a conduit through which water flows natural or artificial channel through which water flows
A waterway perennially or intermittently containing water, including a lake, river, creek, spring, ravine, swamp, salt water marsh, bog, and drainage ditch leading into any of the foregoing
A stream, canal, ditch, or an artificial channel in which water usually flows, continuously or intermittently
A depression formed by runoff moving over the surface of the earth; any natural or artificial channel through which water flows; a lake, river, creek, stream, wash, arroyo, channel or other topographic feature on or over which waters flow at least periodically Watercourses include specifically designated areas in which substantial flood damage may occur