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:

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 deck plate girder bridge carries a former Chicago, Rock Island & Pacific Railroad (Rock Island) secondary line over an unnamed tributary of Camp Creek southwest of Mitchellville

Mitchellville, Polk County, Iowa

Owner: Iowa Interstate Railroad

Status: In Use

Built c. 1955 using spans fabricated 1903 and 1907

by

American Bridge Company of New York

for

Chicago, Rock Island & Pacific Railway

Design:
1-68' and 2-44' deck plate girders and timber pile trestle

Description:
Deck plate girder bridge over unnamed tributary of Camp 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 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 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 large through truss and steel stringer bridge carries a modern realignment of a former Wabash Railroad branch line over the Des Moines River alongside Iowa Highway 316 south of Runnells

Runnells, Polk County, Iowa

Owner: Norfolk Southern Railway

Status: In Use

Built 1964

by

Unknown and L.G. Barcus Company of Kansas City, Missouri

for

Wabash Railroad and Chicago, Burlington & Quincy Railroad

Design:
3-188' Warren through trusses and 36-43' steel stringers

Description:
Warren through truss bridge over Des Moines 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 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 once carried a former Des Moines & Central Iowa Railway line over Beaver Creek north of Interstate 35/80 in Johnston

Johnston, Polk County, Iowa

Owner: City of Johnston

Status: Replaced by a new bridge

Built c. 1960 using spans fabricated c. 1910

by

Unknown

for

Des Moines & Central Iowa Railway

Design:
2-36' deck plate girders and timber pile trestle

Description:
Deck plate girder bridge over Beaver Creek

Significance: