Interstate 15 NB over Ontario Avenue
GoodRiverside County, California · 08-RIV-015-38.69-COR · Structure no. 56 0498R
- Built
- 1975
- 50 years old
- Condition
- Good
- inspected February 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 172 ft
- 1 main span
- Daily traffic
- 89,500
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 15 NB over Ontario Avenue is a prestressed concrete box beam or girders - multiple carrying Interstate 15 NB over Ontario Avenue in Riverside County, California. It was built in 1975, so it is 50 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 89,500 vehicles a day, roughly 17% of them trucks, projected to reach 113,300 by 2042. The structure is 172 ft (52.5 m) long and 92 ft wide.
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 Interstate 15 NB over Ontario Avenue built?
It was built in 1975, making it 50 years old in 2025.
What condition is Interstate 15 NB over Ontario Avenue 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 February 2024.
How much traffic does Interstate 15 NB over Ontario Avenue carry?
About 89,500 vehicles per day (2022 count), of which roughly 17% are trucks.
How long is Interstate 15 NB over Ontario Avenue?
The structure is 172 ft (52.5 m) long with a longest span of 172 ft (52.4 m) and a deck 92 ft wide.
Who owns Interstate 15 NB over Ontario Avenue?
It is owned by the State Highway Agency.