Interstate 15 NB over Soap Mine Road
FairSan Bernardino County, California · 08-SBD-015-76.02 · Structure no. 54 0549R
- Built
- 1961
- 64 years old
- Condition
- Fair
- inspected June 2024
- Type
- Tee Beam
- Concrete Continuous
- Length
- 161 ft
- 3 main spans
- Daily traffic
- 24,500
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 15 NB over Soap Mine Road is a concrete continuous tee beam carrying Interstate 15 NB over Soap Mine Road in San Bernardino County, California. It was built in 1961, so it is 64 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 5 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 24,500 vehicles a day, roughly 17% of them trucks, projected to reach 33,000 by 2044. The structure is 161 ft (49.1 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
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 Soap Mine Road built?
It was built in 1961, making it 64 years old in 2025.
What condition is Interstate 15 NB over Soap Mine Road 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 June 2024.
How much traffic does Interstate 15 NB over Soap Mine Road carry?
About 24,500 vehicles per day (2022 count), of which roughly 17% are trucks.
How long is Interstate 15 NB over Soap Mine Road?
The structure is 161 ft (49.1 m) long with a longest span of 64 ft (19.5 m) and a deck 42 ft wide.
Who owns Interstate 15 NB over Soap Mine Road?
It is owned by the State Highway Agency.