Interstate 15 SB over Mojave River Overflow
GoodSan Bernardino County, California · 08-SBD-015-R120.05 · Structure no. 54 0642L
- Built
- 1964
- 61 years old
- Condition
- Good
- inspected October 2023
- Type
- Tee Beam
- Concrete Continuous
- Length
- 202 ft
- 4 main spans
- Daily traffic
- 22,000
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 15 SB over Mojave River Overflow is a concrete continuous tee beam carrying Interstate 15 SB over Mojave River Overflow in San Bernardino County, California. It was built in 1964, so it is 61 years old, older 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 22,000 vehicles a day, roughly 20% of them trucks, projected to reach 26,400 by 2041. The structure is 202 ft (61.6 m) long and 42 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. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Interstate 15 SB over Mojave River Overflow built?
It was built in 1964, making it 61 years old in 2025.
What condition is Interstate 15 SB over Mojave River Overflow 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 October 2023.
How much traffic does Interstate 15 SB over Mojave River Overflow carry?
About 22,000 vehicles per day (2019 count), of which roughly 20% are trucks.
How long is Interstate 15 SB over Mojave River Overflow?
The structure is 202 ft (61.6 m) long with a longest span of 50 ft (15.2 m) and a deck 42 ft wide.
Who owns Interstate 15 SB over Mojave River Overflow?
It is owned by the State Highway Agency.