Interstate 15 SB over State Route 58
FairSan Bernardino County, California · 08-SBD-015-70.10-BSW · Structure no. 54 1114L
- Built
- 1996
- 29 years old
- Condition
- Fair
- inspected June 2024
- Type
- Box Beam or Girders - Single or Spread
- Prestressed Concrete Continuous
- Length
- 226 ft
- 2 main spans
- Daily traffic
- 43,000
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 15 SB over State Route 58 is a prestressed concrete continuous box beam or girders - single or spread carrying Interstate 15 SB over State Route 58 in San Bernardino County, California. It was built in 1996, so it is 29 years old, younger 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 43,000 vehicles a day, roughly 24% of them trucks, projected to reach 50,000 by 2044. The structure is 226 ft (68.9 m) long and 59 ft wide. If it were closed, the detour would be 0.6 mi (1 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 | 7 Good | Some minor problems. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Interstate 15 SB over State Route 58 built?
It was built in 1996, making it 29 years old in 2025.
What condition is Interstate 15 SB over State Route 58 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 SB over State Route 58 carry?
About 43,000 vehicles per day (2022 count), of which roughly 24% are trucks.
How long is Interstate 15 SB over State Route 58?
The structure is 226 ft (68.9 m) long with a longest span of 115 ft (35 m) and a deck 59 ft wide.
Who owns Interstate 15 SB over State Route 58?
It is owned by the State Highway Agency.