State Route 99 over BNSF RY & AMTRAK
GoodKern County, California · 06-KER-099-24.78-BKD · Structure no. 50 0239
- Built
- 1961
- 64 years old, rebuilt 1997
- Condition
- Good
- inspected October 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 422 ft
- 5 main spans
- Daily traffic
- 132,000
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 99 over BNSF RY & AMTRAK is a prestressed concrete continuous stringer/multi-beam or girder carrying State Route 99 over BNSF RY & AMTRAK in Kern County, California. It was built in 1961 and reconstructed in 1997, so it is 64 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 422 ft (128.6 m) long and 160 ft wide. If it were closed, the detour would be 1.9 mi (3 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 State Route 99 over BNSF RY & AMTRAK built?
It was built in 1961, making it 64 years old in 2025. It was reconstructed in 1997.
What condition is State Route 99 over BNSF RY & AMTRAK 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 BNSF RY & AMTRAK carry?
About 132,000 vehicles per day (2009 count), of which roughly 21% are trucks.
How long is State Route 99 over BNSF RY & AMTRAK?
The structure is 422 ft (128.6 m) long with a longest span of 91 ft (27.6 m) and a deck 160 ft wide.
Who owns State Route 99 over BNSF RY & AMTRAK?
It is owned by the State Highway Agency.