August 18-20, 1955: Three terrifying days and nights still remembered with awe in the Delaware River watershed. Record-breaking rainfall from back-to-back hurricanes- Connie, then Diane-abruptly ended a withering drought, but the relief was short-lived. It was soon overshadowed by terror and destruction that tore away bridges and ripped houses from their foundations. From the river's headwaters in the Catskills and through the Poconos, excessive runoff surged down steep slopes and through valleys on both sides of the river. Tributaries swelled unbelievably, some rising thirty feet in fifteen...