PREFACE 



The model investigation reported herein was requested by the US Army 

 Engineer District, Los Angeles (SPL) , and conducted at the Coastal Engineering 

 Research Center (CERC) of the US Army Engineer Waterways Experiment Station 

 (WES) . Authorization for WES to perform the study was subsequently granted by 

 SPL in SPL Intra-Army Order E86890016 dated 17 November 1988. 



Model testing was conducted at WES from March to August 1989 under the 

 general direction of Dr. James R. Houston, Chief, CERC; Mr. Charles C. 

 Calhoun, Jr., Assistant Chief, CERC; Mr. C. E. Chatham, Jr., Chief, Wave Dynamics 

 Division (WDD) ; and Mr. D. D. Davidson, Chief, Wave Research Branch (WRB) . 

 Tests were conducted by Mr. Ernest R. Smith, Wave Processes Branch (WPB) ; 

 Mr. Willie G. Dubose, WRB; Mr Robert D. Carver, WRB; Ms. Brenda J. Wright, 

 WRB; Mr. Lonnie L. Friar, Instrumentation Services Division (ISD) , and 

 Mr. Richard H. Floyd, ISD. This report was prepared by Messrs. Smith, Dubose, 

 and Carver. Ms. Lee T. Byrne, Information Technology Laboratory, edited this 

 report. 



Liaison was maintained during the course of the investigation with SPL 

 by means of conferences, progress reports, and telephone conversations. 

 Points of contact with SPL were Messrs. Arthur T. Shak and Chuck Mesa. 



COL Larry B. Fulton, EN, was Commander and Director of WES during report 

 publication. Dr. Robert W. Whalin was Technical Director. 



