This Pratt pony truss bridge crosses the Cedar River with two distinctively different sized spans

Charles City, Floyd County, Iowa

Owner: Canadian Pacific Kansas City Limited

Status: Open to Traffic

Built 1897

by

J.G. Wagner Company of Milwaukee, Wisconsin

for

Chicago, Milwaukee & St. Paul Railway

Design:
2 span pin-connected Pratt pony truss

Description:
Pratt pony truss bridge over Cedar River

Significance:

This deck plate girder bridge carries a former Chicago & North Western Railway line over the East Fork Des Moines River south of Dakota City

Dakota City, Humboldt County, Iowa

Owner: Humboldt County Conservation Board

Status: Open to Pedestrian Traffic

Built 1902

by

American Bridge Company of New York and Unknown

for

Chicago & North Western Railway

Design:
4-73' and 1-40' deck plate girders

Description:
Deck plate girder bridge over East Fork Des Moines River

Significance:

This quadrangular lattice through truss bridge carries a former Chicago & North Western Railway line over a former Chicago, Milwaukee, St. Paul & Pacific Railroad (Milwaukee Road) line in Algona

Algona, Kossuth County, Iowa

Owner: Union Pacific Railroad

Status: In Use

Built 1917

by

American Bridge Company of New York and Unknown

for

Chicago & North Western Railway

Design:
120' quadrangular lattice through truss

Description:
Quadrangular lattice through truss bridge over CPKC (former Chicago, Milwaukee, St. Paul & Pacific Railroad)

Significance:

This through and deck plate girder bridge carries a former Chicago, Rock Island & Pacific Railroad (Rock Island) line over the West Fork Des Moines River south of Estherville

Estherville, Emmet County, Iowa

Owner: Union Pacific Railroad

Status: In Use

Built 1900 and 1902

by

American Bridge Company of New York and Unknown

for

Burlington, Cedar Rapids & Northern Railway

Design:
100' through plate girder and 6-60' deck plate girders

Description:
Through and deck plate girder bridge over West Fork Des Moines River

Significance:

This through plate girder bridge carries a former Chicago & North Western Railway mainline over McCandless Cleghorn Ditch alongside County Road K45 in Whiting

Whiting, Monona County, Iowa

Owner: Union Pacific Railroad

Status: In Use

Built 1906 and 1913

by

Pennsylvania Steel Company of Steelton, Pennsylvania and Unknown

for

Chicago & North Western Railway

Design:
45' through plate girder

Description:
Through plate girder bridge over McCandless Cleghorn Ditch

Significance:

This small steel stringer bridge crosses Calmus Creek

Mason City, Cerro Gordo County, Iowa

Owner: City of Mason City

Status: Abandoned

Built 1947

by

Bethlehem Steel Company of Bethlehem, Pennsylvania

for

Minneapolis & St. Louis Railway

Design:
50' steel stringer

Description:
Steel stringer bridge over Calmus Creek

Significance:

This steel stringer and timber pile trestle bridge carries a former Chicago, Rock Island & Pacific Railroad (Rock Island) line over an unnamed creek east of Livermore

Livermore, Humboldt County, Iowa

Owner: Union Pacific Railroad

Status: In Use

Built c. 1955 using a span fabricated c. 1910

by

Unknown

for

Chicago, Rock Island & Pacific Railroad

Design:
22' steel stringer and timber pile trestle

Description:
Steel stringer and timber pile trestle bridge over unnamed creek

Significance:

This standard deck plate girder bridge crosses Beaver Creek next to Broad Street

Plymouth, Cerro Gordo County, Iowa

Owner: Canadian Pacific Kansas City Limited

Status: Open to Traffic

Built 1898

by

Wisconsin Bridge & Iron Company of North Milwaukee, Wisconsin

for

Chicago, Milwaukee & St. Paul Railway

Design:
65' Type B2 deck plate girder

Description:
Deck plate girder bridge over Beaver Creek

Significance:

This steel stringer bridge is the northern of two bridges carrying a former Great Northern Railway mainline over US Highway 75 northwest of Hull

Hull, Sioux County, Iowa

Owner: BNSF Railway

Status: In Use

Built 1931

by

Unknown

for

Great Northern Railway

Design:
1-32' and 2-26' steel stringers

Description:
Steel stringer bridge over US Highway 75

Significance:

This large Pratt through truss bridge carries a former Chicago, Milwaukee, St. Paul & Pacific Railroad (Milwaukee Road) mainline over the Rock River in Rock Valley

Rock Valley, Sioux County, Iowa

Owner: City of Rock Valley

Status: Open to Pedestrian Traffic

Built 1930 using spans fabricated 1897

by

Unknown

for

Chicago, Milwaukee, St. Paul & Pacific Railroad

Design:
2-140' Pratt through trusses and timber pile trestle

Description:
Pratt through truss bridge over Rock River

Significance: