This small steel stringer bridge carries the former Chicago, St. Paul, Minneapolis & Omaha Railway (Omaha Road) mainline over an unnamed creek alongside 3rd Avenue south of Alton

Alton, Sioux County, Iowa

Owner: Union Pacific Railroad

Status: In Use

Built 1910

by

Minneapolis Steel & Machinery Company of Minneapolis, Minnesota and James McClure of St. Paul, Minnesota

for

Chicago, St. Paul, Minneapolis & Omaha Railway

Design:
20' steel stringer

Description:
Steel stringer bridge over unnamed creek

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:

This brick lined concrete arch bridge carries a former Chicago, Rock Island & Pacific Railway line over the West Branch Little Sioux River west of Lake Park

Lake Park, Dickinson County, Iowa

Owner: Dickinson County

Status: Open to Pedestrian Traffic

Built 1900

by

Burlington, Cedar Rapids & Northern Railway

Design:
21' brick lined concrete arch

Description:
Brick lined concrete arch bridge arch bridge over West Branch Little Sioux River

Significance:

This deck plate girder bridge carries the former Chicago, St. Paul, Minneapolis & Omaha Railway (Omaha Road) mainline over an unnamed creek alongside Iowa Highway 60 south of Carnes

Carnes, Sioux County, Iowa

Owner: Union Pacific Railroad

Status: In Use

Built 1909

by

Minneapolis Steel & Machinery Company of Minneapolis, Minnesota

for

Chicago, St. Paul, Minneapolis & Omaha Railway

Design:
60' deck plate girder

Description:
Deck plate girder bridge over unnamed creek

Significance:

This Warren deck truss bridge is one of several different truss designs built by Phoenix Bridge Company for the Iowa Central Railroad

Mason City, Cerro Gordo County, Iowa

Owner: Cerro Gordo County

Status: Abandoned

Built 1902

by

Phoenix Bridge Company of Phoenixville, Pennsylvania

for

Iowa Central Railroad

Design:
130' riveted Warren deck truss

Description:
Warren deck truss bridge over Winnebago River

Significance:

This steel stringer bridge carries a former Great Northern Railway mainline over US Highway 18 west of Hull

Hull, Sioux County, Iowa

Owner: BNSF Railway

Status: In Use

Built 1939

by

Unknown and Bonesteel & Hyde of Watertown, South Dakota

for

Great Northern Railway

Design:
3-40' steel stringers

Description:
Steel stringer bridge over US Highway 18

Significance:

This attractive Pratt through truss bridge carries a former Minneapolis & St. Louis Railway line over the East Fork Des Moines River in Frank Gotch State Park south of Humboldt

Humboldt, Humboldt County, Iowa

Owner: Humboldt County Conservation Board

Status: Open to Pedestrian Traffic

Built 1901

by

Detroit Bridge & Iron Works of Detroit, Michigan and Unknown

for

Minneapolis & St. Louis Railway

Design:
159' Pratt through truss and timber pile trestle

Description:
Pratt through truss bridge over East Fork Des Moines River

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 standard steel stringer bridge carries a former Chicago & North Western Railway line over Oak Street in Algona

Algona, Kossuth County, Iowa

Owner: Union Pacific Railroad

Status: In Use

Built 1911

by

American Bridge Company of New York and Unknown

for

Chicago & North Western Railway

Design:
24' steel stringer

Description:
Steel stringer bridge over Oak Street

Significance:

This deck plate girder bridge carries the former Chicago, St. Paul, Minneapolis & Omaha Railway (Omaha Road) mainline over an unnamed creek alongside Iowa Highway 60 between Seney and Carnes

Seney, Plymouth County, Iowa

Owner: Union Pacific Railroad

Status: In Use

Built 1913

by

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

for

Chicago, St. Paul, Minneapolis & Omaha Railway

Design:
50' deck plate girder

Description:
Deck plate girder bridge over unnamed creek

Significance: