This large deck plate girder bridge carries a former Chicago Great Western Railway mainline over the South Skunk River between Santiago and Valeria

Santiago, Polk County, Iowa

Owner: Polk County Conservation Board

Status: Open to Pedestrian Traffic

Built 1921 and 1928

by

American Bridge Company of New York and Unknown

for

Chicago Great Western Railway

Design:
4-70' deck plate girders and timber pile trestle

Description:
Deck plate girder bridge over South Skunk River

Significance:

This iconic through truss bridge carries the former Des Moines Union Railway mainline across the Des Moines River between Court Avenue and Vine Street in Des Moines

Des Moines, Polk County, Iowa

Owner: City of Des Moines

Status: Open to Pedestrian Traffic

Built 1891, 1905 and 1945 and 2006

by

Detroit Bridge & Iron Works of Detroit, Michigan; Des Moines Bridge & Iron Works of Des Moines, Iowa; Stupp Brothers Bridge & Iron Company of St. Louis, Missouri and others

for

Des Moines Union Railway

Design:
2-152' Pratt through trusses, 1-78' through plate girder, 1-68' deck plate girder, 1-25' steel stringer and 1-45' steel stringer

Description:
Pratt through truss bridge over Des Moines River

Significance:

This steel stringer and timber pile trestle bridge carries a former Chicago Great Western Railway mainline over Fourmile Creek in Berwick

Berwick, Polk County, Iowa

Owner: Polk County Conservation Board

Status: Open to Pedestrian Traffic

Built c. 1960

by

Unknown

for

Chicago Great Western Railway

Design:
50' steel stringer and timber pile trestle

Description:
Steel stringer and timber pile trestle bridge over Fourmile Creek

Significance:

This stone arch culvert carries a former Chicago, Rock Island & Pacific Railroad (Rock Island) mainline over Little Fourmile Creek near Lions Park in Altoona

Altoona, Polk County, Iowa

Owner: Iowa Interstate Railroad

Status: In Use

Built c. 1875

by

Unknown

for

Chicago, Rock Island & Pacific Railway

Design:
10' stone arch culvert

Description:
Stone arch culvert over Little Fourmile Creek

Significance:

This unique through plate girder bridge carries a former Chicago, Milwaukee, St. Paul & Pacific Railroad (Milwaukee Road) branch line over Walnut Creek at Campbell Park in Clive

Clive, Polk County, Iowa

Owner: City of Clive

Status: Open to Pedestrian Traffic

Built 1917 using a span fabricated 1889

by

Lassig Bridge & Iron Works of Chicago, Illinois

for

Chicago, Milwaukee & St. Paul Railway

Design:
65' through plate girder and timber pile trestle

Description:
Through plate girder bridge over Walnut Creek

Significance:

This small concrete arch culvert carries a former Chicago, Rock Island & Pacific Railroad (Rock Island) secondary line over an unnamed creek west of Altoona

Altoona, Polk County, Iowa

Owner: Iowa Department of Transportation

Status: Abandoned

Built 1896

by

Unknown

for

Chicago, Rock Island & Pacific Railway

Design:
10' concrete arch culvert

Description:
Concrete arch culvert over unnamed creek

Significance:

This small stone arch culvert carries a former Chicago Great Western Railway mainline over an unnamed creek near Northeast 29th Street southwest of Berwick

Berwick, Polk County, Iowa

Owner: Polk County Conservation Board

Status: Abandoned

Built c. 1900

by

Unknown

for

Chicago Great Western Railway

Design:
4' stone arch culvert

Description:
Stone arch culvert over unnamed creek

Significance:

This deck plate girder bridge is the northern of two similar bridges carrying a former Chicago, Rock Island & Pacific Railroad (Rock Island) line over Fourmile Creek on the east side of Des Moines

Des Moines, Polk County, Iowa

Owner: Iowa Interstate Railroad

Status: In Use

Built 1902 and 1912

by

American Bridge Company of New York and Unknown

for

Chicago, Rock Island & Pacific Railway

Design:
5-44' deck plate girders

Description:
Deck plate girder bridge over Fourmile Creek

Significance:

This deck plate girder bridge is the southern of two similar bridges carrying a former Chicago, Rock Island & Pacific Railroad (Rock Island) line over Fourmile Creek on the east side of Des Moines

Des Moines, Polk County, Iowa

Owner: Iowa Interstate Railroad

Status: Abandoned

Built c. 1905

by

American Bridge Company of New York and Unknown

for

Chicago, Rock Island & Pacific Railway

Design:
5-44' deck plate girders

Description:
Deck plate girder bridge over Fourmile Creek

Significance:

This Pratt pony truss bridge carries a former Chicago, Milwaukee, St. Paul & Pacific Railroad (Milwaukee Road) branch line over Walnut Creek in Clive

Clive, Polk County, Iowa

Owner: Norfolk Southern Railway

Status: Abandoned

Built 1902 and 1943

by

Unknown and Thorgerson & Ericksen Company of Chicago, Illinois

for

Chicago, Milwaukee & St. Paul Railway

Design:
104' Pratt pony truss and timber pile trestle

Description:
Pratt pony truss bridge over Walnut Creek

Significance: