PREFACE 



The purpose of this report is to provide coastal engineers and researchers 

 with a numerical model which predicts sediment transport and the resulting 

 bathymetry in the vicinity of coastal structures. The work was carried out 

 under the U.S. Army Coastal Engineering Research Center's (CERC) Numerical 

 Modeling of Shoreline Response to Coastal Structures work unit. Shore Protec- 

 tion and Restoration Program, Coastal Engineering Area of Civil Works Research 

 and Development. 



This report was written by Marc Perl in and Robert G. Dean, Coastal and 

 Offshore Engineering and Research, Inc., under Contract No. DACW72-80-C-0030. 

 The CERC contract monitor was Dr. F. Camfield, Chief, Coastal Design Branch, 

 under the general supervision of Mr. N. Parker, Chief, Engineering Development 

 Division. 



Technical Director of CERC was Dr. Robert W. Whalin, P.E. 



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. 



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TED E. BISHOP 



Colonel, Corps of Engineers 



Commander and Director 



