This standard concrete slab bridge carries the Metra Milwaukee District North over Montrose Avenue

Irving Park, Chicago, Cook County, Illinois to Portage Park, Chicago, Cook County, Illinois

Owner: Canadian Pacific Kansas City Limited

Status: In Use

Built 1927

by

Chicago, Milwaukee & St. Paul Railway

Design:
2-27' and 2-19' concrete slab

Description:
Concrete slab bridge over Montrose Avenue

Significance:

This through plate girder bridge once carried the St. Charles Air Line over Wabash Avenue north of 16th Street

Near South Side, Chicago, Cook County, Illinois

Owner: Canadian National Railway

Status: Replaced by a new bridge

Built 1899

by

Detroit Bridge & Iron Works of Detroit, Michigan and J.S. Patterson Construction Company of Chicago, Illinois

for

St. Charles Air Line Railroad

Design:
61' through plate girder and 2-22' deck plate girders

Description:
Through plate girder bridge over Wabash Avenue

Significance:

This heavily modified concrete slab bridge carries the Bloomingdale (606) Trail over Paulina Street in the West Town neighborhood of Chicago

West Town, Chicago, Cook County, Illinois

Owner: City of Chicago

Status: Open to Pedestrian Traffic

Built 1914

by

Chicago, Milwaukee & St. Paul Railway

Design:
2-20' and 2-10' concrete slabs

Description:
Concrete slab bridge over Paulina Street

Significance:

This through plate girder bridge once carried the Milwaukee Road Bloomingdale Line over Elston Avenue

West Town, Chicago, Cook County, Illinois

Owner: City of Chicago

Status: Abandoned

Built 1899

by

Lassig Bridge & Iron Works of Chicago

for

Chicago, Milwaukee & St. Paul Railway

Design:
75' through plate girder

Description:
Through plate girder bridge over Elston Avenue

Significance:

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 trough floor steel stringer bridge is the middle of three parallel bridges across Ogden Avenue (former US Route 66) at this location

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

Owner: Union Pacific Railroad

Status: In Use

Built 1909

by

American Bridge Company (Toledo Branch)

for

Chicago & North Western Railway

Design:
4-28', 2-14' trough floor steel stringer

Description:
Trough floor steel stringer bridge over Ogden Avenue

Significance:

This bobtail through truss swing span carries the BNSF mainline over the Chicago Sanitary and Ship Canal in Lemont

Lemont, Cook County, Illinois

Owner: BNSF Railway

Status: In Use

Built 1898

by

Keystone Bridge Company of Pittsburgh, Pennsylvania and MacArthur Brothers Company of Chicago, Illinois

for

Atchison, Topeka & Santa Fe Railway

Design:
398' bobtail Pratt through truss swing span

Description:
Bobtail Pratt through truss swing span over Chicago Sanitary and Ship Canal

Significance:

This through plate girder bridge across Winchester Avenue is one of several similar structures along the former Grand Trunk Western 49th Street Line

New City, Chicago, Cook County, Illinois

Owner: Canadian National Railway

Status: Abandoned

Built 1907

by

American Bridge Company of New York

for

Grand Trunk Western Railroad

Design:
45' through plate girder

Description:
Through plate girder bridge over Winchester Avenue

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 standard concrete slab bridge carries the CTA Purple Line over Simpson Street in Evanston

Evanston, Cook County, Illinois

Owner: Chicago Transit Authority

Status: In Use

Built 1930

by

Unknown

for

Chicago, Milwaukee, St. Paul & Pacific Railroad

Design:
2-25' concrete slabs

Description:
Concrete slab bridge over Simpson Street

Significance: