Ontonagon County

Bergland-Sidnaw Rail Trail - Agate Falls Bridge   [Map]
Deck plate girder bridge over Ontonagon River on Bergland to Sidnaw Rail Trail
Open to pedestrians/bicyclists/snowmobiles
Built 1900 by the American Bridge Company.
Bergland-Sidnaw Rail Trail - Baltimore River Bridge   [Map]
Deck plate girder bridge over Baltimore River on Bergland-Sidnaw Rail Trail
Open to pedestrians only
Built 1899
Bill Nicholls Trail - E. Branch Firesteel River Bridge   [Map]
Deck GirderBridge over E. Branch Firesteel River on Bill Nicholls Trail
Open to traffic
Built 1899
Bill Nicholls Trail - Middle Firesteel River Bridge   [Map]
Deck plate girder bridge over Middle Firesteel River on Bill Nicholls Trail
Open to traffic
Built 1899
Bill Nicholls Trail - W. Branch Firestone River Bridge   [Map]
Deck plate girder bridge over W. Branch Firesteel River
Open to traffic
Built 1899
Ontonagon River Bridge   [Map]
Lost swing bridge over Ontonagon River on M-64 in Ontonagon
Removed
Built 1939
Ontonagon River Bridge   [Map · Street View]
Pratt pony truss bridge over Ontonagon River on Abandoned Escanaba and Lake Superior Railroad
Intact but closed to all traffic
Built 1899
Ontonagon River Middle Branch Bridge   [Map]
Steel arch bridge over Middle Branch Ontonagon River on M-28
Open to traffic
Built 1930 by Meads & Anderson; rehabilitated 1992
Victoria Dam   [Map]
Inundated dam under Ontanagon River near Rockland
Inundated
Built 1929-1931; Innundated 1996