PREFACE 



This report describes a means of determining wave runup on coastal 

 structures having uniformly sloping, smooth surfaces. The report is 

 based principally on small-scale test results and analyses of Saville 

 (1956) and Savage (1959) as reanalyzed by Stoa (1978). The work was 

 conducted under the coastal engineering research program of the U.S. Army 

 Coastal Engineering Research Center (CERC) . 



The technical guidelines presented in this report supersede the design 

 runup curves for smooth slopes given in the Shore Protection Manual (SPM) 

 (U.S. Army, Corps of Engineers, Coastal Engineering Research Center, 

 1977). The revised runup curves given here include a wider range of 

 relative depth, dg/H^J,. These results are based on experiments using 

 regular waves. Ahrens (1977a, 1977b) presented methods for estimating 

 runup and overtopping, respectively, from irregular waves based on results 

 of regular wave testing. 



The report was prepared by Philip N. Stoa, Oceanographer, under the 

 general supervision of Robert A. Jachowski, Chief, Coastal Design 

 Criteria Branch. 



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. 



'JOHN H. COUSINS 

 Colonel, Corps of Engineers 

 Commander and Director 



