Preface 



The model investigation described herein was requested by the US Army 

 Engineer District, Chicago (NCC), in a letter to the US Army Engineer 

 Waterways Experiment Station (WES) dated 5 June 1990. Funding 

 authorization was granted by NCC in Intra- Army Order No. NCC-IA-90- 

 27EJ, dated 5 June 1990. Model tests were conducted during the period 

 January-December 1992. 



The study was conducted by personnel of the WES Coastal Engineering 

 Research Center (CERC) under the general direction of Dr. James R. 

 Houston, Director, CERC, and Mr. Charles C. Calhoun, Jr., Assistant 

 Director, CERC. Direct guidance was provided by Messrs. C. E. Chatham, 

 Chief, Wave Dynamics Division (WDD), and D. Donald Davidson, Chief, 

 Wave Research Branch (CW-R). Tests were conducted by Mr. W. G. 

 Dubose and Ms. B. J. Wright, WRB, WDD, under the direction of Mr. R. D. 

 Carver, Principal Investigator, WRB, WDD. This report was prepared by 

 Messrs. Carver and Dubose and Ms. Wright. 



Ms. Heidi Pfeiffer coordinated testing efforts for NCC. During the course 

 of this study, communication was maintained by monthly progress reports, 

 conferences, telephone calls, and FAXES. 



At the time of publication of this report, Director of WES was 

 Dr. Robert W. Whalin. Commander was COL Bruce K. Howard, EN. 



