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 small deck plate girder bridge once carried a Chicago, Rock Island & Pacific Railroad (Rock Island) mainline over Johnson Creek along County Road F90 east of Booneville

Booneville, Dallas County, Iowa

Owner: Iowa Interstate Railroad

Status: Filled In

Built 1902

by

American Bridge Company of New York

for

Chicago, Rock Island & Pacific Railway

Design:
30' deck plate girder

Description:
Deck plate girder bridge over Johnson Creek

Significance:

This deck plate girder bridge carries a former Chicago, Rock Island & Pacific Railroad (Rock Island) mainline over the South Fork Middle River between Casey and Adair

Casey, Guthrie County, Iowa

Owner: Iowa Interstate Railroad

Status: In Use

Built 1899

by

Unknown

for

Chicago, Rock Island & Pacific Railway

Design:
2-57' deck plate girders

Description:
Deck plate girder bridge over South Fork Middle 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 deck plate girder bridge carries a former Chicago & North Western Railway line over the West Fork Des Moines River west of Bradgate

Bradgate, Humboldt County, Iowa

Owner: Humboldt County Conservation Board

Status: Open to Pedestrian Traffic

Built 1902, 1917 and c. 1920

by

American Bridge Company of New York and Unknown

for

Chicago & North Western Railway

Design:
5-70' deck plate girders

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

Significance:

This concrete slab bridge carries a former Chicago, Milwaukee, St. Paul & Pacific Railroad (Milwaukee Road) mainline over 597th Avenue east of Cambridge

Cambridge, Story County, Iowa

Owner: Story County Conservation Board

Status: Open to Pedestrian Traffic

Built 1913 and 1946

by

Unknown

for

Chicago, Milwaukee & St. Paul Railway

Design:
20' concrete slab

Description:
Concrete slab bridge over 597th Avenue

Significance:

This stone arch bridge carries an abandoned Chicago & North Western Railway line over Mill Creek in Moingona

Moingona, Boone County, Iowa

Owner: United States of America

Status: Abandoned

Built 1881

by

Unknown

for

Chicago & North Western Railway

Design:
12' stone arch

Description:
Stone arch bridge over Mill Creek

Significance:

This stone arch culvert and concrete box culvert carries a former Chicago & North Western Railway mainline over an unnamed creek in Carroll

Carroll, Carroll County, Iowa

Owner: Union Pacific Railroad

Status: In Use

Built 1889, 1896, 1910 and c. 1950

by

Unknown

for

Chicago & North Western Railway

Design:
10' stone arch culvert (south tracks), 12' concrete encased beam (middle tracks), 12' concrete box culvert (north tracks)

Description:
Stone arch and concrete box culvert over unnamed creek

Significance:

This small deck plate girder and steel stringer bridge carries a former Chicago & North Western Railway line over an unnamed creek southeast of Renwick

Renwick, Wright County, Iowa

Owner: Union Pacific Railroad

Status: In Use

Built 1916

by

Chicago Bridge & Iron Works of Chicago, Illinois and Unknown

for

Chicago & North Western Railway

Design:
28' deck plate girder and 20' steel stringer

Description:
Deck plate girder and steel stringer bridge over unnamed creek

Significance:

This through plate girder bridge carries a former Chicago & North Western Railway line over a former Minneapolis & St. Louis Railway line in Humboldt

Humboldt, Humboldt County, Iowa

Owner: Humboldt County Conservation Board

Status: Open to Pedestrian Traffic

Built 1917

by

American Bridge Company of New York and Unknown

for

Chicago & North Western Railway

Design:
76' through plate girder

Description:
Through plate girder bridge over Three Rivers Trail (former Minneapolis & St. Louis Railway)

Significance: