Table 8 

 La Pointe Harbor Breakwater 

 Madeline Island, Wisconsin 



Date(s) Construction and Rehabilitation History 



1967 A 200-ft-long extension of an existing rock-filled timber crib break- 

 water was completed by the Corps (Figure 19) . The existing structure 

 was 37.3 ft wide with a crest el of +4 ft Iwd. It was constructed by 

 local interests (Figures 19 and 20, Section A). The initial Ik ft of 

 the extension was built with steel sheetpiling that was sand filled 

 and capped with stone (Figures 19 and 20, Section B) . It was 25 ft 

 wide with a crest el of +7 ft Iwd on the lakeside and +4 ft Iwd on 

 the harbor side. The lakeward 126-ft length of extension was a cel- 

 lular sheet-pile structure with cell diameters of 20.36 ft. They 

 were sand filled and had stone caps (Figures 19 and 20, Section C) . 

 The crest el of the sheet pile was +7 ft Iwd on the lakeside and 

 ranged from +4 to +7 ft Iwd on the harbor side. Riprap was placed 

 along the toe of the cellular structure. 



1986 No repairs to the structure have been noted, and it is presently in 

 good condition. 



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