Reprint or republication of any of this material 
shall give appropriate credit to the U.S. Army Coastal 
Engineering Research Center. 
Limited free distribution within the United States 
of single copies of this publication has been made by 
this Center. Additional copies are available from: 
Nattonal Technical Information Service 
ATTN: Operattons Divitston 
5285 Port Royal Road 
Springfteld, Virginia 22161 
report are not to be used for 
Contents of this 
promotional purposes. 
advertising, publication, or 
Citation of trade names does not constitute an official 
endorsement or approval of the use of such commercial 
products. 
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. 
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