State Route 91 over UP RR
FairLos Angeles County, California · 07-LA-091-R13.35-LBCH · Structure no. 53 2101
- Built
- 1970
- 55 years old
- Condition
- Fair
- inspected July 2023
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 137 ft
- 3 main spans
- Daily traffic
- 270,000
- 2017 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 91 over UP RR is a concrete continuous box beam or girders - multiple carrying State Route 91 over UP RR in Los Angeles County, California. It was built in 1970, so it is 55 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 270,000 vehicles a day, roughly 12% of them trucks, projected to reach 290,604 by 2040. The structure is 137 ft (41.8 m) long and 168 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 | 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 91 over UP RR built?
It was built in 1970, making it 55 years old in 2025.
What condition is State Route 91 over UP RR 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 July 2023.
How much traffic does State Route 91 over UP RR carry?
About 270,000 vehicles per day (2017 count), of which roughly 12% are trucks.
How long is State Route 91 over UP RR?
The structure is 137 ft (41.8 m) long with a longest span of 63 ft (19.2 m) and a deck 168 ft wide.
Who owns State Route 91 over UP RR?
It is owned by the State Highway Agency.