Absolutely correct, but OP only talked about issues related to agriculture. EDIT:. Maybe not as bad as some might think. The 4 lower Snake River damns provide

Absolutely correct, but OP only talked about issues related to agriculture. EDIT:. Maybe not as bad as some might think. The 4 lower Snake River damns provide only 4% apparently of the regions power. https://www.spokesman.com/stories/2018/apr/08/replacing-power-produced-by-four-snake-river-dams-/ https://www.spokesman.com/stories/2018/apr/08/replacing-powe... So while yes the hydropower would need to be replaced it may not be a huge cost to do it.