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. to each in the flood of January 1969. However, with regard to deaths, 19 lives were lost in drownings and 12 lives were lost in landslides. The bulk of the urban damage in the flood of January 1969 occurred in areas of urban sprawl. In those areas, development plans and related zoning did not prevent the occupancy of land exposed to the hazards of inundation and (or) de bris damage, and the improvement and development of drainage of flood-control facilities did not keep pace with expanded urbanization. Ideally, adequate zoning and drainage design should be incorporated in the planning stage of any new development. The narrow coastal plain in the region is now almost fully occupied and housing is moving into the upland areas in the alluvial cones and in the canyons. To a large degree the move to the uplands is for aesthetic reasons as people look .-cor homes with a view. However, it is the upland .reas that are hardest to protect because of the myriad small watercourses, each of which requires individual control measures for protection against inundation and debris damage. A high degree of protection now exists along the larger streams in the older established areas on the coastal plain. The greatest concentration of future effort will most likely be on the protection of urbanized areas in the uplands. ( . SUMMARY AND CONCLUSIONS Urban sprawl is defined here as the rapid expansion of suburban development without complete planning for the optimum control and development of water and associated land resources. By that definition any suburban area is an area of urban sprawl if its zoning ordinances do not take into consideration the hazards of inundation and debris or landslide damage, or if its drainage and flood-control facilities are not fully developed. During the calamitous floods of January 1969 in south-coastal California, flood-control measures were effective in minimizing flood damages in areas that they were designed to protect. It was in the areas of urban sprawl that the largest part of the total physical damage of $62 million occurred. The construction of additional flood-protection facilities will assure some reduction in the damage from future floods. However, the problems associated with flood flows and stonn-induced mudslides can never be completely solved; only an accomodation to those problems can be achieved. The most effective accomodation is that based on adherence to a truly comprehensive regional plan. BII R U. s. COVERN::'lENT PRIKTlNG OFFICE: 1&70 0 - 371-0&2