Marysville California sits at the confluence of the Feather and Yuba rivers — one of the most flood-prone locations in California. The city is protected by levees but sits downstream from both Oroville Dam and multiple Sierra Nevada mountain watersheds that can produce extreme flood flows during atmospheric river events. Yuba County sits adjacent to Beale Air Force Base — home of the U-2 spy plane and RQ-4 Global Hawk drone programs — making it a location of significant military intelligence infrastructure. Atmospheric river flooding events have grown more extreme with climate change.
// Preparedness Recommendations
- Evacuation routes inland should be identified in advance.
- Store at least 72 hours of food and water.
- Elevate critical belongings above flood level.
- Have backup power ready in case of grid failure.
// Recommended Supplies
Essential gear for power outages, severe weather, and emergency situations in your area.
- Emergency Food Supplies
- Water Filtration & Storage
- Backup Generator
- Solar Backup Power
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// Risk Intelligence
| Threat Score | 6 / 10 Moderate |
| Primary Hazard | Flooding / Military / Agricultural |
| FEMA Flood Zone | Moderate |
| County FEMA Declarations | 7 |
| Last Major Event | 2023 Atmospheric River Flooding |
// Emergency Information
| Emergency Phone | 530-749-3900 |
| Evacuation Routes | State and US highways |
| Elevation | 64 ft above sea level |
// County Risk Profile
// Nearby Infrastructure Risks
Critical infrastructure facilities within or near this area that could affect civilian safety during emergencies, conflict, or infrastructure failures.
Infrastructure risk data is for emergency preparedness awareness. Facility locations are publicly known. Always follow official emergency guidance.