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<br />FLOOD-PROTECTION MEASURES <br /> <br />At the present time, there are no flood protection measures within the <br /> <br />study area. However, flow of Elk River is slightly affected by Lester Creek <br />Reservoir (known also as Pearl Lake) and Steamboat Lake. <br /> <br />ANALYTICAL METHODS <br />Hydrologic Analyses <br /> <br />2 <br /> <br /> <br />Hydrologic analyses were carried out to establish the peak-discharge- <br /> <br /> <br />frequency relation for the 100-year flood for the flooding source studied in <br /> <br /> <br />limited detail. The 100-year peak discharge was computed based on analysis of <br />peak flows at the U.S. Geological Survey streamflow-gaging station weighted <br />with equations developed by Kircher and others (1985) and prorated by drainage <br />area between the gaged and the downstream end of the study reach. The drainage <br />area at the gage is 206 square miles and 221 square miles at the downstream <br /> <br /> <br />end of the study reach. The 100-year peak discharge for the study reach is <br /> <br /> <br />4,220 cubic feet per second. This value was used throughout the study reach <br /> <br /> <br />since there was insignificant change in drainage area through the reach. <br />