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:

This small stone arch culvert carries a former Chicago & North Western Railway line over an unnamed creek on the south side of Dakota City

Dakota City, Humboldt County, Iowa

Owner: Humboldt County Conservation Board

Status: Open to Pedestrian Traffic

Built 1882

by

Unknown

for

Chicago & North Western Railway

Design:
5' stone arch culvert

Description:
Stone arch culvert over unnamed creek

Significance:

This stone arch culvert carries a former Chicago & North Western Railway line over an unnamed creek on the north side of Humboldt

Humboldt, Humboldt County, Iowa

Owner: Humboldt County Conservation Board

Status: Open to Pedestrian Traffic

Built 1902

by

Unknown

for

Chicago & North Western Railway

Design:
10' stone arch culvert

Description:
Stone arch culvert over unnamed 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 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 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 deck plate girder bridge carries a former Chicago, Rock Island & Pacific Railroad (Rock Island) line over the East Fork Des Moines River southeast of Livermore

Livermore, Humboldt County, Iowa

Owner: Union Pacific Railroad

Status: In Use

Built 1900; Rebuilt 1972 using spans fabricated c. 1900

by

Unknown

for

Burlington, Cedar Rapids & Northern Railway

Design:
1-81', 1-60', 1-50' and 1-36' deck plate girders and timber pile trestle

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

Significance:

This through plate girder bridge carries a former Chicago & North Western Railway line over 1st Avenue in 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:
50' through plate girder

Description:
Through plate girder bridge over 1st Avenue

Significance:

This steel stringer and timber pile trestle bridge carries a former Chicago & North Western Railway line over Iowa Highway 3 in Humboldt

Humboldt, Humboldt County, Iowa

Owner: Humboldt County Conservation Board

Status: Open to Pedestrian Traffic

Built 1956

by

Unknown

for

Chicago & North Western Railway

Design:
45' steel stringer and timber pile trestle

Description:
Steel stringer and timber pile trestle bridge over Iowa Highway 3

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: