Status:
Location: 44.454216,-83.675174
Carries Old M-65 over Au Sable River
Design: truss/pony/parker
Design Details: Two-span Parker pony truss
Total Length: 319.9 Feet
Span Length: 119.8 Feet
Overview: Pony truss bridge over Au Sable River on Old M-65
History: Built 1931; bypassed 2003
Built: 1931
Location: Iosco County
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419535
Bridge & Dam. Au Sable River, Mio, Michigan
1934 postcard image provided by David Shedlock
469917
Au Sable River Bridge
looking north
Photo from Wikipedia
469918
Au Sable River Bridge
looking west
Photo from old postcard
Status: Open to traffic
Location: 44.407307,-83.324786
Carries US-23 over AU SABLE RIVER
Design: beam/stringer
Design Details:
Total Length: 233.0 Feet
Span Length: 84.0 Feet
Overview: Stringer bridge over AU SABLE RIVER on US-23
History:
Built: 1972
Location: Iosco County
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Status: Replaced by a new bridge
Location: 44.407299,-83.324756
Carries U.S. 23 over Au Sable River
Design: truss/through/pratt
Design Details: Pratt through truss
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Lost Pratt through truss bridge over Au Sable River on U.S. 23
History:
Built:
Location: Iosco County
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485542
US 23 Au Sable Bridge
Did this pony truss replace the through truss?
Photo from old postcard
495233
U.S. 23 Au Sable Bridge
1930 view
Photo from old postcard
Status: Replaced by a new bridge
Location: 44.262844,-83.803176
Carries Trunk Line over Au Gres River
Design: girder/pony/plate
Design Details: Pony plate girder
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Lost Pony/through plate girder bridge over Au Gres River on M-65 (formerly U.S. 23, formerly M-10)
History:
Built:
Location: Iosco County
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509315
Photo taken from Biennial Report of the State Highway Commissioner - 1916
Special Bridge Conditions Legend: R - Former location of relocated bridge. ! - At risk for demolition or destruction. X - Confirmed demolished or collapsed. S - Dismantled and/or in storage. L - Severe loss of historic integrity due to alteration.
