Alexander McGaw of Philadelphia


Interstate Bridge

Image name

Interstate Bridge

This through truss swing bridge has been mostly removed and crosses the St. Louis River below the Blatnik Bridge

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

Owner: Duluth Port Authority

Status: Partially Demolished, Remaining Spans Open to Trail 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