Superior, St. Louis County , Minnesota

Random Bridges

Grassy Point Swing Bridge
Image name

Grassy Point Swing Bridge

(Northern Pacific Railway Bridge #94.6)

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:

Regional

Interstate Bridge
Image name

Interstate Bridge

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:

Regional