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<br />SITE B <br /> <br />Level of Protection <br /> <br />Assumptions <br />. DGR plans are tied into same datum as FIS flood profiles <br /> <br />Existinll' Level of Protection <br />. Existing level of protection is approximately 50-yr event (taken from FIS Flood <br />profiles) <br /> <br />IOO-yr protection <br />. To attain L.O.P. for 100-yr event need a levee height of approximately 1345.5 (used <br />FIS flood profiles to detennine - does not include freeboard) <br />. May be unnecessary is Park levee is not raised to match FIS flood profiles <br />accordingly <br /> <br />SOO-yr protection <br />. Height of levee for 500-yr level of protection would need to be approximately 1350.0 <br />(used FIS flood profiles to determine - does not include freeboard) <br />. May not be feasible due to property and R.O.W. constraints <br /> <br />New Levee Construction <br />. Levee should adhere to Corps criteria <br />. 3: 1 side slopes <br />. 10' minimum top width <br />. 95% compaction (standard) <br />. Clay material <br />. Concrete toe?'!?? <br />. Levee height dictates the base width <br />. See Typical Cross section on plate 1 <br />. May be able to attain 3: 1 side slopes by building onto levee from North side. <br /> <br />SITE B - page 2 <br />