N&S605-N405 Conn over Los Alamitos Channel
GoodOrange County, California · 12-ORA-605-R0.19-LALM · Structure no. 55 0471H
- Built
- 1966
- 59 years old
- Condition
- Good
- inspected September 2024
- Type
- Culvert
- Concrete
- Length
- 42 ft
- 3 main spans
- Daily traffic
- 17,900
- 2015 count
- Owner
- State
- State Highway Agency
About this bridge
N&S605-N405 Conn over Los Alamitos Channel is a concrete culvert carrying N&S605-N405 Conn over Los Alamitos Channel in Orange County, California. It was built in 1966, so it is 59 years old, older 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 17,900 vehicles a day, roughly 3% of them trucks, projected to reach 21,116 by 2041. The structure is 42 ft (12.8 m) long and 48 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 | 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 N&S605-N405 Conn over Los Alamitos Channel built?
It was built in 1966, making it 59 years old in 2025.
What condition is N&S605-N405 Conn over Los Alamitos 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 2024.
How much traffic does N&S605-N405 Conn over Los Alamitos Channel carry?
About 17,900 vehicles per day (2015 count), of which roughly 3% are trucks.
How long is N&S605-N405 Conn over Los Alamitos Channel?
The structure is 42 ft (12.8 m) long with a longest span of 14 ft (4.3 m) and a deck 48 ft wide.
Who owns N&S605-N405 Conn over Los Alamitos Channel?
It is owned by the State Highway Agency.