State Route 99 over SR 178 (rosedale Hwy)
GoodKern County, California · 06-KER-099-25.63-BKD · Structure no. 50 0267
- Built
- 1963
- 62 years old, rebuilt 1997
- Condition
- Good
- inspected October 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 263 ft
- 4 main spans
- Daily traffic
- 132,000
- 2018 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 99 over SR 178 (rosedale Hwy) is a prestressed concrete continuous stringer/multi-beam or girder carrying State Route 99 over SR 178 (rosedale Hwy) in Kern County, California. It was built in 1963 and reconstructed in 1997, so it is 62 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 132,000 vehicles a day, roughly 21% of them trucks, projected to reach 170,762 by 2045. The structure is 263 ft (80.1 m) long and 165 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 State Route 99 over SR 178 (rosedale Hwy) built?
It was built in 1963, making it 62 years old in 2025. It was reconstructed in 1997.
What condition is State Route 99 over SR 178 (rosedale Hwy) 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 October 2023.
How much traffic does State Route 99 over SR 178 (rosedale Hwy) carry?
About 132,000 vehicles per day (2018 count), of which roughly 21% are trucks.
How long is State Route 99 over SR 178 (rosedale Hwy)?
The structure is 263 ft (80.1 m) long with a longest span of 71 ft (21.5 m) and a deck 165 ft wide.
Who owns State Route 99 over SR 178 (rosedale Hwy)?
It is owned by the State Highway Agency.