SR 99 NB Off Ramp over Duck Creek
GoodSan Joaquin County, California · 10-SJ-099-16.48-STKN · Structure no. 29 0335
- Built
- 2016
- 9 years old
- Condition
- Good
- inspected June 2024
- Type
- Slab
- Concrete Continuous
- Length
- 109 ft
- 3 main spans
- Daily traffic
- 5,000
- 2016 count
- Owner
- State
- State Highway Agency
About this bridge
SR 99 NB Off Ramp over Duck Creek is a concrete continuous slab carrying SR 99 NB Off Ramp 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 5,000 vehicles a day, roughly 13% of them trucks, projected to reach 10,202 by 2042. The structure is 109 ft (33.2 m) long and 51 ft wide. If it were closed, the detour would be 1.9 mi (3 km).
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 | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR 99 NB Off Ramp over Duck Creek built?
It was built in 2016, making it 9 years old in 2025.
What condition is SR 99 NB Off Ramp 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 June 2024.
How much traffic does SR 99 NB Off Ramp over Duck Creek carry?
About 5,000 vehicles per day (2016 count), of which roughly 13% are trucks.
How long is SR 99 NB Off Ramp over Duck Creek?
The structure is 109 ft (33.2 m) long with a longest span of 42 ft (12.8 m) and a deck 51 ft wide.
Who owns SR 99 NB Off Ramp over Duck Creek?
It is owned by the State Highway Agency.