Borax Road over State Route 58
GoodKern County, California · 09-KER-058-R139.80 · Structure no. 50 0352
- Built
- 1971
- 54 years old
- Condition
- Good
- inspected June 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 256 ft
- 2 main spans
- Daily traffic
- 1,500
- 2018 count
- Owner
- State
- State Highway Agency
About this bridge
Borax Road over State Route 58 is a prestressed concrete continuous box beam or girders - multiple carrying Borax Road over State Route 58 in Kern County, California. It was built in 1971, so it is 54 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 1,500 vehicles a day, roughly 10% of them trucks, projected to reach 3,041 by 2040. The structure is 256 ft (78 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Borax Road over State Route 58 built?
It was built in 1971, making it 54 years old in 2025.
What condition is Borax Road over State Route 58 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 Borax Road over State Route 58 carry?
About 1,500 vehicles per day (2018 count), of which roughly 10% are trucks.
How long is Borax Road over State Route 58?
The structure is 256 ft (78 m) long with a longest span of 127 ft (38.7 m) and a deck 42 ft wide.
Who owns Borax Road over State Route 58?
It is owned by the State Highway Agency.