State Route 99 over Calloway Canal
GoodKern County, California · 06-KER-099-26.70 · Structure no. 50 0265
- Built
- 1963
- 62 years old, rebuilt 1996
- Condition
- Good
- inspected October 2023
- Type
- Slab
- Concrete Continuous
- Length
- 137 ft
- 5 main spans
- Daily traffic
- 100,000
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 99 over Calloway Canal is a concrete continuous slab carrying State Route 99 over Calloway Canal in Kern County, California. It was built in 1963 and reconstructed in 1996, 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 100,000 vehicles a day, roughly 28% of them trucks, projected to reach 160,692 by 2045. The structure is 137 ft (41.8 m) long and 136 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. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 99 over Calloway Canal built?
It was built in 1963, making it 62 years old in 2025. It was reconstructed in 1996.
What condition is State Route 99 over Calloway Canal 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 Calloway Canal carry?
About 100,000 vehicles per day (2009 count), of which roughly 28% are trucks.
How long is State Route 99 over Calloway Canal?
The structure is 137 ft (41.8 m) long with a longest span of 30 ft (9.1 m) and a deck 136 ft wide.
Who owns State Route 99 over Calloway Canal?
It is owned by the State Highway Agency.