Interstate 15 SB over State Route 91
FairRiverside County, California · 08-RIV-015-41.48-COR · Structure no. 56 0501L
- Built
- 1989
- 36 years old
- Condition
- Fair
- inspected March 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 212 ft
- 2 main spans
- Daily traffic
- 76,500
- 2015 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 15 SB over State Route 91 is a prestressed concrete continuous box beam or girders - multiple carrying Interstate 15 SB over State Route 91 in Riverside County, California. It was built in 1989, so it is 36 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 76,500 vehicles a day, roughly 3% of them trucks, projected to reach 111,380 by 2042. The structure is 212 ft (64.5 m) long and 94 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Interstate 15 SB over State Route 91 built?
It was built in 1989, making it 36 years old in 2025.
What condition is Interstate 15 SB over State Route 91 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 March 2024.
How much traffic does Interstate 15 SB over State Route 91 carry?
About 76,500 vehicles per day (2015 count), of which roughly 3% are trucks.
How long is Interstate 15 SB over State Route 91?
The structure is 212 ft (64.5 m) long with a longest span of 115 ft (35.1 m) and a deck 94 ft wide.
Who owns Interstate 15 SB over State Route 91?
It is owned by the State Highway Agency.