Louise Ave over State Route 99
FairSan Joaquin County, California · 10-SJ-099-7.93-MTCA · Structure no. 29 0135
- Built
- 1955
- 70 years old
- Condition
- Fair
- inspected October 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 228 ft
- 2 main spans
- Daily traffic
- 6,551
- 2012 count
- Owner
- State
- State Highway Agency
About this bridge
Louise Ave over State Route 99 is a concrete continuous box beam or girders - multiple carrying Louise Ave over State Route 99 in San Joaquin County, California. It was built in 1955, so it is 70 years old, older 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 6,551 vehicles a day, roughly 1% of them trucks, projected to reach 8,978 by 2046. The structure is 228 ft (69.6 m) long and 33 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 7 Good | Some minor problems. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Louise Ave over State Route 99 built?
It was built in 1955, making it 70 years old in 2025.
What condition is Louise Ave over State Route 99 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 October 2024.
How much traffic does Louise Ave over State Route 99 carry?
About 6,551 vehicles per day (2012 count), of which roughly 1% are trucks.
How long is Louise Ave over State Route 99?
The structure is 228 ft (69.6 m) long with a longest span of 74 ft (22.5 m) and a deck 33 ft wide.
Who owns Louise Ave over State Route 99?
It is owned by the State Highway Agency.