This Pratt through truss bridge once crossed the Big Sioux River in Canton

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

Owner: D&I Railroad

Status: Destroyed by Flooding

Built 1917 and 1931 using secondhand spans fabricated 1909 and 1898

by

Unknown

for

Chicago, Milwaukee & St. Paul Railway

Design:
136' Pratt through truss, 72' deck plate girder and trestle

Description:
Lost Pratt through truss bridge over Big Sioux River

Significance: