the selected relationships by laboratory reproduction of a prototype-scale scour event, and to examine the 

 relative effect of the scaling parameters on the laboratory results. 



11. The purpose of the study was to arrive at a validated set of modeling criteria and constraints so 

 that future efforts can focus on systematic laboratory investigation of scour phenomena with the goal of 

 developing engineering tools for the prediction of scour under a variety of environmental conditions. 



Scope of Report 



12. Part II of this report provides the background and reasoning supporting the selection of the scaling 

 criteria used in this study. Part III describes the experimental facilities and the testing procedure used in 

 the laboratory tests. Part IV presents and discusses results from regular and irregular wave verification 

 tests. Part V summarizes results from regular wave tests in which various parameters were changed to 

 examine the effects of these perturbations on the resulting profiles. Part VI compares profiles from the base 

 case condition (regular waves) with the results of similar tests carried out using irregular waves. Part VII 

 briefly examines profile results obtained after a vertical seawall was added to the base condition. Finally, 

 the testing program and key results are summarized in Part VIII. 



13. Appendices to this report give a description of the wave record analysis, present tabulated wave 

 statistics for each experiment, provide tabulated and plotted profiles for all experiments, and present 

 complete plotted comparisons to supplement those shown in the main text of the report. 



11 



