Photo 3. End view of a typical tribar section before wave attack at 

 lV-on-2H sea-side structure slope; W = 0.627 lb 





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Photo 4. Sea-side view after attack of 1.70-sec, 0.54-ft waves; 

 d = 0.55 ft; W = 0.276 lb; lV-on-2H structure slope; dolos armor 



