This steel stringer bridge carries a former Chicago, Rock Island & Pacific Railroad mainline over an unnamed creek east of Nevada

Nevada, Story County, Iowa

Owner: Union Pacific Railroad

Status: In Use

Built c. 1940

by

Unknown

for

Chicago, Rock Island & Pacific Railroad

Design:
35' steel stringer

Description:
Steel stringer bridge over unnamed creek

Significance:

This stone arch bridge carries a former Chicago & North Western Railway line over Keigley Branch between Story City and Gilbert

Story City, Story County, Iowa

Owner: Union Pacific Railroad

Status: In Use

Built 1901

by

Unknown

for

Chicago & North Western Railway

Design:
20' stone arch

Description:
Stone arch bridge over Keigley Branch

Significance:

This deck plate girder bridge carries a former Chicago & North Western Railway mainline over 6th Street in Ames

Ames, Story County, Iowa

Owner: Union Pacific Railroad

Status: In Use

Built 1900

by

Unknown and Widell Company of Mankato, Minnesota

for

Chicago & North Western Railway

Design:
60' deck plate girder

Description:
Deck plate girder bridge over 6th Street

Significance:

This steel stringer bridge carries a former Chicago & North Western Railway mainline over County Road R38 (500th Avenue/Y Avenue) on the west edge of Ames

Ames, Story County, Iowa to Jordan, Boone County, Iowa

Owner: Union Pacific Railroad

Status: In Use

Built 1941

by

Des Moines Steel Company of Des Moines, Iowa; Widell Company of Mankato, Minnesota and Unknown

for

Chicago & North Western Railway

Design:
45' steel stringer

Description:
Steel stringer bridge over County Road R38 (500th Avenue/Y Avenue)

Significance:

This steel stringer bridge once carried a Fort Dodge, Des Moines & Southern railroad branch line over Ioway Creek (formerly Squaw Creek) in Ames

Ames, Story County, Iowa

Owner: Union Pacific Railroad

Status: Removed but not replaced

Built 1940

by

Pittsburgh-Des Moines Steel Company of Des Moines, Iowa

for

Fort Dodge, Des Moines & Southern Railroad

Design:
4-50' and 1-42' steel stringers

Description:
Lost steel stringer bridge over Ioway Creek (formerly Squaw Creek)

Significance:

This large deck plate girder bridge carries a former Chicago & North Western Railway mainline over the South Skunk River on the east side of Ames

Ames, Story County, Iowa

Owner: Union Pacific Railroad

Status: In Use

Built 1900 and 1949

by

Wisconsin Bridge & Iron Company of North Milwaukee, Wisconsin; American Bridge Company of New York and Widell Company of Mankato, Minnesota

for

Chicago & North Western Railway

Design:
1-110', 1-75' deck plate girder and 1-20' and 1-18' steel stringers

Description:
Deck plate girder bridge over South Skunk River

Significance:

This massive stone arch bridge carries a former Chicago & North Western Railway mainline over West Indian Creek on the west side of Nevada

Nevada, Story County, Iowa

Owner: Union Pacific Railroad

Status: In Use

Built 1890 and 1900

by

Morris & Foley of St. Paul, Minnesota and Widell Company of Mankato, Minnesota

for

Chicago & North Western Railway

Design:
40' stone arch

Description:
Stone arch bridge over West Indian Creek

Significance:

This stone arch bridge carries a former Chicago & North Western Railway mainline over Clear Creek on the northwest side of the Iowa State University campus in Ames

Ames, Story County, Iowa

Owner: Union Pacific Railroad

Status: In Use

Built 1882 and 1901

by

Unknown and Widell Company of Mankato, Minnesota

for

Chicago & North Western Railway

Design:
16' stone arch

Description:
Stone arch bridge over Clear Creek

Significance:

This through and deck plate girder bridge carries a former Chicago & North Western Railway mainline over East Indian Creek and Union Pacific Railroad (Former Chicago, Rock Island & Pacific Railway) east of Nevada

Nevada, Story County, Iowa

Owner: Union Pacific Railroad

Status: In Use

Built 1900 and 1902

by

American Bridge Company of New York; Widell Company of Mankato, Minnesota and Unknown

for

Chicago & North Western Railway

Design:
68' deck plate girder and 68' through plate girder

Description:
Through and deck plate girder bridge over East Indian Creek and Union Pacific Railroad (Former Chicago, Rock Island & Pacific Railway)

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: