Interstate 15 over California Aqueduct
FairSan Bernardino County, California · 08-SBD-015-34.34-HES · Structure no. 54 0828
- Built
- 1968
- 57 years old
- Condition
- Fair
- inspected March 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 43 ft
- 2 main spans
- Daily traffic
- 105,000
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 15 over California Aqueduct is a concrete continuous culvert carrying Interstate 15 over California Aqueduct in San Bernardino County, California. It was built in 1968, so it is 57 years old, older 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 6 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 105,000 vehicles a day, roughly 16% of them trucks, projected to reach 120,000 by 2042. The structure is 43 ft (13.1 m) long. If it were closed, the detour would be 1.9 mi (3 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 |
|---|---|---|
| Channel and channel protection | 9 Excellent | No problems noted. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Interstate 15 over California Aqueduct built?
It was built in 1968, making it 57 years old in 2025.
What condition is Interstate 15 over California Aqueduct 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 over California Aqueduct carry?
About 105,000 vehicles per day (2020 count), of which roughly 16% are trucks.
How long is Interstate 15 over California Aqueduct?
The structure is 43 ft (13.1 m) long with a longest span of 21 ft (6.4 m).
Who owns Interstate 15 over California Aqueduct?
It is owned by the State Highway Agency.