This small concrete arch culvert carries a former Chicago, Milwaukee, St. Paul & Pacific Railroad (Milwaukee Road) mainline over an unnamed ditch on the east side of Madrid

Madrid, Boone County, Iowa

Owner: Boone County Conservation Board

Status: Open to Pedestrian Traffic

Built 1912

by

Chicago, Milwaukee & St. Paul Railway

Design:
10' concrete arch culvert

Description:
Concrete arch culvert over unnamed ditch

Significance:

This trough floor steel stringer bridge carries a former Chicago & North Western Railway mainline over Linn Street in Boone

Boone, Boone County, Iowa

Owner: Union Pacific Railroad

Status: In Use

Built 1910

by

American Bridge Company of New York and Unknown

for

Chicago & North Western Railway

Design:
35' trough floor steel stringer

Description:
Trough floor steel stringer bridge over Linn Street

Significance:

This historic double intersection Warren pony truss bridge carries J Avenue over a former Chicago & North Western Railway mainline east of Ogden

Ogden, Boone County, Iowa

Owner: Union Pacific Railroad

Status: Open to Automobile Traffic

Built 1900 using a span fabricated c. 1882

by

Unknown and Widell Company of Mankato, Minnesota

for

Chicago & North Western Railway

Design:
75' double intersection Warren pony truss and timber pile trestle

Description:
Double intersection Warren pony truss bridge over Union Pacific Railroad

Significance:

This stone arch bridge carries a former Chicago & North Western Railway mainline over an unnamed tributary of South Onion Creek near Jordan

Jordan, Boone County, Iowa

Owner: Union Pacific Railroad

Status: In Use

Built 1899

by

Widell Company of Mankato, Minnesota

for

Chicago & North Western Railway

Design:
15' stone arch

Description:
Stone arch bridge over tributary of South Onion Creek

Significance:

This tall deck plate girder viaduct carries a former Fort Dodge, Des Moines & Southern Railroad line over Bass Point Creek north of Boone

Boone, Boone County, Iowa

Owner: Boone and Scenic Valley Railroad

Status: In Use

Built 1913

by

American Bridge Company of New York and Albert W. Merrick of Boone, Iowa

for

Fort Dodge, Des Moines & Southern Railway

Design:
6-80', 1-48' and 8-32' deck plate girders

Description:
Deck plate girder viaduct over Bass Point Creek

Significance:

This modern deck plate girder viaduct carries a Union Pacific Railroad line over the Des Moines River parallel to the original Kate Shelley Bridge between Boone and Ogden

Boone, Boone County, Iowa to Ogden, Boone County, Iowa

Owner: Union Pacific Railroad

Status: In Use

Built 2006-09 using spans fabricated 1973

by

Bennett Industries of Peotone, Illinois; Paxton-Vierling Steel Company of Omaha, Nebraska and OCCI, Inc. of Fulton, Missouri

for

Union Pacific Railroad

Design:
20-110' and 6-70' deck plate girders and 6-30' and 1-13' concrete modular girders

Description:
Deck plate girder viaduct over Des Moines River and Juneberry Road

Significance:

This large deck plate girder bridge carries a former Fort Dodge, Des Moines & Southern Railroad line over the Des Moines River south of Fraser

Fraser, Boone County, Iowa

Owner: Boone and Scenic Valley Railroad

Status: In Use

Built 1915 and 1923

by

American Bridge Company of New York; Ferro Construction Company of Chicago, Illinois and Unknown

for

Fort Dodge, Des Moines & Southern Railway

Design:
7-96' and 1-60' deck plate girders

Description:
Deck plate girder bridge over Des Moines River

Significance:

This stone arch bridge carries a former Chicago & North Western Railway mainline over Polecat Creek west of Boone

Boone, Boone County, Iowa

Owner: Union Pacific Railroad

Status: In Use

Built 1899

by

Widell Company of Mankato, Minnesota

for

Chicago & North Western Railway

Design:
12' stone arch

Description:
Stone arch bridge over Polecat Creek

Significance:

This stone arch bridge carries a former Chicago & North Western Railway mainline over East Beaver Creek on the west side of Ogden

Ogden, Boone County, Iowa

Owner: Union Pacific Railroad

Status: In Use

Built 1900

by

Widell Company of Mankato, Minnesota

for

Chicago & North Western Railway

Design:
20' stone arch

Description:
Stone arch bridge over East Beaver Creek

Significance:

This stone arch bridge carries an abandoned Chicago & North Western Railway line over Mill Creek in Moingona

Moingona, Boone County, Iowa

Owner: United States of America

Status: Abandoned

Built 1881

by

Unknown

for

Chicago & North Western Railway

Design:
12' stone arch

Description:
Stone arch bridge over Mill Creek

Significance: