1. Coastal and River Flooding in Louisiana

2. What issues with flooding have you/your tribe experienced?

3. Double in LA River Coastal

4. River Flooding Caused by: Upstream rains/seasonal melting (spring)
Worsened by management issues

5. Prompted massive overhaul of river infrastructure
Historical Floods
1927
100 year flood
Prompted massive overhaul of river infrastructure
Courtesy of Betty Jo Harris

6. Caused by heavy upstream rainfall
Recent Floods
USGS
USGS
2011 & 2015/16
Caused by heavy upstream rainfall

7. Coastal Flooding Caused by: Barrier island loss Extreme weather events
Management issues

8. Hurricanes & Tropical Storms

9. Examples Katrina 2005 Isaac 2012

10. River Control Structures
USGS
USGS

11. Coastal Walls New Orleans surge barrier Coastal levee plan
Photo by Nick Silbert, courtesy of the Army Corps of Engineers.

12. Housing
USGS