Amity Creek Bridge (St. Louis County, Minnesota)
Built 1912
Concrete arch bridge over Amity Creek on Skyline Road in Duluth
Open to traffic

Blatnik Bridge (Douglas County, Wisconsin)
Built 1961; rehabilitated 1994
Steel through arch bridge over St. Louis Bay on I-535/US 53 between Duluth and Superior
Open to traffic

Chester Creek Bridge (St. Louis County, Minnesota)
Built 1919; rehabilitated 2002
Concrete arch bridge over Chester Creek on 9th Street in Duluth
Open to traffic

Chester Creek Bridge (St. Louis County, Minnesota)
Built 1910
Stone arch bridge over Chester Creek on E. Superior Street in Duluth
Open to traffic

Chester River Bridge (St. Louis County, Minnesota)
Built 1933
Stone arch bridge over Chester River on CR 9 in Duluth
Open to traffic

Chesters Creek Bridge (St. Louis County, Minnesota)
Built 1915
Stone arch bridge over Chesters Creek on London Road in Duluth
Open to traffic

Chesters Creek Bridge (St. Louis County, Minnesota)
Built 1915
Stone arch bridge over Chesters Creek on 3rd Street in Duluth
Open to traffic

Chesters Creek Bridge (St. Louis County, Minnesota)
Built 1915
Stone arch bridge over Chesters Creek on 2nd Street in Duluth
Open to traffic

Duluth Aerial Lift Bridge (St. Louis County, Minnesota)
Opened as a transporter bridge in 1905; reconstructed as a vertical-lift bridge in 1930; rehabilitated 2000
Vertical-lift through truss bridge over the Duluth Ship Canal on Lake Avenue in Duluth
Open to traffic

Lester River Bridge (St. Louis County, Minnesota)
Built 1935
Concrete arch bridge over Lester River on MN 61 in Duluth
Open to traffic

Miller Creek Bridge (St. Louis County, Minnesota)
Built 1940
Concrete arch bridge over Miller Creek on US 53 in Duluth
Open to traffic

Miller Creek Bridge (St. Louis County, Minnesota)
Built 1925
Concrete arch bridge over Miller Creek on 26th Avenue W in Duluth
Open to traffic

Miller Creek Bridge (St. Louis County, Minnesota)
Built 1930
Stone arch bridge over Miller Creek on Lincoln Parkway in Duluth
Open to traffic

Miller Creek Bridge (St. Louis County, Minnesota)
Built 1927
Concrete arch bridge over Miller Creek on MN 361 (10th Street) in Duluth
Open to traffic

Millers Creek Bridge (St. Louis County, Minnesota)
Built 1925
Concrete arch bridge over Millers Creek on 3rd Street W in Duluth
Open to traffic

Millers Creek Bridge (St. Louis County, Minnesota)
Built 1904
Stone arch bridge over Millers Creek on Michigan Street in Duluth
Open to traffic

Millers Creek Bridge (St. Louis County, Minnesota)
Built 1904
Stone arch bridge over Millers Creek on 1st Street in Duluth
Open to traffic

Mission Creek Bridge (St. Louis County, Minnesota)
Built 1937
Steel arch bridge over Mission Creek on MN 23 in Duluth
Open to traffic

St. Louis River Bridge (St. Louis County, Minnesota)
Built 1919
Concrete arch bridge over St. Louis River on MN 23 in Duluth
Open to traffic

Stewart Creek Bridge (St. Louis County, Minnesota)
Built 1919
Stone arch bridge over Stewart Creek on Skyline Parkway in Duluth
Open to traffic

Superior Street Bridge (St. Louis County, Minnesota)
Built 1904
Stone arch bridge over Miller Creek on Superior Street in Duluth
Open to traffic

Tischer Creek Bridge (St. Louis County, Minnesota)
Built 1925
Concrete arch bridge over Tischer Creek on 4th Street in Duluth
Open to traffic

Tischers Creek Bridge (St. Louis County, Minnesota)
Built 1915
Stone arch bridge over Tischers Creek on MN 61 in Duluth
Open to traffic

Tischers Creek Bridge (St. Louis County, Minnesota)
Built 1922
Concrete arch bridge over Tischers Creek on MN 923 in Duluth
Open to traffic