The primary stormwater drainage watercourses in Ventura County are the Ventura River, the Santa Clara River, and Calleguas Creek, all of which traverse the southern and most populated areas of the county. Coastal watercourses drain stormwater from cities of Ventura, Oxnard, and Port Hueneme, as well as the County’s unincorporated coastal areas. Watercourses in the northern part of Ventura County travel through the largely unpopulated and mountainous areas of the Los Padres National Forest. Each of these watercourses are subject to periodic flooding.
A goal and associated policies and implementation programs addressing flood hazards are in Chapter 7, Hazards and Safety Element.