The Pequonnock River is a waterway in eastern Fairfield County, Connecticut, flowing through the city of Bridgeport. The river has a penchant for flooding, particularly in spring since the removal of a retention dam in Trumbull in the 1950s. There seems to be a sharp difference of opinion among historians as to just what the Indian word Pequonnock signifies. Some insist it meant cleared field or open ground; others are sure it meant broken ground; while a third group is certain it meant place of slaughter or place of destruction.