Table 10 

 Sunmary of Dissimilar Armor Usage 















Dissimilar 



Armor 



Date 



Primary 







Weight 



Basis for 



Location 



Type 



Tons 

 2 



Placed 

 1980 



Selection 



East Breakwater, 



Dolos 



Other* 



Cleveland Harbor 



Stone 



9-20 



1985 



Model tests 



Inlet, New Jersey 











Outer Breakwater, 



Dolos 



40 



1974 



Other 



Crescent City 



Dolos 



42 



1986 



Model tests 



Harbor, California 











Hilo Breakwater, 



Tribar 



7.5 



1981 



Other 



Hilo Harbor, 











Hawaii 











North and South 



Block 



100 



1930-1958 



Other 



Jetties, Humboldt 



Tetrahedron 



12 



1930-1958 



Other 



Bay, California 



Cube 



100 



1965 



Other 





Dolos 



42-43 



1971-1972 



Model tests 





Dolos 



42 



1986 



Other 



East Breakwater, 



Tetrapod 



33 



1956 



Other 



Kahului Harbor, 



Tribar 



35 



1966 



Model tests 



Maui, Hawaii 



Tribar 



50 



1966 



Model tests 





Dolos 



6 



1977 



Other 





Dolos 



20 



1977 



Other 





Dolos 



30 



1977 



Other 





Tribar 



9 



1982 



Model tests 



West Breakwater, 



Tetrapod 



33 



1956 



Other 



Kahului Harbor, 



Tribar 



35 



1966 



Model tests 



Maui, Hawaii 



Tribar 



50 



1966 



Model tests 





Tribar 



19 



1969 



Other 





Tribar 



19 



1973 



Other 





Tribar 



35 



1973 



Other 





Dolos 



20 



1977 



Other 





Dolos 



30 



1977 



Other 





Tribar 



6.5 



1982 



Model tests 





Tribar 



11 



1982 



Model tests 





Tribar 



25 



1982 



Model tests 



(Continued) 



"Other" includes design guidance for new construction, prototype experi- 

 ence, engineering judgment, and inferences from model tests of similar 

 structures. 



