State Route 99 over Chowchilla River
FairMadera County, California · 06-MAD-099-29.33 · Structure no. 41 0001
- Built
- 1995
- 30 years old
- Condition
- Fair
- inspected June 2023
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 112 ft
- 2 main spans
- Daily traffic
- 37,500
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 99 over Chowchilla River is a concrete continuous box beam or girders - multiple carrying State Route 99 over Chowchilla River in Madera County, California. It was built in 1995, so it is 30 years old, younger than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 37,500 vehicles a day, roughly 27% of them trucks, projected to reach 68,155 by 2043. The structure is 112 ft (34.1 m) long and 101 ft wide.
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 99 over Chowchilla River built?
It was built in 1995, making it 30 years old in 2025.
What condition is State Route 99 over Chowchilla River in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2023.
How much traffic does State Route 99 over Chowchilla River carry?
About 37,500 vehicles per day (2009 count), of which roughly 27% are trucks.
How long is State Route 99 over Chowchilla River?
The structure is 112 ft (34.1 m) long with a longest span of 55 ft (16.8 m) and a deck 101 ft wide.
Who owns State Route 99 over Chowchilla River?
It is owned by the State Highway Agency.