Mandeville is a St. Tammany Parish lakefront community on the north shore of Lake Pontchartrain with significant hurricane storm surge exposure. The city was severely impacted by Hurricane Katrina's north shore surge in 2005. Mandeville is connected to New Orleans via the Lake Pontchartrain Causeway — the world's longest continuous over-water bridge — which becomes impassable and then inaccessible during major storm events, isolating the north shore communities.
// 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 | 8 / 10 High |
| Primary Hazard | Hurricane / Storm Surge |
| FEMA Flood Zone | Zone AE (High Risk) |
| County FEMA Declarations | 58 |
| Last Major Event | Hurricane Ida (2021) |
// Emergency Information
| Emergency Phone | 985-626-3144 |
| Evacuation Routes | I-12 West, I-59 North, US-190 West, US-11 North |
| Elevation | 10 ft above sea level |
// County Risk Profile
St. Tammany Parish LA
Louisiana · Hurricane / Flooding
View full county emergency preparedness profile →
8/10
High Risk