Modifications of Dams for Recreational Boatingby William C. Taggart, McLaughlin Water Engineers, Denver, CO, USA,
John M. Pflaum, McLaughlin Water Engineers, Denver, CO, USA,
Jon H. Sorensen, McLaughlin Water Engineers, Denver, CO, USA,
Abstract: Many existing dams and river structures require modification, and new structures may need to include designs to allow safe white water activities. The basic problem is safety, with a long list of other concerns including expense, stability, technical difficulty, utility or hydropower relationships, aesthetics and aquatic passage. The fundamental issue with regard to safety relates to the formation of dangerous hydraulic jumps including submerged jumps, of the type with reverse (or upstream) surface current and very abrupt vertical differentials. Recreational craft, safety devices and people are likely to be trapped in certain jumps. Once involved, escape from such a man-made feature is difficult because of the uniformity (linearity) of the structure.
Subject Headings: Structural safety | Water-based recreation | Safety | Rivers and streams | Existing buildings | Hydraulic design | Dam safety | Water management
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