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Willow Creek Reclamation Committee <br />Windy Gulch Project Final Report <br />ANALYSIS OF TOPOGRAPHY <br />The low levee section was surveyed to verify that sufficient material was placed to raise <br />elevations at least three feet above the 100-year water surface elevations indicated by the Hec- <br />Ras model Following is a plot comparing the new levee topography with estimated water <br />surface elevations. The location of the new box culvert and channel cross section are also <br />indicated. The surveying confirmed that the entire length of the levee now has greater than a a- <br />foot freeboard above water surface elevations estimated fora 100-year flood. <br />8885 <br />8884 <br />8883 <br />~ 8882 <br />c <br />0 <br />a~ <br />w 8881 <br />8880 <br />8879 <br />8878 <br /> <br />New Topography <br /> <br />Levee New <br />ulve <br />Old Topography <br />Channel <br />Profile 10ft <br />DS of Culvert <br />100-Year Water Surface <br />Elevations from Model <br />XS4.7 <br />XS4 XS4.3 <br />0 20 40 60 80 100 120 <br />