PREFACE 
This report is published to provide coastal engineers with a mathematical 
modeling procedure for predicting shoreline evolution resulting from the con- 
struction of navigation and shore structures. The model is calibrated with a 
test case at Holland Harbor, Michigan. This report is a continuation of an 
investigation by Le Mehaute and Soldate (1977) to determine the feasibility 
of applying numerical models to real case situations. The work was carried 
out under the coastal structures program of the Coastal Engineering Research 
Center (CERC). 
The report was prepared by Bernard Le Mehaute and Mills Soldate, Tetra 
Tech, Inc., Pasadena, California, under CERC Contract No. DACW72-7T-C-0002. 
The authors acknowledge the assistance of Dr. J.R. Weggel, CERC, and 
C. Johnson, U.S. Army Engineer District, Chicago, for their pertinent comments 
during this investigation. Informal discussions with Dr. R. Dean, University 
of Delaware, were very constructive. The contributions of Dr. I. Collins, 
Dr. C. Sonu, and J. Nelson are also acknowledged, as well as A. Ashley's 
analysis of the input data. 
Dr. J.R. Weggel was the CERC contract monitor for the report, under the 
general supervision of N.E. Parker, Chief, Engineering Development Division. 
Comments on this publication are invited. 
Approved for publication in accordance with Public Law 166, 79th Congress, 
approved 31 July 1945, as supplemented by Public Law 172, 88th Congress, 
approved 7 November 1963. 
Colonel, Corps of Engineers 
Commander and Director 
