&quot;...where would you put a day&#x27;s worth of river water?&quot;<p>The other side of the river, by diverting all the water down the falls. River flows certainly vary by more than half in this part of the country&#x2F;world (I&#x27;m in Michigan but it&#x27;s not so different), so if you do it during a down time of the year you would not be creating a flow the rest of the river bed could not handle.<p>I&#x27;m not saying this is a &quot;good&quot; idea but it isn&#x27;t a bad one in the sense you&#x27;re suggesting. There is a place to put the water.