This through plate girder bridge crosses the Tongue River in Cavalier

Cavalier, Pembina County, North Dakota

Owner: Dakota Northern Railroad

Status: In Use

Built 1899 at an unknown location

by

Keystone Bridge Company of Pittsburgh, Pennsylvania

for

Great Northern Railway

Design:
60' through plate girder and trestle

Description:
Through plate girder bridge over Tongue River

Significance:

This large through truss swing bridge carries the former Illinois Central Railroad over the Mississippi River at Dubuque

Dubuque, Dubuque County, Iowa to East Dubuque, Jo Daviess County, Illinois

Owner: Canadian National Railway

Status: In Use

Built 1892 and 1900

by

Keystone Bridge Company of Pittsburgh, Pennsylvania and American Bridge Works of Chicago, Illinois

for

Illinois Central Railroad

Design:
356' Pratt through truss swing span and 2-250', 3-225' Parker through trusses

Description:
Through truss swing bridge over Mississippi River

Significance:

This steel arch bridge is among the most iconic and significant bridges in the United States

St. Louis, St. Louis City, Missouri to East St. Louis, St. Clair County, Illinois

Owner: City of St. Louis

Status: In Use by Automobiles and Light Rail

Built 1867-1874

by

Keystone Bridge Company of Pittsburgh, Pennsylvania and James B. Eads

for

St. Louis and Illinois Bridge Company

Design:
520' and 2-502' ribbed steel deck arch, stone arch and deck girder

Description:
Ribbed steel deck arch bridge over Mississippi River, railroads and city streets

Significance:

This bridge is a rare example of a pin-connected Warren through truss

Lanesboro, Fillmore County, Minnesota

Owner: Minnesota Department of Natural Resources

Status: Open to Trail Traffic

Built 1888 and relocated here 1910

by

Keystone Bridge Company of Pittsburgh, Pennsylvania

for

Chicago, Milwaukee & St. Paul Railway

Design:
135' pin-connected Warren through truss

Description:
Warren through truss bridge over South Branch Root River

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 historic Pratt through truss bridge crosses the Cedar River north of Austin

Austin, Mower County, Minnesota

Owner: Ramsey County/Minnesota Department of Natural Resources

Status: Closed to all Traffic

Built 1911 using a span fabricated 1887

by

Keystone Bridge Company of Pittsburgh, Pennsylvania

for

Chicago, Milwaukee & St. Paul Railway

Design:
2-102' Pratt through trusses

Description:
Pratt through truss bridge over Cedar River

Significance: