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<br />The required elevation of the levee or fill at the Water Treatment <br />Plant Site is shown in Table 2. <br /> <br />. <br /> <br />Tab Ie 2 <br />Fill or Levee and Scour Protection Elevation <br />at Station 49+60 <br /> <br />Fill or Levee Proection <br /> <br />Water Surface Elevation <br />Freeboard <br />Fill or Levee Elevation <br /> <br />593.3 <br />6.7 feet <br />600.0 <br /> <br />Scour Protection <br /> <br />Channel Bottom Elevation <br />Depth of Scour Protection <br />Scour Protection Elevation <br /> <br />588.0 <br />5.0 feet <br />583.0 <br /> <br />Fill or levee protection should extend to the limits and top elevations <br /> <br />'. shown on Figure 3. Scour Protection should extend 5 feet below channel <br /> <br />thalweg grade or to bedrock to the same limits. <br /> <br />The Emergency Storage Pond is located in the right bank overflow area, <br /> <br />therefore velocities, depths and adverse flow conditions are less than in the <br /> <br />main channel. However, the velocities are still erosive and scour and <br /> <br />embankment protect i on a re recommended. Embankment protect i on shoul d extend <br /> <br />4.0 feet vert i ca lly above wa ter surface e 1 evat i on and 5.0 feet vert i ca lly <br /> <br />. <br /> <br />below the toe of the embankment. Approximate outlines and limits are shown <br /> <br />in Figure 3. <br /> <br /> <br />5-6 <br />