99 W Frontage Road over Duck Creek
GoodSan Joaquin County, California · 0.5 MI S of Mariposa Road · Structure no. 29C0489
- Built
- 2016
- 9 years old
- Condition
- Good
- inspected April 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 42 ft
- 3 main spans
- Daily traffic
- 30,000
- 2024 count
- Owner
- County
- County Highway Agency
About this bridge
99 W Frontage Road over Duck Creek is a concrete continuous culvert carrying 99 W Frontage Road over Duck Creek in San Joaquin County, California. It was built in 2016, so it is 9 years old, younger 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 30,000 vehicles a day, roughly 10% of them trucks, projected to reach 45,000 by 2044. The structure is 42 ft (12.8 m) long and 60 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 |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 99 W Frontage Road over Duck Creek built?
It was built in 2016, making it 9 years old in 2025.
What condition is 99 W Frontage Road over Duck Creek 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 Duck Creek carry?
About 30,000 vehicles per day (2024 count), of which roughly 10% are trucks.
How long is 99 W Frontage Road over Duck Creek?
The structure is 42 ft (12.8 m) long with a longest span of 14 ft (4.4 m) and a deck 60 ft wide.
Who owns 99 W Frontage Road over Duck Creek?
It is owned by the County Highway Agency.