 An online fundraiser is underway to support the family who owns the Rapidan Dam store near Mankato, as well as an adjacent house that was swept away by the Blue Earth River. The river carved a new channel around the dam after debris clogged the dam's spillways during flooding. The house fell into the river Tuesday night, and more erosion could endanger the store. Louise Henderson is a friend of the Hershka family, which owns the store. The outpour of support has been phenomenal.