos Blvd over Aliso Creek in Orange County, California. It was built in 1973, so it is 52 years old, younger 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 45,250 vehicles a day, roughly 1% of them trucks, projected to reach 67,276 by 2045. The structure is 90 ft (27.4 m) long and 88 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Los Alisos Blvd over Aliso Creek built?
It was built in 1973, making it 52 years old in 2025.
What condition is Los Alisos Blvd over Aliso Creek 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 September 2024.
How much traffic does Los Alisos Blvd over Aliso Creek carry?
About 45,250 vehicles per day (2020 count), of which roughly 1% are trucks.
How long is Los Alisos Blvd over Aliso Creek?
The structure is 90 ft (27.4 m) long with a longest span of 85 ft (25.9 m) and a deck 88 ft wide.
Who owns Los Alisos Blvd over Aliso Creek?
It is owned by the City or Municipal Highway Agency.