Watershed-Based Floodplain Management
Why is the Louisiana Watershed Initiative different?
LWI considers two traditional approaches—watershed management and floodplain management—together within broader watershed boundaries. This initiative represents a comprehensive approach to surface water management that takes into consideration both the natural functions of floodplains and land use decisions affecting our built environments.
What is a Watershed?
The U.S Geological Survey describes a watershed, often referred to as a drainage basin or catchment, as the geographic area within the boundary of a drainage divide, which drains all the streams and rainfall to a common outlet.
Watershed management typically involves water quality and pollution control, ecosystem management and river management.
What is a Floodplain?
FEMA’s National Flood Insurance Program defines a floodplain as “any land area susceptible to being inundated by floodwaters from any source.”
Floodplain management typically involves implementing building standards and regulating development in flood-prone areas.