PREFACE 



Authority for the US Army Engineer Waterways Experiment Station (WES) 

 to conduct this study was contained in Intra-Army Order for Reimbursable Ser- 

 vices No. E86-84-0018, dated 8 February 1984. The study was sponsored by the 

 Alaska District Office of the Corps of Engineers, NPAEN-DL-P. 



The study was conducted by personnel of the Coastal Engineering Research 

 Center (CERC), WES, under the direction of Dr. R. W. Whalin, Chief, CERC, and 

 Dr. F. E. Camfield, Acting Chief, Engineering Development Division. The study 

 was performed under the direct supervision of Dr. Dennis R. Smith, Chief, Pro- 

 totype Measurement and Analysis Branch, and Dr. Michael E. Andrew, assisted by 

 Mr. Orson P. Smith and Ms. Jane M. McKee. 



Commanders and Directors of WES during the conduct of the study and the 

 preparation of this report were COL Tllford C. Creel, CE, and COL Robert C. 

 Lee, CE. COL Allen F. Grum, CE, was Director of WES during the publication 

 of this report. Technical Directors were Mr. Fred. R. Brown and Dr. Robert 

 W. Whalin. 



