WB SR 58 Off-Ramp over Kern River
GoodKern County, California · NW of Truxtun Ave · Structure no. 50C0357J
- Built
- 2020
- 5 years old
- Condition
- Good
- inspected December 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 1,066 ft
- 7 main spans
- Daily traffic
- 1,000
- 2022 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
WB SR 58 Off-Ramp over Kern River is a prestressed concrete continuous box beam or girders - multiple carrying WB SR 58 Off-Ramp over Kern River in Kern County, California. It was built in 2020, so it is 5 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 1,000 vehicles a day, roughly 5% of them trucks, projected to reach 1,800 by 2040. The structure is 1,066 ft (324.8 m) long and 39 ft wide.
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 | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was WB SR 58 Off-Ramp over Kern River built?
It was built in 2020, making it 5 years old in 2025.
What condition is WB SR 58 Off-Ramp over Kern River 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 December 2023.
How much traffic does WB SR 58 Off-Ramp over Kern River carry?
About 1,000 vehicles per day (2022 count), of which roughly 5% are trucks.
How long is WB SR 58 Off-Ramp over Kern River?
The structure is 1,066 ft (324.8 m) long with a longest span of 174 ft (53.1 m) and a deck 39 ft wide.
Who owns WB SR 58 Off-Ramp over Kern River?
It is owned by the City or Municipal Highway Agency.