99 W Frontage Road over Wine Draw Slough
GoodSan Joaquin County, California · 0.3 Miles N of Morse Road · Structure no. 29C0488
- Built
- 1964
- 61 years old
- Condition
- Good
- inspected April 2024
- Type
- Slab
- Concrete
- Length
- 26 ft
- 1 main span
- Daily traffic
- 1,000
- 2024 count
- Owner
- County
- County Highway Agency
About this bridge
99 W Frontage Road over Wine Draw Slough is a concrete slab carrying 99 W Frontage Road over Wine Draw Slough in San Joaquin County, California. It was built in 1964, so it is 61 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 1,000 vehicles a day, roughly 2% of them trucks, projected to reach 1,300 by 2044. The structure is 26 ft (7.8 m) long and 48 ft wide.
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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 99 W Frontage Road over Wine Draw Slough built?
It was built in 1964, making it 61 years old in 2025.
What condition is 99 W Frontage Road over Wine Draw Slough 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 April 2024.
How much traffic does 99 W Frontage Road over Wine Draw Slough carry?
About 1,000 vehicles per day (2024 count), of which roughly 2% are trucks.
How long is 99 W Frontage Road over Wine Draw Slough?
The structure is 26 ft (7.8 m) long with a longest span of 24 ft (7.3 m) and a deck 48 ft wide.
Who owns 99 W Frontage Road over Wine Draw Slough?
It is owned by the County Highway Agency.