measurements and the relations derived from these past studies. In Chapter 4, a new 

 flume study is discussed where breakwater profiles were measured as damage 

 progressed on a breakwater cross section exposed to normally-incident depth-limited 

 breaking waves. A new device for measuring breakwater profiles is discussed in some 

 detail. New parameters are defined for prescribing the engineering characteristics of the 

 eroded profile, hi Chapter 5, measurements from this study are discussed in detail. In 

 Chapter 6, profile and wave data are analyzed to produce spatial and temporal relations 

 for predicting the mean and standard deviation of eroded area, eroded depth, eroded 

 length, and remaining cover depth on a breakwater that is exposed to normally-incident 

 depth-limited wave conditions. These equations should be valuable in support of 

 reliability analyses as part of comprehensive risk analyses. 



