Reprint or republication of any 

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 Engineering Research Center. 



of this material 

 U.S. Army Coastal 



Limited free distribution within the United States 

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 this Center. Additional copies are available from: 



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 ATTN: Operations Division 

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The findings in this report are not to be construed 

 as an official Department of the Army position unless so 

 designated by other authorized documents. 



