This trough floor steel stringer bridge carries the Union Pacific North Line over Bryn Mawr Avenue in the Lincoln Square neighborhood of Chicago

Lincoln Square, Chicago, Cook County, Illinois

Owner: Union Pacific Railroad

Status: In Use

Built 1907

by

American Bridge Company of New York

for

Chicago & North Western Railway

Design:
2-21' and 2-12' trough floor steel stringer

Description:
Trough floor steel stringer bridge over Bryn Mawr Avenue

Significance:

This concrete arch bridge crosses the West Fork North Branch Chicago River near Techny Road

Northbrook, Cook County, Illinois

Owner: Union Pacific Railroad

Status: In Use

Built 1911

by

Chicago & North Western Railway

Design:
24' concrete arch

Description:
Concrete arch bridge over West Fork North Branch Chicago River

Significance:

This trough floor steel stringer bridge carries the Union Pacific North and Northwest Lines across Racine Avenue near Augusta Boulevard

West Town, Chicago, Cook County, Illinois

Owner: Union Pacific Railroad

Status: In Use

Built 1910

by

Wisconsin Bridge & Iron Company of North Milwaukee, Wisconsin

for

Chicago & North Western Railway

Design:
35' trough floor steel stringer

Description:
Trough floor steel stringer bridge over Racine Avenue

Significance:

This through plate girder bridge once carried the Union Pacific North Line over Montrose Avenue in the North Center neighborhood of Chicago

North Center, Chicago, Cook County, Illinois to Lincoln Square, Chicago, Cook County, Illinois

Owner: Union Pacific Railroad

Status: Replaced by a new bridge

Built 1897

by

Lassig Bridge & Iron Works of Chicago

for

Chicago & North Western Railway

Design:
1-43' and 2-20' through plate girders

Description:
Through plate girder bridge over Montrose Avenue

Significance:

This trough floor steel stringer bridge carries the Union Pacific North, Northwest and West Lines over Milwaukee Avenue

Near West Side, Chicago, Cook County, Illinois

Owner: Union Pacific Railroad

Status: In Use

Built 1910

by

American Bridge Company of New York and Bates & Rogers Construction Company of Chicago, Illinois

for

Chicago & North Western Railway

Design:
2-23' and 2-14' trough floor steel stringer

Description:
Trough floor steel stringer bridge over Milwaukee Avenue

Significance:

This unusual through plate girder bridge carries the Union Pacific North Line over Addison Street and Lincoln Avenue in the North Center neighborhood of Chicago

North Center, Chicago, Cook County, Illinois

Owner: Union Pacific Railroad

Status: In Use

Built 1959

by

Unknown

for

Chicago & North Western Railway

Design:
5 span flared through plate girder

Description:
Through plate girder bridge over Addison Street and Lincoln Avenue

Significance:

This through plate girder bridge once carried the Union Pacific North Line over Balmoral Avenue in the Lincoln Square neighborhood of Chicago

Lincoln Square, Chicago, Cook County, Illinois

Owner: Union Pacific Railroad

Status: Replaced by a new bridge

Built 1897

by

Lassig Bridge & Iron Works of Chicago

for

Chicago & North Western Railway

Design:
70' through plate girder

Description:
Through plate girder bridge over Balmoral Avenue

Significance:

This large trough floor steel stringer bridge carries the Metra Union Pacific lines over Jefferson Street and Hubbard Street

West Town, Chicago, Cook County, Illinois

Owner: Union Pacific Railroad

Status: In Use

Built 1910

by

American Bridge Company of New York and Bates & Rogers Construction Company of Chicago, Illinois

for

Chicago & North Western Railway

Design:
12 span trough floor steel stringer

Description:
Trough floor steel stringer bridge over Jefferson Street and Hubbard Street

Significance:

This iconic through truss bascule bridge carries Wells Street and the CTA Brown and Purple Lines over the Chicago River

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

Owner: City of Chicago

Status: In Use

Built 1922

by

Fort Pitt Bridge Company of Pittsburgh, Pennsylvania; FitzSimons & Connell Dredge & Dock Company of Chicago, Illinois and Ketler-Elliott Erection Company of Chicago, Illinois

for

City of Chicago

Design:
268' Double deck Warren through truss bascule (double leaf fixed trunnion)

Description:
Double leaf Warren through truss bascule bridge over Chicago River

Significance:

This concrete encased beam bridge carries the Metra Electric District over Dixie Highway in Homewood

Homewood, Cook County, Illinois

Owner: Canadian National Railway

Status: In Use

Built 1923

by

Bates & Rogers Construction Company of Chicago, Illinois

for

Illinois Central Railroad

Design:
2-20' concrete encased beam and 2-12' concrete slabs

Description:
Concrete encased beam bridge over Dixie Highway

Significance: