National Blvd over Route 10
FairLos Angeles County, California · 07-LA-010-R6.31-LA · Structure no. 53 1615
- Built
- 1963
- 62 years old
- Condition
- Fair
- inspected February 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 410 ft
- 2 main spans
- Daily traffic
- 29,945
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
National Blvd over Route 10 is a prestressed concrete continuous box beam or girders - multiple carrying National Blvd over Route 10 in Los Angeles County, California. It was built in 1963, so it is 62 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 29,945 vehicles a day, roughly 5% of them trucks, projected to reach 41,351 by 2042. The structure is 410 ft (125 m) long and 80 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was National Blvd over Route 10 built?
It was built in 1963, making it 62 years old in 2025.
What condition is National Blvd over Route 10 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 2024.
How much traffic does National Blvd over Route 10 carry?
About 29,945 vehicles per day (2022 count), of which roughly 5% are trucks.
How long is National Blvd over Route 10?
The structure is 410 ft (125 m) long with a longest span of 150 ft (45.7 m) and a deck 80 ft wide.
Who owns National Blvd over Route 10?
It is owned by the State Highway Agency.