<em>Several flood mitigation techniques can be used by federal governments.
</em>
<u>Explanation:</u>
<em>Diversion of flood water and its storage is a method that can be used for flood mitigation.</em> Floodwaters can be diverted to canals, reservoirs, floodplains etc.
Thus water can be kept out of inhabited areas. Federal governments can enact legislation to establish floodwater and storage. <em>Restoration of streams and floodplains is another method that can be used to mitigate floods. </em>
These methods can prevent bank erosion and reduce the severity of floods. Legislation's regarding the restoration can be passed by federal states.
<em>Low impact development and green infrastructure store water and thus helps preventing floods. This is another method to mitigate floods. </em>
