Mill Street over State Route 58
GoodKern County, California · 09-KER-058-R91.67-THPI · Structure no. 50 0355
- Built
- 1970
- 55 years old
- Condition
- Good
- inspected May 2023
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 180 ft
- 2 main spans
- Daily traffic
- 2,068
- 2016 count
- Owner
- State
- State Highway Agency
About this bridge
Mill Street over State Route 58 is a concrete continuous box beam or girders - multiple carrying Mill Street over State Route 58 in Kern County, California. It was built in 1970, so it is 55 years old, older 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 2,068 vehicles a day, roughly 5% of them trucks, projected to reach 3,050 by 2040. The structure is 180 ft (54.9 m) long and 42 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mill Street over State Route 58 built?
It was built in 1970, making it 55 years old in 2025.
What condition is Mill Street 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 May 2023.
How much traffic does Mill Street over State Route 58 carry?
About 2,068 vehicles per day (2016 count), of which roughly 5% are trucks.
How long is Mill Street over State Route 58?
The structure is 180 ft (54.9 m) long with a longest span of 89 ft (27.1 m) and a deck 42 ft wide.
Who owns Mill Street over State Route 58?
It is owned by the State Highway Agency.