Glen Canyon Dam (courtesy of Murali-Raju/Unspash)The Glen Canyon Dam controls the flow of water to the lower Colorado River. Erik Balken, Executive Director of the Glen Canyon Institute (courtesy of the Glen Canyon Institute)“I think a lot of people, especially in Utah, don’t really realize that Glen Canyon Dam and Lake Powell were not built for recreation,” says Eric Balken, the Executive Director of the Glen Canyon Institute. Glen Canyon dam penstocks (courtesy of NPS.gov)A big dam mistake? The proposal advocates for studying what a full bypass of Glen Canyon Dam would look like. It’s shown us a glimpse of the potential for restoration in Glen Canyon.”What is ‘Cavitation?’The Glen Canyon Dam has had trouble with cavitation in the past.