State Route 99 over San Joaquin River
FairMadera County, California · 06-MAD-099-0.08 · Structure no. 41 0090
- Built
- 2015
- 10 years old
- Condition
- Fair
- inspected June 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 877 ft
- 6 main spans
- Daily traffic
- 64,000
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 99 over San Joaquin River is a prestressed concrete continuous box beam or girders - multiple carrying State Route 99 over San Joaquin River in Madera County, California. It was built in 2015, so it is 10 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 64,000 vehicles a day, roughly 22% of them trucks, projected to reach 127,732 by 2043. The structure is 877 ft (267.3 m) long and 141 ft wide. If it were closed, the detour would be 23 mi (37 km).
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 | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 99 over San Joaquin River built?
It was built in 2015, making it 10 years old in 2025.
What condition is State Route 99 over San Joaquin 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 San Joaquin River carry?
About 64,000 vehicles per day (2009 count), of which roughly 22% are trucks.
How long is State Route 99 over San Joaquin River?
The structure is 877 ft (267.3 m) long with a longest span of 159 ft (48.5 m) and a deck 141 ft wide.
Who owns State Route 99 over San Joaquin River?
It is owned by the State Highway Agency.