LA Mesa/Nisqualli over Interstate 15
GoodSan Bernardino County, California · 08-SBD-015-38.82-VCTV · Structure no. 54 1284
- Built
- 2013
- 12 years old
- Condition
- Good
- inspected March 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 300 ft
- 2 main spans
- Daily traffic
- 5,000
- 2013 count
- Owner
- State
- State Highway Agency
About this bridge
LA Mesa/Nisqualli over Interstate 15 is a prestressed concrete continuous box beam or girders - multiple carrying LA Mesa/Nisqualli over Interstate 15 in San Bernardino County, California. It was built in 2013, so it is 12 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 5,000 vehicles a day, roughly 5% of them trucks, projected to reach 10,000 by 2044. The structure is 300 ft (91.5 m) long and 133 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 LA Mesa/Nisqualli over Interstate 15 built?
It was built in 2013, making it 12 years old in 2025.
What condition is LA Mesa/Nisqualli over Interstate 15 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 2024.
How much traffic does LA Mesa/Nisqualli over Interstate 15 carry?
About 5,000 vehicles per day (2013 count), of which roughly 5% are trucks.
How long is LA Mesa/Nisqualli over Interstate 15?
The structure is 300 ft (91.5 m) long with a longest span of 173 ft (52.8 m) and a deck 133 ft wide.
Who owns LA Mesa/Nisqualli over Interstate 15?
It is owned by the State Highway Agency.