BNSF Bridge #78.56

In 1887, the Willmar and Sioux Falls Railway Company (W&SF) began construction on a new 147 mile railroad line between Willmar, Minnesota and Sioux Falls, South Dakota. Construction would be completed by 1888. The following year, the Sioux City and Northern Railroad (SCN) Company began construction on 96 miles of new railroad, starting at Garretson, South Dakota and extending south to Sioux City, Iowa. An additional extension would be made in 1893, when the Sioux Falls, Yankton and South Western Railway Company (SFY&SW) constructed 58 miles of new railroad to Yankton, South Dakota. The SFY&SW would be sold to the W&SF in 1893, and the SCN would be sold to the W&SF in 1900. In 1907, Great Northern Railway (GN) purchased the W&SF. GN built and acquired an extensive railroad network throughout Minnesota.

GN operated this route as a mainline. The Sioux City leg of the route provided an important and competitive connection for stock yards at Sioux City to the Twin Cities. In 1970, GN merged with rival Northern Pacific Railway and Chicago, Burlington & Quincy Railroad to form Burlington Northern Railroad. The segment between Yankton and Irene was abandoned in 1981, and the segment between Irene and Sioux Falls was abandoned in 1982. BN was in turn merged with Atchison, Topeka & Santa Fe Railway in 1996, to form BNSF Railway. BNSF currently operates the Marshall Subdivision over the Willmar to Sioux City segment of this line, and the Corson Subdivision over the Garretson to Sioux Falls segment of this line.