S405-N&S101 Conn over Los Angeles River
GoodLos Angeles County, California · 07-LA-405-39.65-LA · Structure no. 53 1160F
- Built
- 1958
- 67 years old, rebuilt 1990
- Condition
- Good
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 70 ft
- 1 main span
- Daily traffic
- 42,500
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
S405-N&S101 Conn over Los Angeles River is a steel stringer/multi-beam or girder carrying S405-N&S101 Conn over Los Angeles River in Los Angeles County, California. It was built in 1958 and reconstructed in 1990, so it is 67 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 42,500 vehicles a day, roughly 5% of them trucks, projected to reach 64,656 by 2040. The structure is 70 ft (21.2 m) long and 59 ft wide. If it were closed, the detour would be 1.2 mi (2 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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| 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 S405-N&S101 Conn over Los Angeles River built?
It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1990.
What condition is S405-N&S101 Conn over Los Angeles River 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 June 2023.
How much traffic does S405-N&S101 Conn over Los Angeles River carry?
About 42,500 vehicles per day (2019 count), of which roughly 5% are trucks.
How long is S405-N&S101 Conn over Los Angeles River?
The structure is 70 ft (21.2 m) long with a longest span of 70 ft (21.2 m) and a deck 59 ft wide.
Who owns S405-N&S101 Conn over Los Angeles River?
It is owned by the State Highway Agency.