Manchester Blvd over Route 405 & MNCHSTR-N405
FairLos Angeles County, California · 07-LA-405-23.36-ING · Structure no. 53 1246
- Built
- 1961
- 64 years old
- Condition
- Fair
- inspected January 2025
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 196 ft
- 3 main spans
- Daily traffic
- 150,000
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Manchester Blvd over Route 405 & MNCHSTR-N405 is a concrete continuous box beam or girders - multiple carrying Manchester Blvd over Route 405 & MNCHSTR-N405 in Los Angeles County, California. It was built in 1961, so it is 64 years old, older than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 150,000 vehicles a day, roughly 5% of them trucks, projected to reach 165,667 by 2044. The structure is 196 ft (59.7 m) long and 96 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 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Manchester Blvd over Route 405 & MNCHSTR-N405 built?
It was built in 1961, making it 64 years old in 2025.
What condition is Manchester Blvd over Route 405 & MNCHSTR-N405 in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2025.
How much traffic does Manchester Blvd over Route 405 & MNCHSTR-N405 carry?
About 150,000 vehicles per day (2022 count), of which roughly 5% are trucks.
How long is Manchester Blvd over Route 405 & MNCHSTR-N405?
The structure is 196 ft (59.7 m) long with a longest span of 82 ft (25 m) and a deck 96 ft wide.
Who owns Manchester Blvd over Route 405 & MNCHSTR-N405?
It is owned by the State Highway Agency.