State Route 14 over Sierra HWY
FairLos Angeles County, California · 07-LA-014-R25.13 · Structure no. 53 1936
- Built
- 1971
- 54 years old, rebuilt 2014
- Condition
- Fair
- inspected December 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 228 ft
- 3 main spans
- Daily traffic
- 159,000
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 14 over Sierra HWY is a concrete continuous box beam or girders - multiple carrying State Route 14 over Sierra HWY in Los Angeles County, California. It was built in 1971 and reconstructed in 2014, so it is 54 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 159,000 vehicles a day, projected to reach 238,735 by 2041. The structure is 228 ft (69.5 m) long and 182 ft wide. If it were closed, the detour would be 5 mi (8 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 State Route 14 over Sierra HWY built?
It was built in 1971, making it 54 years old in 2025. It was reconstructed in 2014.
What condition is State Route 14 over Sierra HWY 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 Sierra HWY carry?
About 159,000 vehicles per day (2021 count).
How long is State Route 14 over Sierra HWY?
The structure is 228 ft (69.5 m) long with a longest span of 105 ft (31.9 m) and a deck 182 ft wide.
Who owns State Route 14 over Sierra HWY?
It is owned by the State Highway Agency.