This proceedings, ""Hydraulic Engineering"", contains papers presented at the 1993 National Conference on Hydraulic Engineering held in San Francisco, California, July 25-30, 1993. The basic theme of these papers is the reduction of man-made and natural disasters through hydraulic engineering. It covers such topics as: disaster and hazard reduction; wetland and tidal hydraulics; mechanics of debris flows; sediment transport; bridge scour; three-dimensional flow modeling; computational hydraulics; California water issues; and probabilistic approaches to hydraulics. Engineers who are involved with these hydraulic engineering issues will find this proceedings an excellent source of information.