This Warren pony truss bridge carries a former Chicago, Milwaukee, St. Paul & Pacific Railroad (Milwaukee Road) line across the Big Sioux River at Hudson

Hudson, Lincoln County, South Dakota to Rock Valley, Sioux County, Iowa

Owner: D&I Railroad

Status: In Use

Built 1932

by

Lakeside Bridge Company of North Milwaukee, Wisconsin

for

Chicago, Milwaukee, St. Paul & Pacific Railroad

Design:
138' Warren pony truss and 30-16' steel stringers

Description:
Warren pony truss bridge over Big Sioux River

Significance:

This Pratt pony truss bridge carries a former Chicago, Milwaukee, St. Paul & Pacific Railroad (Milwaukee Road) line across the Big Sioux River north of Hudson

Hudson, Lincoln County, South Dakota to Rock Valley, Sioux County, Iowa

Owner: D&I Railroad

Status: In Use

Built 1932 using spans fabricated 1900 and 1904

by

Lassig Bridge & Iron Works of Chicago and Wisconsin Bridge & Iron Company of North Milwaukee, Wisconsin

for

Chicago, Milwaukee & St. Paul Railway

Design:
123' Pratt pony truss, 50' deck plate girder, 43-14' steel stringers and timber pile trestle

Description:
Pratt pony truss bridge over Big Sioux River

Significance:

This Warren pony truss bridge carries a former Chicago, Milwaukee, St. Paul & Pacific Railroad (Milwaukee Road) line across the Big Sioux River at Fairview

Fairview, Lincoln County, South Dakota to Rock Valley, Sioux County, Iowa

Owner: D&I Railroad

Status: In Use

Built 1911 and 1932

by

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

for

Chicago, Milwaukee, St. Paul & Pacific Railroad

Design:
135' Warren pony truss, 2-65' through plate girders and 8-16' and 13-14' steel stringers

Description:
Warren pony truss bridge over Big Sioux River

Significance: