 The Rapidan Dam Store is still standing, just feet from a cliff that was formed after the Blue Earth River carved a pathway around the dam. The family that owns the store lost their home earlier this week when it crashed down with eroding soil. The Hershkas have operated the dam store for five decades. David Hershka says he had accepted the house's destruction after the basement fell out, but he's more concerned about the store. You can replace houses, but our business is an old,