This Baltimore through truss swing bridge crosses the St. Louis River south of US Highway 2

Superior, Douglas County, Wisconsin to Duluth, St. Louis County, Minnesota

Owner: BNSF Railway

Status: In Use

Built 1912

by

American Bridge Company of New York and Pittsburgh Construction Company of Pittsburgh, Pennsylvania

for

Northern Pacific Railway

Design:
425' Baltimore through truss swing span, 2-80' through plate girders and timber pile trestle

Description:
Baltimore through truss swing bridge over St. Louis River

Significance:

This through truss swing bridge once carried the Great Northern Railway across the St. Louis River below the present-day Blatnik Bridge

Superior, Douglas County, Wisconsin to Duluth, St. Louis County, Minnesota

Owner: Duluth Port Authority

Status: Partially Demolished, Remaining Spans Open to Pedestrian Traffic

Built 1897

by

Pennsylvania Steel Company of Steelton, Pennsylvania

for

Duluth-Superior Bridge Company

Design:
302' Pennsylvania through truss

Description:
Partially removed through truss bridge over St. Louis River

Significance:

This through plate girder swing bridge carries the former Northern Pacific Railway over the Nemadji River on the east side of Superior

Superior, Douglas County, Wisconsin

Owner: City of Superior

Status: Open to Pedestrian Traffic

Built 1904

by

American Bridge Company of New York and W.S. Hewitt Company of Minneapolis, Minnesota

for

Northern Pacific Railway

Design:
160' through plate girder swing span and timber pile trestle

Description:
Through plate girder swing bridge over Nemadji River

Significance:

This through plate girder bridge carries the former Chicago, St. Paul, Minneapolis & Omaha Railway over 6th Avenue in Superior

Superior, Douglas County, Wisconsin

Owner: Union Pacific Railroad

Status: In Use

Built 1915

by

Unknown

for

Chicago, St. Paul, Minneapolis & Omaha Railway

Design:
43' through plate girder and 2-15' steel stringer

Description:
Through plate girder bridge over 6th Avenue

Significance:

This large deck plate girder and steel stringer bridge carries the former Chicago, St. Paul, Minneapolis & Omaha Railway over the Nemadji River in Superior

Superior, Douglas County, Wisconsin

Owner: Union Pacific Railroad

Status: In Use

Built 1916 and 1949-1954

by

Chicago Bridge & Iron Works of Chicago, Illinois

for

Chicago, St. Paul, Minneapolis & Omaha Railway

Design:
80' deck plate girder, 79-28' steel stringers and timber pile trestle

Description:
Deck plate girder and steel stringer bridge over Nemadji River

Significance: