PREFACE 



This report describes a method for estimating wind-wave growth and 

 decay over flooded areas where there is a major friction effect because 

 of dense vegetation. The report was initiated in response to a request 

 from the U.S. Army Engineer Division, Lower Mississippi Valley, New 

 Orleans District at the Division's 14 September 1976 Research and Devel- 

 opment Workshop, indicating a need for technical guidelines for predicting 

 wind-wave generation over flooded coastal areas. The work was carried 

 out under the coastal construction program of the U.S. Array Coastal 

 Engineering Research Center (CERC) . 



These technical guidelines are an extension of the procedures given 

 in the Shore Protection Manual (SPM) (U.S. Army, Corps of Engineers, 

 Coastal Engineering Research Center, 1975). The design curves in the 

 SPM are limited to waves passing over a sandy bottom. A condensed des- 

 cription of the method is presented in CERC Coastal Engineering Technical 

 Aid No. 77-6 (Camfield, 1977). 



This report was prepared by Dr. Frederick E. Camfield, Hydraulic 

 Engineer, under the general supervision of R.A. Jachowski, Chief, Coastal 

 Design Criteria Branch. 



Comments on this publication are invited. 



Approved for publication in accordance with Public Law 166, 70th 

 Congress, approved 31 July 1945, as supplemented by Public Law 172, 

 88th Congress, approved 7 November 1963. 



jj Cl.....^^ 



/JOHN H. COUSINS 

 Colonel, Corps of Engineers 

 Commander and Director 



