State Route 99 over Herndon Ave
GoodFresno County, California · 06-FRE-099-30.48-FRE · Structure no. 42 0127
- Built
- 1960
- 65 years old, rebuilt 2012
- Condition
- Good
- inspected November 2023
- Type
- Box Beam or Girders - Multiple
- Concrete
- Length
- 52 ft
- 1 main span
- Daily traffic
- 32,500
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 99 over Herndon Ave is a concrete box beam or girders - multiple carrying State Route 99 over Herndon Ave in Fresno County, California. It was built in 1960 and reconstructed in 2012, so it is 65 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 32,500 vehicles a day, roughly 24% of them trucks, projected to reach 61,162 by 2040. The structure is 52 ft (15.8 m) long and 127 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 99 over Herndon Ave built?
It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2012.
What condition is State Route 99 over Herndon Ave 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 November 2023.
How much traffic does State Route 99 over Herndon Ave carry?
About 32,500 vehicles per day (2019 count), of which roughly 24% are trucks.
How long is State Route 99 over Herndon Ave?
The structure is 52 ft (15.8 m) long with a longest span of 50 ft (15.2 m) and a deck 127 ft wide.
Who owns State Route 99 over Herndon Ave?
It is owned by the State Highway Agency.