Levees / By county / St. Mary Parish, LA
Levee systems in St. Mary Parish, LA
11 systems on the federal register here, with 252,824 people recorded behind them.
| System | Location | Accreditation | People | Length |
|---|---|---|---|---|
| West of Atchafalaya Basin | Washington, St. Landry Parish, Louisiana | Accredited | 171,303 | 163.2 miles |
| Bayou Chene Area | Amelia, St. Mary Parish, Louisiana | No Regulatory Flood Hazard Information Published by FEMA | 26,815 | 9.66 miles |
| Wax Lake East Area | Patterson, St. Mary Parish, Louisiana | Accredited | 18,358 | 27.3 miles |
| Wax Lake West Area | Franklin, St. Mary Parish, Louisiana | Accredited | 16,248 | 53.9 miles |
| Morgan City Ring Area | Morgan City, St. Mary Parish, Louisiana | Accredited | 12,158 | 10.4 miles |
| Terrebonne Basin | Berwick, St. Mary Parish, Louisiana | Non-Accredited | 5,527 | 4.37 miles |
| Wax Lake West Area - Yellow Bayou Subarea | Franklin, St. Mary Parish, Louisiana | No Regulatory Flood Hazard Information Published by FEMA | 932 | 0.02 miles |
| Wax Lake West Area - Hanson Canal Subarea | Franklin, St. Mary Parish, Louisiana | No Regulatory Flood Hazard Information Published by FEMA | 491 | 0.02 miles |
| Drainage District 6 System | Amelia, St. Mary Parish, Louisiana | Non-Accredited | 485 | 0.75 miles |
| Lake Palourde Bypass System | Amelia, St. Mary Parish, Louisiana | Non-Accredited | 437 | 2.99 miles |
| Bayou Sale Area | Franklin, St. Mary Parish, Louisiana | Accredited | 70 | 13.1 miles |
Source: USACE National Levee Database, refreshed 2026-09-10.