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<br /> <br />Prospect Valley Reservoir Dam during breaching event <br />looking southwest at about 1 :00 p.m.. February 10. 1980 <br />(Hydro-Triad. Ltd.). <br /> <br /> <br />Erosional cuts between Prospect Valley Reservoir Dam and <br />Prospect Lateral. Maximum cut depth is approximately 30 feet. <br />with major benches at 10 to 15 foot levels (CWCB). <br /> <br /> <br />FIGURE 10 <br />BREACH AND <br />EROSION <br />PHOTOTGRAPHS <br /> <br />Prospect Valley Reservoir Dam looking north during failure <br />at about 1 :00 p.m.. February 10. 1980. Note reservoir ice <br />on concrete apron (Hydro-Triad. Ltd.). <br /> <br /> <br />Deposition of sediment downstream of Prospect Valley <br />Reservoir after breaching event (CWCB). <br /> <br />11 <br />