LA Sierra Avenue over Route 91
GoodRiverside County, California · 08-RIV-091-11.99-RIV · Structure no. 56 0829
- Built
- 2009
- 16 years old
- Condition
- Good
- inspected April 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 181 ft
- 2 main spans
- Daily traffic
- 14,500
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
LA Sierra Avenue over Route 91 is a prestressed concrete continuous box beam or girders - multiple carrying LA Sierra Avenue over Route 91 in Riverside County, California. It was built in 2009, so it is 16 years old, younger 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 14,500 vehicles a day, roughly 5% of them trucks, projected to reach 18,200 by 2040. The structure is 181 ft (55.3 m) long and 129 ft wide. If it were closed, the detour would be 1.2 mi (2 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was LA Sierra Avenue over Route 91 built?
It was built in 2009, making it 16 years old in 2025.
What condition is LA Sierra Avenue over Route 91 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 April 2023.
How much traffic does LA Sierra Avenue over Route 91 carry?
About 14,500 vehicles per day (2020 count), of which roughly 5% are trucks.
How long is LA Sierra Avenue over Route 91?
The structure is 181 ft (55.3 m) long with a longest span of 91 ft (27.8 m) and a deck 129 ft wide.
Who owns LA Sierra Avenue over Route 91?
It is owned by the State Highway Agency.