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002770 . ProjeCt Design . . The intent of the designis to transfonn the existing unifonn chaT'..nel into. an area that"has .. a variety of structures and interest to a wide vanetyofwrutew'ater paddlersand.other boaters.. , ... The site was designed to accommodate a variety of flows and to have varying characteristics at varying flow levels. The spectrum of expected usable flow levels vari es from. .120 cfs on the minimum end to greater than 1700 cfs at the upper end. Expected flow rates are seasona}ly dependent with flows typically available at the claimed amounts. The.Tunctionalityof the course also varies at vaIying flow levels. At levels near the lower claimed amounts, the course is navigable and useful as. a training facility for entry-level boaters. As the flow increases . the features become more appropriate for top-level boaters. At the higher flow levels claimed, it is reasonable to expect that the features formed will be appropriate for competitions in freestyle. - and slalom and that this will attract out oftownboaters from the surrounding region. Large. . whitewater events can attract a number of users to the community over;mextenqed time period and can have a si gnificant. effect on the economy of the surrounding town. AUower levels fewer paddlers will visitand fewer, if any, competitive events will take place. ; This is particularly true in Steamboat Springs, which is surrounded by a number of excellent whitewaterrivers. Boaters who would otherwise paddle in Steamboat Springs will be easily lured to more powerful venues if there is insufficient water intheYampa River. The Boating Park design incorporates a variety of diversion and control structures to create features that are conducive.tp whitewater paddling. All of these features provide a better boating experience at the higher flow rates claimed and therefore draw more boaters at those rates. Obviously, very high flood flows are not considered as nonnal boatirig flows. The course was designed, however, to withstand the impact ofhight1ood flows. Structures included in the Boating Park include "U" drops. Each of theseis followed by a self-scouring pool. These . structures are designed to divert and control the flow at specific points to create surfwaves, rodeo holes, standing waves, eddies, and jets of water for squirt boating. As water flows . increase, these wave forms become larger, more powerful, and conducive to the sport of whitewater rodeo, play-boating, and slalom racing. The structures includedin the Boating Park, as shown inFigure 1, are massive structures built oflargestone, grouted together with concrete., thatspan the entire channel and are anchored well into the bed and banks of the river. They are . designed to divert and control water to create boating features, particularly at high flows. These structUres work togetherin tandem to create the desired features. It is this true variety of features that makes the course attractive and useful to such a large cross-section of potential users. . -5- .