This large deck truss and deck plate girder bridge carries the former Chicago & North Western Railway mainline over Lake Wisconsin (Wisconsin River) in Merrimac and has seen numerous alterations over the years

Merrimac, Sauk County, Wisconsin to Okee, Columbia County, Wisconsin

Owner: State of Wisconsin (Operated by Wisconsin & Southern Railroad)

Status: In Use

Built 1895 and 1930; reconstructed 1930 and 2023-24

by

Lassig Bridge & Iron Works of Chicago, Illinois and Unknown

for

Chicago & North Western Railway

Design:
Double intersection warren deck truss and deck plate girder

Description:
Double intersection Warren deck truss and deck plate girder bridge over Lake Wisconsin (Wisconsin River)

Significance:

This large deck plate girder and steel stringer bridge carries the former Chicago & North Western Railway mainline across the Rock River in Jefferson

Jefferson, Jefferson County, Wisconsin

Owner: Union Pacific Railroad

Status: In Use

Built 1930 and c. 1950

by

Unknown and Jutton-Kelly Company of Milwaukee, Wisconsin

for

Chicago & North Western Railway

Design:
4-50' and 1-38' deck plate girders and 6-26' steel stringers

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

Significance:

This deck plate girder bridge carries a former joint Chicago, Milwaukee, St. Paul & Pacific Railroad (Milwaukee Road) and Chicago & North Western Railway line across US Highway 51 (Parker Drive) in Janesville

Janesville, Rock County, Wisconsin

Owner: State of Wisconsin (Operated by Wisconsin & Southern Railroad)

Status: In Use

Built 1941

by

American Bridge Company of New York and Jutton-Kelly Company of Milwaukee, Wisconsin

for

Chicago, Milwaukee & St. Paul Railway and Chicago & North Western Railway

Design:
100' deck plate girder

Description:
Deck plate girder bridge over US Highway 51 (Parker Drive)

Significance: