Interstate 15 SB over Interstate 10
GoodSan Bernardino County, California · 08-SBD-015-2.37-ONT · Structure no. 54 0909L
- Built
- 1975
- 50 years old
- Condition
- Good
- inspected February 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 234 ft
- 2 main spans
- Daily traffic
- 105,500
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 15 SB over Interstate 10 is a prestressed concrete continuous box beam or girders - multiple carrying Interstate 15 SB over Interstate 10 in San Bernardino 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 105,500 vehicles a day, roughly 10% of them trucks, projected to reach 133,064 by 2042. The structure is 234 ft (71.3 m) long and 68 ft wide. If it were closed, the detour would be 1.9 mi (3 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 SB over Interstate 10 built?
It was built in 1975, making it 50 years old in 2025.
What condition is Interstate 15 SB over Interstate 10 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 SB over Interstate 10 carry?
About 105,500 vehicles per day (2022 count), of which roughly 10% are trucks.
How long is Interstate 15 SB over Interstate 10?
The structure is 234 ft (71.3 m) long with a longest span of 116 ft (35.4 m) and a deck 68 ft wide.
Who owns Interstate 15 SB over Interstate 10?
It is owned by the State Highway Agency.