Table 64 



Haimnond Bay Breakwaters 



Hammond Bay, Michigan 



Date(s) 

 1965 



Construction and Rehabilitation History 



Construction of a 460-ft-long west breakwater and a 1 ,445-ft-long 

 east breakwater were completed (Figure 176) . The breakwaters were 

 rubble-mound structures with crest widths of 8.0 ft (Figure 176). 

 The crest el of the west breakwater (Section A) and the shoreward arm 

 of the east breakwater (Section D) was +8 ft Iwd, while the remaining 

 portions of the east breakwater (Sections B and C) had a crest el of 

 +10 ft Iwd. Cover stone for Sections A and D was 1 ton (min) , and 

 for Sections B and C cover stone of 3.5 tons (min) was used in con- 

 struction. Toe stone for Sections A and D was 3 tons and for Sec- 

 tions B and C it was 3.5 tons. Side slopes of 1V:1.5H were also 

 used. 



1982 A total of 210 tons of 3- to 5-ton cover stone was added to supple- 

 ment the existing cover stone. The cost of these repairs was about 

 $133,000. 



1984 An inspection of the breakwaters noted some winter storm damage to 

 the east breakwater. Some cover stone and core stone was missing 

 over about a 70-ft-long area. The west breakwater was in good 

 condition. 



1986 The breakwaters presently are considered in fair condition. An 

 aerial view of the Hammond Bay breakwaters is shown in Figure 177. 



TYPICAL SECTION 



Figure 176. Hammond Bay Harbor, Michigan 



274 



