At least six former Shopko locations across Iowa in the near future will reopen as Hy-Vee Dollar Fresh stores.Hy-Vee on Monday announced purchase agreements for Shopko buildings in Cresco, Dyersville, Hampton, Oelwein, Vinton and Waukon. Over the coming weeks, workers will start work renovating several of those locations, aiming to reopen them by late summer.