This steel stringer and timber pile trestle bridge carries a former Des Moines & Central Iowa Railway line over Iowa Highway 415 (2nd Avenue) and an unnamed creek on the north side of Des Moines

Des Moines, Polk County, Iowa

Owner: Union Pacific Railroad

Status: In Use

Built 1942

by

Unknown

for

Des Moines & Central Iowa Railway

Design:
2-33' steel stringers and timber pile trestle

Description:
Steel stringer and timber pile trestle bridge over Iowa Highway 415 (2nd Avenue) and 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 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 steel stringer bridge carries a former Chicago & North Western Railway secondary line over a farm road east of Polk City

Polk City, Polk County, Iowa

Owner: Polk County Conservation Board

Status: Open to Pedestrian Traffic

Built 1914

by

Unknown and Cleary-White Construction Company of Chicago, Illinois

for

Chicago & North Western Railway

Design:
20' steel stringer

Description:
Steel stringer bridge over farm road

Significance:

This through plate girder bridge carries a former Chicago, Rock Island & Pacific Railroad (Rock Island) mainline over the Des Moines River at Vine Street in Des Moines

Des Moines, Polk County, Iowa

Owner: Iowa Interstate Railroad

Status: In Use

Built 1904

by

American Bridge Company of New York; Bates & Rogers Construction Company of Chicago, Illinois and Unknown

for

Chicago, Rock Island & Pacific Railway

Design:
8-77' through plate girders

Description:
Through plate girder 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 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 abandoned Pratt pony truss bridge carries a former Chicago, Milwaukee, St. Paul & Pacific Railroad (Milwaukee Road) branch line over Walnut Creek near Grand Avenue and 63rd Street in Des Moines

Des Moines, Polk County, Iowa

Owner: Norfolk Southern Railway

Status: Abandoned

Built 1917 using a span fabricated 1897

by

Wisconsin Bridge & Iron Company of North Milwaukee, Wisconsin

for

Chicago, Milwaukee & St. Paul Railway

Design:
106' Pratt pony truss and timber pile trestle

Description:
Pratt pony truss bridge over Walnut Creek

Significance:

This deck plate girder and steel stringer bridge was constructed of spare parts to carry a Union Pacific Railroad spur over the Raccoon River at Water Works Park

Des Moines, Polk County, Iowa

Owner: Union Pacific Railroad

Status: In Use

Built 1919; approaches rebuilt 2004 using spans fabricated c. 1930

by

Wisconsin Bridge & Iron Company of North Milwaukee, Wisconsin and Unknown

for

Minneapolis & St. Louis Railway and Union Pacific Railroad

Design:
100' deck plate girder and seven assorted steel stringer spans

Description:
Deck plate girder and steel stringer bridge over Raccoon River

Significance: