This unusual modified Warren through truss bridge is the northern 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 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 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 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 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: