Hell it is not riverside but all Columbia low lands. That flood that nearly maxed the reservoirs was inches from getting to the Columbia Basin metro areas in both WA and OR. As always many outside a area want change as long as someone else foots the bill and pain involved. The first step in this whole process is you have to stop killing the creature period. The marine fisheries are indiscriminate harvesters that completely obliterate any habitat restoration or other efforts to stop the decline of salmon populations. Terminal fisheries somewhat the same but the use of commercial fish wheels is logical now as you can design them to allow the passage of wild fish un harmed.

In order to get away from carbon based fuels will take a massive effort and again require nearly a doubling of electric generating capacity and transmission lines infrastructure that works. ( just the opposite of CA )

For myself it is the Dalles that needs to come down and the tribal nations get Celilo back. After the gates closed on the dam it took only 4 hours for the falls to go under water. Not much of a reservoir loss here and the falls had passage locks. https://www.critfc.org/salmon-culture/tribal-salmon-culture/celilo-falls/ This is a good read on falls. https://www.historylink.org/File/10010

Stupidity and injustice does not have boundaries anymore than greed. The Columbia projects were about creating power and water for irrigation that allowed the PNW to prosper, which we have. It did not come without cost and winners and loosers. In fact Grand Coulee Dam and its power are credited to being a key factor in the great speed that our country responded to WW II.

So don't want dams? Support a massive effort to develop alternate energy that allows us to do away with the need for hydro power. Other than that it is simply a bunch of philosophical whining.