As with all regression models presented in this report, this model is 

 only valid for the range of conditions tested and for the specific project 

 site. The range of variables, both dimensional and nondimensional, used 

 in this analysis is given in Table 13. 



Table 13 



Minimum and Maximum Values for Parameters in the 



Regression Analysis with 1978 Profile 



Parameter 



Min 



Max 



SWL, ft mlw 



9.5 



16.6 



Wave height, ft 



3.1 



11.7 



Wave period, sec 



8.1 



15.9 



Seawall freeboard, ft 



4.4 



11.5 



Beach freeboard, ft 



-7.4 



-0.3 



Overtopping rate, cfs/ft 



0.0052 



1 .3553 



P/1 



1.026 



2.682 



PI2. 



0.330 



2.014 



PB 



0.826 



3.773 



P/6 



33.029 



294.454 



a 



0.0000 



0.0229 



Combined regression analysis for Tasks A, B, C, and C+ 



All data collected in Tasks A, B, C, and C-i- were combined into a sin- 

 gle data set to develop a general regression model for the overtopping at 

 Revere Beach. The combined data set includes all data listed in Tables 8 

 and 12, with the exception of the outlier mentioned above under 1978 pro- 

 file. The same dimensionless parameters used in the analysis of the 1978 

 profile were used in the current analysis, but PIA was added to include the 

 beach slope. The variables are therefore defined as 



Q' = QKg*f) 



3x1/2 



PIl = (f-b)/f 

 PI2 = Hlf 

 PIA = cote 

 P/5 = swl// 



42 



Chapter 3 Research Tasks A, B, and C 



