There are three sources of flooding in Stinson Beach: overflow of Easkoot Creek, extremely high tides, and extremely high surf. Each of these alone can cause some flooding and when combined, can cause substantial flooding, property damage and public safety problems. Prior to 1959 some maintenance dredging of the creek was done occasionally by the County DPW, State Division of Beaches and Parks, and the Corps of Engineers to address the flooding from Easkoot Creek. Recognizing this continuing need, the Marin County Flood Control and Water Conservation District created Flood Control Zone No. 5 in 1961 to address the flooding from Easkoot Creek specifically. Initially, the main focus of Zone was periodic maintenance dredging of the creek. Over time it has become evident that during medium to large storm events an active slide on Mt. Tamalpais releases enough hillside material to fill in the creek, even if it has recently been dredged. New efforts in the Zone are now focusing on developing a long-term non-dredge flood reduction alternate while continuing routine maintenance activities such as removal of debris jams at brides and vegetation maintenance along the creek corridor. The Zone includes drainage areas tributary to the Easkoot Creek as shown on the Zone map.