Detroit & Mackinac Railway

Reporting mark: DM
D&M - Kawkawlin River Bridge (Bay County, Michigan)
Built 1896
Deck plate girder swing over Kawkawlin River on Detroit & Mackinac Railway
Intact but closed to all traffic

LSRC - Bay City Swing Bridge (Bay County, Michigan)
Built 1892
Pratt through truss bridge over Saginaw River on Lake State Railway (formerly Detroit & Mackinac RR)
Open to traffic

North Eastern State Trail - Cheboygan Bridge (Cheboygan County, Michigan)
Built 1904
Warren through truss with all verticals bridge over Cheboygan River on North Eastern State Trail (formerly Detroit & Mackinac RR)
Open to pedestrians