Whitney Portal RD over Los Angeles Aqueduct
GoodInyo County, California · 0.6 MI W of RTE 395 JCT · Structure no. 48C0009
- Built
- 1958
- 67 years old
- Condition
- Good
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 41 ft
- 1 main span
- Daily traffic
- 1,224
- 2019 count
- Owner
- County
- County Highway Agency
About this bridge
Whitney Portal RD over Los Angeles Aqueduct is a steel stringer/multi-beam or girder carrying Whitney Portal RD over Los Angeles Aqueduct in Inyo County, California. It was built in 1958, so it is 67 years old, older than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 1,224 vehicles a day, roughly 2% of them trucks, projected to reach 1,395 by 2040. The structure is 41 ft (12.5 m) long and 32 ft wide. If it were closed, the detour would be 123.7 mi (199 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| 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 Whitney Portal RD over Los Angeles Aqueduct built?
It was built in 1958, making it 67 years old in 2025.
What condition is Whitney Portal RD over Los Angeles Aqueduct in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.
How much traffic does Whitney Portal RD over Los Angeles Aqueduct carry?
About 1,224 vehicles per day (2019 count), of which roughly 2% are trucks.
How long is Whitney Portal RD over Los Angeles Aqueduct?
The structure is 41 ft (12.5 m) long with a longest span of 38 ft (11.6 m) and a deck 32 ft wide.
Who owns Whitney Portal RD over Los Angeles Aqueduct?
It is owned by the County Highway Agency.