Trona RD over Borosolvay Channel
GoodSan Bernardino County, California · 4.7 MI N/O End of SR 178 · Structure no. 54C0548
- Built
- 1976
- 49 years old
- Condition
- Good
- inspected June 2023
- Type
- Culvert
- Concrete
- Length
- 22 ft
- 2 main spans
- Daily traffic
- 3,278
- 2016 count
- Owner
- County
- County Highway Agency
About this bridge
Trona RD over Borosolvay Channel is a concrete culvert carrying Trona RD over Borosolvay Channel in San Bernardino County, California. It was built in 1976, so it is 49 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 3,278 vehicles a day, roughly 5% of them trucks, projected to reach 3,948 by 2040. The structure is 22 ft (6.7 m) long and 50 ft wide. If it were closed, the detour would be 123.7 mi (199 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 |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Trona RD over Borosolvay Channel built?
It was built in 1976, making it 49 years old in 2025.
What condition is Trona RD over Borosolvay Channel 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 June 2023.
How much traffic does Trona RD over Borosolvay Channel carry?
About 3,278 vehicles per day (2016 count), of which roughly 5% are trucks.
How long is Trona RD over Borosolvay Channel?
The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m) and a deck 50 ft wide.
Who owns Trona RD over Borosolvay Channel?
It is owned by the County Highway Agency.