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<br />000584 <br /> <br />Summary Of Hydrologic ReQuirements <br /> <br />The following requirements are typicQlly Qccepted hydrologic requirements used in <br />eVQluQtion Qnd design of whitewQter courses thQt are used for competition: <br /> <br />. Course must contQin sufficient flow to be navigQble for its entire length. <br />. The course must consist of naturQI Qnd/or artificiQI obstQcles to create <br />whitewQter feQtures for the minimum flow rate intended for the RICD reach. <br />. The site must be able to support Q competition "without annoyance or <br />inconvenience to the competitors.- <br /> <br />ArtificiQI"pumped- courses tQke their cue from the grQvity flow courses, tuning their <br />flow and drop to provide Q reasonable recreation experience with strong considerQtion <br />for pumping costs. ArtificiQI courses Qre therefore the most Qccurate measure of Q <br />reasonable experience, because the boating public must pay to participate. Presumably, <br />if the recreQtion experience Qt Qn QrtificiQI"poy for- course WQS unacceptQble, then <br />QttendQnce would decrease to non-profitable levels. The following table provides <br />eXQmples of existing QrtificiQI "pumped- courses with their design flow rQtes. <br /> <br />Flow Rates for Artificial "Pumped- Circulation Courses <br />Low flow (ets) HiQh flow (cf,!l <br />200 600 <br /> <br />210 500 <br /> <br />250 470 <br /> <br />Dickerson, MD <br />La Seu d'Urgell, SpQin* <br />Penrith Lakes, AustrQIiQ <br /> <br />Flow Rates for Other Courses Worldwide <br />Low flow (ct~) HicJh flow (~s) <br />Unknown 500 <br />50 500 <br />300 800 <br /> <br />350 490 <br />180 1000 <br /> <br />East Race, South Bend, USA <br />Confluence Park, USA <br />Mississippi WhitewQter Park <br />Augsburg,Germany <br />Holme Pierrpont, UK <br /> <br />* Note: This course hosted the 1992 Summer Olympics, the 1993,1994,1996, and 1998 World <br />Cup Slalom Events, the 1999 Wodd Slalom Championships, and numerous local and regional <br />boating events. <br /> <br />10 <br />