The extent to which structural methods protect an area depends on the flood for which the structure were built. Flood-management methods incorporate prevention and protection. Flood-warning systems warn people of coming floods. Controlling the type and amount of development in a floodplain through zoning allows floodwaters to spread out without destroying property. Where major development has already occurred in a floodplain, management methods are limited, and protection from flooding must rely upon structural methods.
Harvesting increases the amount of water that reaches the ground and flows into rivers and streams.
Canadian Council of Forestry Ministers. This activity will take priority given the upcoming changes to the Provincial planning system. Prioritize the completion of all 100 year floodline mapping and remapping projects for all area watercourses. Conduct an evaluation of groundwater discharge and recharge regimes in the watersheds to prioritize protection efforts in this regard for water quality and quantity management purposes. This evaluation will include investigations into the hydrogeologic and hydrologic functions of the various watersheds to assist in the development of watershed management plans.