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West Lake CAG NRRB Submission REVISED ADDENDUM January 4 2018

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On the other side of the railway embankment is an area that is part of the Missouri Bottoms Levee<br />

District (Agricultural Levee build for smaller than 100-year flood events) which has consistently<br />

flooded with heavy rain events. When looking at the Railway Embankment and the MO<br />

Bottom Levee area, no flood gates exist to keep flood waters out of the Earth City Levee<br />

District if water over tops the roads in the area.<br />

No inspection reports could be found for the Railway Embankment. Also note that Cowmire Creek<br />

lies just East of this Embankment on both the North and South side of the Embankment. Per a flood<br />

insurance report, “The excess amount of waterflow leaves Cowmire Creek by flowing southwest<br />

across Route 115 (St. Charles Rock Rd) and the High Stages which produce this overflow are<br />

created by the undersized culvert through the Norfolk and <strong>West</strong>ern Railroad Embankment”.<br />

http://environmentalarchives.com/doc/STL/1982-08%20-<br />

%20City%20of%20Bridgeton,%20Missouri%20-%20Flood%20Insurance%20Study.pdf<br />

We call your attention to studies done by the Army Corp of Engineers focused on downstream<br />

flooding that neglected to take into consideration localized flood impact due to heavy rains, such as<br />

the 9.18 inches which fell on the St. Louis Region Dec 26-28, 2015: 4.87 in. (Dec 26), 1.72 in (Dec<br />

Page 35

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