Reprint or republication of any of this material shall give appropriate 

 credit to the U.S. Army Coastal Engineering Research Center. 



U.S. Army Coastal Engineering Research Center 



Kingman Building 



Fort Belvoir, Virginia 22060 



Contents of this report are not to be used for advertising, 

 publication, or promotional purposes. Citation of trade names does not 

 constitute an official endorsement or approval of the use of such 

 commercial products. 



