Table Location 



Struc- 

 ture Structure Date 



Type & Construction Length of Improve- 

 No. Materials ft Origin ment 







Lake Michigan 



(Continued) 











55 



Frankfort Harbor, 

 Mich. 



P(2) 

 B(2) 



TC,C,S,WP; 

 SSP,CSSP 



,CC, 



(>: 



,027 



1868 



R 



56 



Leland Harbor, 

 Mich. 



P(l) 

 B(l) 



S,CSSP,SSP,WP 



I: 



,675 



1936 



M,R 



57 



Greilickville 

 Harbor, Mich. 



B(3) 



SSP,S,CC,CSSP 



2, 



,005 



1950 



M 



58 



Charlevoix Harbor, 

 Mich. 



P(2) 



TC,S,CSSP, 

 CC,SSP 



,WP 



l; 



,688 



1872 



R 



59 



Petoskey Harbor, 

 Mich. 



B(l) 



TC,S, 



,CC 





I, 



,250 



1895 



R 









Lake Huron 













60 



Detour Harbor, 

 Mich. 



B(l) 



S,CC 







1.. 



,310 



1982 



N 



61 



Mackinac Island 

 Harbor, Mich. 



B(2) 



S 







I 



,860 



1914 



M 



62 



Mackinaw City 

 Harbor, Mich. 



B(2) 



S,C 









630 



1955 



N 



63 



Cheboygan Harbor, 

 Mich. 



B(l) 



S,C 









775 



1968 



R 



64 



Hammond Bay 

 Harbor, Mich. 



B(2) 



S 







1: 



,905 



1965 



R 



65 



Alpena Harbor, 

 Mich. 



B(l) 



S 









750 



1939 



M 



66 



Harrisville 



B(2) 



S 







2 



,780 



1959 



M,R 



Harbor, Mich. 



67 Au Sable Harbor, 

 Mich. 



J(2) CSSP,SSP,S,CC 2,407 1962 R 



68 Tawas Bay Harbor, 

 Mich. 



B(l) SSP,CC,S 



1,564 1977 N 



(Continued) 



(Sheet 5 of 8) 



15 



