State Route 14 over LA Aqueduct
FairLos Angeles County, California · 07-LA-014-R27.55-SCTA · Structure no. 53 2146
- Built
- 1972
- 53 years old, rebuilt 1998
- Condition
- Fair
- inspected December 2024
- Type
- Box Beam or Girders - Single or Spread
- Concrete Continuous
- Length
- 359 ft
- 5 main spans
- Daily traffic
- 148,000
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 14 over LA Aqueduct is a concrete continuous box beam or girders - single or spread carrying State Route 14 over LA Aqueduct in Los Angeles County, California. It was built in 1972 and reconstructed in 1998, so it is 53 years old, younger 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 148,000 vehicles a day, roughly 4% of them trucks, projected to reach 234,766 by 2041. The structure is 359 ft (109.4 m) long and 154 ft wide. If it were closed, the detour would be 1.9 mi (3 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. |
| Channel and channel protection | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 14 over LA Aqueduct built?
It was built in 1972, making it 53 years old in 2025. It was reconstructed in 1998.
What condition is State Route 14 over LA Aqueduct 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 December 2024.
How much traffic does State Route 14 over LA Aqueduct carry?
About 148,000 vehicles per day (2021 count), of which roughly 4% are trucks.
How long is State Route 14 over LA Aqueduct?
The structure is 359 ft (109.4 m) long with a longest span of 83 ft (25.3 m) and a deck 154 ft wide.
Who owns State Route 14 over LA Aqueduct?
It is owned by the State Highway Agency.