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<br />. <br /> <br />could be used to provide an estimate of hydraulic conductivity, porosity, and grain size. The <br /> <br /> <br />soil at higher elevations on Aspen Mountain have not been classified, <br /> <br />2. The soil could be analyzed at several key locations (i.e, the bottom of the gulches) to obtain <br /> <br /> <br />more accurate values of the soil properties on th~ lower elevations of Aspen Mountain, They <br /> <br /> <br />could also be taken at the higher elevations where no soil information is available, <br /> <br />3, Use a modeling option in FLO-2D called rills and gullies, Due to the grid spacing, FLO-2D <br /> <br /> <br />may not recognize small channels and swales that could carry significanl quantities of water, <br /> <br /> <br />especially on alluvial fans, The rills and gullies option in FLO-2D accounts for the flow in <br /> <br /> <br />these small channels, It should provide a more accurate estimate of the direction, outlet <br /> <br /> <br />location, and magnitude of the flow from Aspen Mountain. <br /> <br />4, Use the different options available inFLO-2Dto more accurately model the flow through the <br /> <br /> <br />City, In the FLO-2D models developed and presented in this study, the effectofbuildings and <br /> <br /> <br />streets in the City were ignored and the runoff was allowed to flow as if there were no <br /> <br /> <br />buildings present, Refining the model to account for buildings and streets should have a <br /> <br /> <br />significant effect on the water surface elevation and flow direction through the City. <br /> <br />5, The Probability of multiple probability events could be analyzed. For instance, the actual <br /> <br /> <br />probability of a IO-year storm occurring on snow could be estimated, <br /> <br />6, The uncertainty of runoff from an alluvial fan should be addressed, In many instances, during <br /> <br /> <br />heavy rains the channels and swales will erode their banks and shift directions, Flow that has <br /> <br /> <br />normally outfalled at one location may shift and outfall ata new location. Alternative design <br /> <br /> <br />and analysis should account for the uncertainty of runoff paths from alluvial fans. <br /> <br />Other areas of refmement and modification may present themselves after this study has undergone <br /> <br /> <br />a peer review and during the course of the next phase of the study, <br /> <br />25 <br /> <br />;j <br />i <br />