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Historic Bridges: Ontonagon County, Michigan

Special Bridge Conditions Legend
! 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.

Total Bridges Found: 9

Browse Bridges In Google Maps

Agate Falls Bridge
Historic Significance Rating (HSR)
National HSR. Local HSR.
Click to visit page.
M-28 Over Middle Branch Ontonagon River

Rural: Ontonagon County, Michigan
Metal Two-Hinged Solid Ribbed Deck Arch, Fixed and Approach Spans: Concrete Slab, Fixed
Length: 193 ft
Main Span: 150 ft
Roadway: 32.2 ft
Main Spans: 1
Built 1930 By: Meads and Anderson and Michigan State Highway Department
Agate Falls Railroad Bridge
Historic Significance Rating (HSR)
National HSR. Local HSR.
Click to visit page.
Railroad (Bergland to Sidnaw Rail Trail / Trail 8) Over Middle Branch Ontonagon River

Rural: Ontonagon County, Michigan
Metal Deck Girder, Fixed
Built 1900 By: American Bridge Company of New York, New York
Baltimore River Railroad Bridge
Historic Significance Rating (HSR)
National HSR. Local HSR.
Click to visit page.
Railroad (Bergland to Sidnaw Rail Trail / Trail 8) Over Baltimore River

Rural: Ontonagon County, Michigan
Metal Deck Girder, Fixed
Length: 435 ft
Roadway: 8 ft
Main Spans: 13
Built 1899 By: Lassig Bridge and Iron Works of Chicago, Illinois
M-26 West Branch Firesteel River Bridge
Historic Significance Rating (HSR)
National HSR. Local HSR.
Click to visit page.
M-26 Over West Branch Firesteel River

Rural: Ontonagon County, Michigan
Metal Cantilever Deck Girder, Fixed
Length: 270 ft
Main Span: 102 ft
Roadway: 28 ft
Main Spans: 3
Built 1952 By: Unknown and Michigan State Highway Department
M-38 Bridge
Historic Significance Rating (HSR)
National HSR. Local HSR.
Click to visit page.
M-38 Over West Branch Firesteel River

Rural: Ontonagon County, Michigan
Metal Cantilever Deck Girder, Fixed
Length: 240 ft
Main Span: 90 ft
Roadway: 31 ft
Main Spans: 3
Built 1958 By: Jackson Construction Company and Michigan State Highway Department
Old East Shore Road Bridge
Historic Significance Rating (HSR)
National HSR. Local HSR.
Click to visit page.
East Shore Road (Old Alignment) Over West Branch Ontonagon River

Rural: Ontonagon County, Michigan
Metal 3 Panel Rivet-Connected Warren Pony Truss, Fixed
Main Spans: 1
Built By: Unknown
Old M-26 West Branch Firesteel River Bridge
Historic Significance Rating (HSR)
National HSR. Local HSR.
Click to visit page.
Old M-26 Over West Branch Firesteel River

Rural: Ontonagon County, Michigan
Concrete Closed Spandrel Deck Arch, Fixed
Length: 35 ft
Main Spans: 1
Built 1922 By: Unknown and Michigan State Highway Department
Ontonagon Railroad Bridge
Historic Significance Rating (HSR)
National HSR. Local HSR.
Click to visit page.
Railroad (Escanaba and Lake Superior Railroad) Over Ontonagon River

Ontonagon: Ontonagon County, Michigan
Metal 6 Panel Pin-Connected Pratt Full-Slope Pony Truss, Fixed and Approach Spans: Metal Deck Girder, Fixed
Length: 470 ft
Main Span: 100 ft
Roadway: 15 ft
Main Spans: 2
Built 1899 By: Lassig Bridge and Iron Works of Chicago, Illinois
US-45 East Branch Ontonagon River Bridge
Historic Significance Rating (HSR)
National HSR. Local HSR.
Click to visit page.
US-45 Over East Branch Ontonagon River

Rural: Ontonagon County, Michigan
Metal Continuous Deck Girder, Fixed
Length: 384 ft
Main Span: 144 ft
Roadway: 35 ft
Main Spans: 3
Built 1958 By: Jackson Construction Company and Michigan State Highway Department

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