Table 70 



Caseville Harbor Breakwater 



Caseville, Michigan 



Date(s) 

 1964 



Construction and Rehabilitation History 



1980 

 1986 



Construction of a 1 ,780-f t-long rubble-mound breakwater (Figure 188) 

 was completed. The structure had an 8-ft crest width, 1-V:1.5-H side 

 slopes on the channel side, and 1-V:1.75-H side slopes on the lake- 

 side (Figure 188). The lakeward 1,000-ft length (Section I) had a 

 crest el of +8.0 ft Iwd and 2-ton (min) cover stone, while the shore- 

 ward 780-ft section (Section II) included a crest el of +6.0 ft Iwd 

 and cover stone that was 1 ton (min) . 



Repair of the rubble-mound breakwater was performed. 



The structure presently is considered to be in good condition. An 

 aerial view of the Caseville Harbor breakwater is shown in 

 Figure 189. 



TYPICAL CROSS SECTION- RUBBLEMOUND BREAKWATER 



Figure 188. Caseville Harbor, Michigan 

 289 



