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<br />~ <br /> <br />." <br /> <br />Background as an Expert Witness <br />.' As an expert witness I have previously testified 'in Colorado water courts Water Divisions <br />1,4 and S for issues related to the Golden (Division No. I Case 98CW448), Vail {Division No. S <br />Case OOCW2S9), Breckenridge (Division No. S Case OOCW281), Gunnison (Division No.4 Case <br />No. 02CW38) and Steamboat Springs ,(Division No.6 Case No. 03CW86) Water Parks. I also <br />gave testimony before the CWCB for issues related to the Pueblo and Gunnison Parks. In all <br />cases I have been qualified as an expert witness with regard to my experience as a Professional <br />Engineer, WhitewaterlBoating Park Designer, and Expert Kayaker based on the qualificati9ns <br />listed above. . <br /> <br />~oatlng Park Design <br /> <br />, Boating Park design beginS with an infonnadoJi gathering phase. In this 'phase <br />information about the site and the people who will use it are gathered. Necessary site <br />,information includes existing 8rament"width and depth of the existing ri~erbed, historical , <br />average and peak flows, and existing features in the region of interest. User infonnation includes <br />type ,and ability levels of the differ,nt expected user groups. User groups can'includc; :freestyle <br />boaters, sIalomists, recreational boaters, rafters and people in inflatables among others. Public <br />meetings are held in order to determine the design objectives of the comm\U1ity and the people <br />who will use the park. <br /> <br />The designer then uses this information to design the layout of a particuhpo course and <br />, tailor it for a particular- community. ,The layo~ i~ typically a balance betWeen, the desires of the <br />many user groups, the constraints of the riverbed in which the park is created and the budgeting <br />constraints of the project. Parks with sufficient drop and flow allow for the most dynamic <br />features and are typically the venues that attract the most userS and the most big events. <br /> <br />Once the layout of the course is established the design of the particular features are <br />tailored to the existing riverbed. 'In-stream modifications are difficult and require careful <br />planning. The stru~s placed in the stream ~ust be stabl~ yet create the desired feature <br />without decreasing the Capacity of the existing streambed or hindering the stream's naturaJ ' <br />sediment transport mechanisms. The structures are also designed to create a navigable stream at <br />water levels that vary :from typical lows to extreme floods. Within this spectrum of potential <br />water levels the structure must not create a dangerous hydraulic feature. Additionally, flow <br />control needs to be established and maintained thr~ughout the boating park in order to prevent <br />bank ero~ion or flow conditions that are hazardous to in-stream navigation. <br /> <br />-3- <br />