This steel stringer and timber pile trestle bridge carries a former Chicago Great Western Railway mainline over Polk County Ditch #38 between Santiago and Valeria

Santiago, Polk County, Iowa

Owner: Polk County Conservation Board

Status: Open to Pedestrian Traffic

Built c. 1940

by

Unknown

for

Chicago Great Western Railway

Design:
30' steel stringer and timber pile trestle

Description:
Steel stringer and timber pile trestle bridge over Polk County Ditch #38

Significance:

This standard concrete box culvert carries a former Chicago & North Western Railway secondary line over an unnamed creek alongside Northwest 58th Street south of Sheldahl

Sheldahl, Polk County, Iowa

Owner: Polk County Conservation Board

Status: Open to Pedestrian Traffic

Built 1914

by

Cleary-White Construction Company of Chicago, Illinois

for

Chicago & North Western Railway

Design:
6'x5' concrete box culvert

Description:
Concrete box culvert over unnamed creek

Significance:

This small stone arch culvert carries a former Chicago, Rock Island & Pacific Railroad (Rock Island) mainline over an unnamed creek near Northeast 27th Avenue southwest of Altoona

Altoona, Polk County, Iowa

Owner: Iowa Interstate Railroad

Status: In Use

Built c. 1875

by

Unknown

for

Chicago, Rock Island & Pacific Railway

Design:
6' stone arch culvert

Description:
Stone 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 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 small stone arch culvert carries a former Chicago Great Western Railway mainline and Southwest 42nd Street over Frink Creek on the south side of Des Moines

Des Moines, Polk County, Iowa

Owner: Polk County Conservation Board

Status: Open to Pedestrian Traffic

Built c. 1900 and 1972

by

Unknown

for

Chicago Great Western Railway

Design:
10' stone arch culvert

Description:
Stone arch culvert over Frink Creek

Significance:

This Warren through truss bridge once carried a Chicago, Rock Island & Pacific Railroad (Rock Island) mainline over Walnut Creek near Ashworth Park in Des Moines

Des Moines, Polk County, Iowa

Owner: Iowa Interstate Railroad

Status: Replaced by a new bridge; West span In Use

Built 1901 and 1908

by

Unknown

for

Chicago, Rock Island & Pacific Railway and Minneapolis & St. Louis Railway

Design:
113' Warren through truss and 44' deck plate girder

Description:
Warren through truss bridge over Walnut Creek

Significance:

This small stone arch culvert carries a former Chicago Great Western Railway mainline over an unnamed creek near Northeast 62nd Avenue east of Berwick

Berwick, Polk County, Iowa

Owner: Polk County Conservation Board

Status: Open to Pedestrian Traffic

Built c. 1900

by

Unknown

for

Chicago Great Western Railway

Design:
4' stone arch culvert

Description:
Stone arch culvert over unnamed creek

Significance:

This subdivided Warren through truss bridge carries a former Chicago, Rock Island & Pacific Railroad (Rock Island) mainline over the Des Moines River in Des Moines

Des Moines, Polk County, Iowa

Owner: Union Pacific Railroad

Status: In Use

Built 1920

by

American Bridge Company of New York and Unknown

for

Chicago, Rock Island & Pacific Railway

Design:
3-153' subdivided Warren through trusses

Description:
Subdivided Warren through truss bridge over Des Moines River

Significance:

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: