This unusual Schaub variant through truss bridge carries a former Minneapolis & St. Louis Railway mainline over the North Skunk River alongside Iowa Highway 146 north of New Sharon

New Sharon, Mahaska County, Iowa to Searsboro, Poweshiek County, Iowa

Owner: Union Pacific Railroad

Status: In Use

Built 1902

by

Phoenix Bridge Company of Phoenixville, Pennsylvania and George Cook of Minneapolis, Minnesota

for

Iowa Central Railway

Design:
138' Schaub variant through truss and timber pile trestle

Description:
Schaub variant through truss bridge over North Skunk River

Significance:

This through plate girder bridge carries a former Minneapolis & St. Louis Railway mainline over US Highway 63 (Market Street) in Oskaloosa

Oskaloosa, Mahaska County, Iowa

Owner: Union Pacific Railroad

Status: In Use

Built 1954

by

Unknown and Amos Melberg Company of Cedar Rapids, Iowa

for

Minneapolis & St. Louis Railway

Design:
3-40' and 1-37' through plate girders

Description:
Through plate girder bridge over US Highway 63 (Market Street)

Significance:

This through plate girder bridge carries a former Chicago, Rock Island & Pacific Railroad (Rock Island) secondary line over Muchakinock Creek north of Eddyville

Eddyville, Mahaska County, Iowa

Owner: Union Pacific Railroad

Status: In Use

Built c. 1930

by

Unknown

for

Chicago, Rock Island & Pacific Railway

Design:
112' through plate girder

Description:
Through plate girder bridge over Muchakinock Creek

Significance:

This unusual modified Warren deck truss bridge carries a former Minneapolis & St. Louis Railway mainline over the South Skunk River north of Oskaloosa

Oskaloosa, Mahaska County, Iowa

Owner: Union Pacific Railroad

Status: In Use

Built 1901

by

Phoenix Bridge Company of Phoenixville, Pennsylvania and George Cook of Minneapolis, Minnesota

for

Iowa Central Railway

Design:
140' modified Warren deck truss and timber pile trestle

Description:
Modified Warren deck truss bridge over Skunk River

Significance:

This concrete arch bridge carries a former Minneapolis & St. Louis Railway mainline over a former alignment of 135th Street in New Sharon

New Sharon, Mahaska County, Iowa

Owner: Union Pacific Railroad

Status: In Use

Built 1902

by

George Cook of Minneapolis, Minnesota

for

Iowa Central Railway

Design:
14' concrete arch

Description:
Concrete arch bridge over former alignment of 135th Street

Significance:

This small concrete arch bridge carries a former Chicago, Rock Island & Pacific Railroad (Rock Island) branch line over an unnamed creek near Suffolk Road west of Oskaloosa

Oskaloosa, Mahaska County, Iowa

Owner: Private Owner

Status: Abandoned

Built c. 1900

by

Unknown

for

Chicago, Rock Island & Pacific Railway

Design:
12' concrete arch

Description:
Concrete arch bridge over unnamed creek

Significance:

This steel stringer and timber pile trestle bridge carries a former Minneapolis & St. Louis Railway mainline over 160th Street south of New Sharon

New Sharon, Mahaska County, Iowa

Owner: Union Pacific Railroad

Status: In Use

Built c. 1940

by

Unknown

for

Minneapolis & St. Louis Railway

Design:
20' steel stringer and timber pile trestle

Description:
Steel stringer and timber pile trestle bridge over 160th Street

Significance:

This steel stringer and timber pile trestle bridge carries a former Minneapolis & St. Louis Railway mainline over an abandoned Chicago, Burlington & Quincy Railroad branch line in Oskaloosa

Oskaloosa, Mahaska County, Iowa

Owner: Union Pacific Railroad

Status: In Use

Built c. 1910

by

Unknown

for

Chicago, Burlington & Quincy Railroad and Minneapolis & St. Louis Railway

Design:
23' steel stringer and timber pile trestle

Description:
Steel stringer and timber pile trestle bridge over abandoned Chicago, Burlington & Quincy Railroad

Significance:

This unusual modified Warren through truss bridge is the southern of two identical structures carrying a former Minneapolis & St. Louis Railway branch line over Muchakinock Creek south of Oskaloosa

Oskaloosa, Mahaska County, Iowa

Owner: Union Pacific Railroad

Status: In Use

Built 1904

by

Phoenix Bridge Company of Phoenixville, Pennsylvania and George Cook of Minneapolis, Minnesota

for

Iowa Central Railway

Design:
104' modified Warren through truss

Description:
Modified Warren through truss bridge over Muchakinock Creek

Significance:

This through plate girder bridge carries a former Minneapolis & St. Louis Railway line over a pedestrian trail (former Chicago, Rock Island & Pacific Railway) near H Street in Oskaloosa

Oskaloosa, Mahaska County, Iowa

Owner: Union Pacific Railroad

Status: In Use

Built 1896

by

Unknown

for

Chicago, Rock Island & Pacific Railway and Iowa Central Railway

Design:
70' through plate girder

Description:
Through plate girder bridge over pedestrian trail (former Chicago, Rock Island & Pacific Railway)

Significance: