This iconic quadrangular lattice through truss swing bridge carries the former Chicago & North Western Railway mainline over the Milwaukee River near Erie Street in Milwaukee

Downtown, Milwaukee, Milwaukee County, Wisconsin

Owner: City of Milwaukee

Status: Abandoned, East Approach Reused as Pedestrian Walkway

Built 1915 and c. 1935

by

American Bridge Company of New York; Cleary-White Construction Company of Chicago, Illinois and Unknown

for

Chicago & North Western Railway

Design:
242' quadrangular lattice through truss swing span and 7-23' steel stringers

Description:
Quadrangular lattice through truss swing bridge over Milwaukee River

Significance:

This massive vertical lift bridge carries Amtrak and the Metra Southwest Service and Heritage Corridor over the South Branch Chicago River east of Canal Street

Armour Square, Chicago, Cook County, Illinois to Lower West Side, Chicago, Cook County, Illinois

Owner: Amtrak

Status: In Use

Built 1914

by

Pennsylvania Steel Company of Steelton, Pennsylvania and Great Lakes Dredge & Dock Company of Chicago, Illinois

for

Pittsburgh, Fort Wayne & Chicago Railway

Design:
280' Parker through truss vertical lift bridge

Description:
Parker through truss vertical lift bridge over South Branch Chicago River

Significance:

This large Strauss trunnion bascule bridge carries the Union Pacific North Line over the North Branch Chicago River

Logan Square, Chicago, Cook County, Illinois to Lincoln Park, Chicago, Cook County, Illinois

Owner: Union Pacific Railroad

Status: In Use

Built 1916

by

American Bridge Company of New York; Great Lakes Dredge & Dock Company of Chicago, Illinois and Kelly-Atkinson Construction Company of Chicago, Illinois

for

Chicago & North Western Railway

Design:
180' Warren through truss Strauss trunnion bascule span and deck plate girder

Description:
Strauss trunnion bascule bridge over North Branch Chicago River

Significance:

This iconic Strauss trunnion bascule bridge carries the original Chicago & North Western Railway line over the North Branch of the Chicago River

Near North Side, Chicago, Cook County, Illinois to Near West Side, Chicago, Cook County, Illinois

Owner: Union Pacific Railroad

Status: Closed to Traffic

Built 1908

by

Toledo-Massillon Bridge Company of Toledo, Ohio and Great Lakes Dredge & Dock Company of Chicago, Illinois

for

Chicago & North Western Railway

Design:
170' Warren through truss Strauss trunnion bascule and 27' deck plate girder

Description:
Strauss trunnion bascule bridge over North Branch Chicago River

Significance: