RUBBLE 



Rubble 



SECTION 



Broken concrete- rubble revetment 

 on waterfront, Seattle, Wash. 



Prototype Installation : 



Numerous rubble revetments are found in the United States as well as 

 other countries . 



Wave Tank Tests : 



Unknown . 



Design Factors : 



Zero-damage wave height: Depends on rubble size. 



Wave runup:' 0.5 to 0.7 compared to smooth slope (estimated). 



Wave reflection: Low (estimated). 



Remarks : 



Rubble can be concrete, brick, asphalt, etc. 



Rubble can be cost-effective for temporary protection or where 

 aesthetics and beach recreation use are not a concern. 



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