High water mark collection for Hurricane Katrina in Mississippi

The purpose of this study was to document maximum flooding elevations that occurred as a result of Hurricane Katrina in Mississippi by collecting high water marks in affected areas. HWM data collection helps accurately document a flooding event and assists in response, recovery, and mitigation, for future disasters.
These HWM data help place the event within a historical context, improve estimates of current flood risk, and enable governments to make cost-effective decisions about mitigation efforts.