Interstate 15 NB over Foothill Blvd
GoodSan Bernardino County, California · 08-SBD-015-5.28-RCUC · Structure no. 54 0922R
- Built
- 1975
- 50 years old, rebuilt 1997
- Condition
- Good
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 223 ft
- 2 main spans
- Daily traffic
- 101,500
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 15 NB over Foothill Blvd is a prestressed concrete continuous stringer/multi-beam or girder carrying Interstate 15 NB over Foothill Blvd in San Bernardino County, California. It was built in 1975 and reconstructed in 1997, 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 101,500 vehicles a day, roughly 8% of them trucks, projected to reach 120,000 by 2040. The structure is 223 ft (68 m) long and 87 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 Interstate 15 NB over Foothill Blvd built?
It was built in 1975, making it 50 years old in 2025. It was reconstructed in 1997.
What condition is Interstate 15 NB over Foothill Blvd 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 March 2023.
How much traffic does Interstate 15 NB over Foothill Blvd carry?
About 101,500 vehicles per day (2019 count), of which roughly 8% are trucks.
How long is Interstate 15 NB over Foothill Blvd?
The structure is 223 ft (68 m) long with a longest span of 115 ft (35 m) and a deck 87 ft wide.
Who owns Interstate 15 NB over Foothill Blvd?
It is owned by the State Highway Agency.