7.342 Wall Shoreward of Stillwater Line . For walls landward of the still- 

 water line as shown in Figure 7-80 the velocity v' of the water mass at 

 the structure at any location between the SWL and the point of maximum 

 wave runup may be approximated by. 



v' = C 1- 



= Vgdj 



^2 



(7-94) 



and the wave height h' above the ground surface by. 



^■ = K i-r ' 



(7-95) 



where 



distance from the Stillwater line to the structure, 



distance from the Stillwater line to the limit of wave uprush; 

 X2 = 2H2, cot 3 = 2H2j/m Note: (The actual wave runup as found 

 from the method outlined in Section 7.21 could be substituted 

 for the value 2H2,.) g = the angle of beach slope, and m = tan 



r ^c^ 



2Hf 



See insert for wove 

 " pressure — 



Shoreline 



Figure 7-80. Wave Pressures from Broken Waves: Wall Landward 

 of Stillwater Line 



7-160 



