Interstate 10 over Robertson Bl National Bl
FairLos Angeles County, California · 07-LA-010-R7.92-LA · Structure no. 53 1557
- Built
- 1964
- 61 years old
- Condition
- Fair
- inspected June 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 438 ft
- 7 main spans
- Daily traffic
- 275,000
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 10 over Robertson Bl National Bl is a concrete continuous box beam or girders - multiple carrying Interstate 10 over Robertson Bl National Bl in Los Angeles County, California. It was built in 1964, so it is 61 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 275,000 vehicles a day, projected to reach 283,085 by 2042. The structure is 438 ft (133.6 m) long and 169 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 Interstate 10 over Robertson Bl National Bl built?
It was built in 1964, making it 61 years old in 2025.
What condition is Interstate 10 over Robertson Bl National Bl 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 June 2024.
How much traffic does Interstate 10 over Robertson Bl National Bl carry?
About 275,000 vehicles per day (2024 count).
How long is Interstate 10 over Robertson Bl National Bl?
The structure is 438 ft (133.6 m) long with a longest span of 114 ft (34.6 m) and a deck 169 ft wide.
Who owns Interstate 10 over Robertson Bl National Bl?
It is owned by the State Highway Agency.