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Animas River at this location and this geometry will create the types of experiences desired <br />by the expected users of this park as defined in this report. <br />The lower Structures, Structures 10, 11, and 12, will feature a wider and flatter aspect ratio. <br />There are several reasons for the differences in aspect ratio at the two locations. The <br />primary reason is that the existing aspect ratios of the existing river are currently different at <br />the two locations. The imposition of a wider, flatter aspect ratio at Upper Smelter would <br />cause sedimentation, erosion, and would evolve the existing morphology at this site. The <br />converse is also true for the Lower Smelter Rapids Structures. These Structures would <br />create a flooding risk and erosion if a deeper aspect ratio were used. However, it is the <br />designer's opinion that the wider aspect ratio at the lower Smelter Structures will provide for <br />increased variety across the face of hydraulic and that the narrower, yet slightly deeper aspect <br />ratio of the Upper Smelter drops will provide a similar attraction through increased power <br />and surginess. Figure 13 shows the preliminary design calculations for Structure #12, the <br />widest of the proposed structures. These calculations were made under the same usage <br />assumptions used in Figure 12 for purposes of comparison. <br />30 <br />