Interstate 405 over Mcdonald Street
FairLos Angeles County, California · 07-LA-405-26.45-CLC · Structure no. 53 1347
- Built
- 1960
- 65 years old, rebuilt 2009
- Condition
- Fair
- inspected February 2025
- Type
- Box Beam or Girders - Multiple
- Concrete
- Length
- 65 ft
- 1 main span
- Daily traffic
- 294,000
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 405 over Mcdonald Street is a concrete box beam or girders - multiple carrying Interstate 405 over Mcdonald Street in Los Angeles County, California. It was built in 1960 and reconstructed in 2009, so it is 65 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 294,000 vehicles a day, roughly 4% of them trucks, projected to reach 414,167 by 2043. The structure is 65 ft (19.8 m) long and 203 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Interstate 405 over Mcdonald Street built?
It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2009.
What condition is Interstate 405 over Mcdonald Street 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 February 2025.
How much traffic does Interstate 405 over Mcdonald Street carry?
About 294,000 vehicles per day (2020 count), of which roughly 4% are trucks.
How long is Interstate 405 over Mcdonald Street?
The structure is 65 ft (19.8 m) long with a longest span of 65 ft (19.8 m) and a deck 203 ft wide.
Who owns Interstate 405 over Mcdonald Street?
It is owned by the State Highway Agency.