t
Date
ture
Structure
-
of
Type
Construction
Length
Improve
Table
Lo c a t i o n
Materials
Origin
men t
No.
Lake M i c h i g a n ( C o n t i n u e d )
F r a n k f o r t Harbor,
P (2)
S
6,027
R
1868
Mich.
B (2)
SSP, CSSP
Leland Harbor,
1)
1,675
1936
Mich.
G re i l i c k v i l l e
B(3)
CSSP
S
1950
2,005
M
H a r b o r , Mich.
P(2)
C h a r l e v o i x Harbor,
1,688
1872
R
cc,
Mich.
P e t o s k e y Harbor,
1,250
1895
R
.
Mich
Lake Huron
N
1982
Detour Harbor,
1,310
Mich.
Mackinac I s l a n d
1,860
1914
M
H a r b o r s Mich.
Mackinaw C i t y
630
N
1955
H a r b o r , Mich.
Cheboygan H a r b o r ,
1968
775
R
Mich.
1965
1,905
R
Bay
H a r b o r , Mich.
1939
750
M
Alpena Harbor,
Mich.
2,780
1959
Harrisville
H a r b o r , Mich.
1962
R
2 407
Au S a b l e H a r b o r ,
Mich.
N
1977
1,564
Bay H a r b o r ,
Mich.
(Continued)
( S h e e t 5 of 8 )
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