Literature Review and General Concepts.- Methodology and Tools of Analysis.- Physical and Anthropogenic Factors.- Floods and Torrents of Jeddah.- Hydrologic Analysis of DEMs.- Data Analysis and Manipulation.- Data Modeling for Floods and Torrents Assessment.- Localities Damaged from Floods and Torrents.- The Existing Technical Flood Control in Jeddah.- Required Controls for Floods and Torrents in Jeddah Region.- Discussion and Conclusion.- Index.