Delta Rivers and Flooding, Part 4 of 4

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Part 4, Planning for the Future and Learning from the Past

For ease of navigation, here are the links to all 4 parts of the series:

Part 1:  Water Sources and How They Affect the Delta

Part 2:  Historic Breaks, Floods and What Caused Them

Part 3: The Sacramento-San Joaquin Delta as a Unique Place

Part 4: Planning for the Future and Learning from the Past


  • California Department of Transportation, District-10
  • California Department of Water Resources, Flood Operations Center
  • California Governor’s Office of Emergency Services
  • Kjeldsen, Sinnock & Neudeck, inc. (KSN) Civil Engineers & Land Surveyors
  • Reclamation District 563 (Tyler Island)
  • Reclamation District 1601 (Twitchell Island)
  • U.S. Coast Guard, Station Rio Vista
  • U.S. National Weather Service, Forecast Office Sacramento
  • San Joaquin County, Office of Emergency Services
  • Yolo County, Office of Emergency Services









Meet the Authors

Michael Cockrell’s public service career has included law enforcement, water conservation enforcement, and emergency management. After 35-years at San Joaquin County’s Office of Emergency Services (OES), he retired as Director in December 2017. His OES experience between 1982-2017 included a wide range of emergencies and disasters such as floods, earthquake recovery, mass-casualty incidents, train derailments, hazardous materials releases, droughts, extreme heat and cold events. His education includes Associate and Bachelor degrees in Social Science, concentrating in Administration of Justice, and, a Master’s Degree in Public Administration. He has also completed many continued-education courses on administration and emergency management. 

Guy Mallery was born in Maryland, just off the Chesapeake Bay. He studied at Stony Brook University in New York, and moved to California in 1995. Formerly with San Joaquin County Office of Emergency Services (OES), Mr. Mallery’s Emergency Management experience ranges from Planning to Local Hazard Mitigation and Continuity of Operations (COOP). He is a past Flotilla Commander of the Coast Guard Auxiliary’s Stockton unit, and currently serves in a leadership role as Vice Commander. He has also been a leader with Amateur Radio volunteers serving public agencies sine 1978. Mr. Mallery has been the Emergency Coordinator for ARES in San Joaquin County for many years, helping agencies such as the Red Cross, and the National Weather Service SkyWarn program in times of need. 

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