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 Pratt through truss bridge carries a former Chicago, Milwaukee, St. Paul & Pacific Railroad (Milwaukee Road) secondary line over the Big Sioux River north of Hawarden

Hawarden, Sioux County, Iowa to Hudson, Lincoln County, South Dakota

Owner: D&I Railroad

Status: In Use

Built 1900

by

Unknown

for

Chicago, Milwaukee & St. Paul Railway

Design:
138' Pratt through truss and 33-13' steel stringers

Description:
Pratt through truss bridge over Big Sioux River

Significance: