Burlington Northern SD40-2 Number 8141, built July 1980; SD40-2 number unknown; SD40-2 number unknown; crossing the high bridge over the Sheyenne river at Valley City, North Dakota with an eastbound freight on March 14, 1981. Photo by Al Christianson.

Burlington Northern SD40-2 Number 8141, built July 1980; SD40-2 number unknown; SD40-2 number unknown; approaching the high bridge at Valley City, North Dakota with an eastbound freight on March 14, 1981. Photo by Al Christianson.

Burlington Northern eastbound coal train X200 with Wisconsin Power and Light hopper cars and caboose on the trestle over the Sheyenne River in Valley City, North Dakota on March 14, 1981. Photo by Al Christianson

Burlington Northern eastbound coal train with Burlington Northern hopper cars on the trestle over the Sheyenne River in Valley City, North Dakota on February 20, 1981. Photo by Al Christianson.

Burlington Northern Sheyenne River viaduct at Valley City, North Dakota, on May 17, 2003. This former Northern Pacific structure is in their 1st subdivision of the Fargo division. Photo by GJ Werkema. Subject Classes: bridge, viaduct

Burlington Northern Sheyenne River viaduct at Valley City, North Dakota, on May 17, 2003. This former Northern Pacific structure is in their 1st subdivision of the Fargo division. Photo by GJ Werkema. Subject Classes: bridge, viaduct

Burlington Northern Sheyenne River viaduct at Valley City, North Dakota, on May 17, 2003. This former Northern Pacific structure is in their 1st subdivision of the Fargo division. Photo by GJ Werkema. Subject Classes: bridge, viaduct

Eastbound loaded coal X200 at Valley City, North Dakota on March 14, 1981. Unit train with WISX gondolas, owned by Wisconsin Power and Light. Photo by Al Christianson.

Milwaukee Road SD40-2 number unknown; Burlington Northern SD40-2 number unknown; Burlington Northern SD40-2 number unknown; Burlington Northern SD40-2 number unknown; with eastbound loaded coal X200 at Valley City, North Dakota on March 14, 1981. Unit train of WISX gondolas, owned by Wisconsin Power and Light. Photo by Al Christianson.

Burlington Northern westbound empty coal train with Burlington Northern hopper cars on the trestle over the Sheyenne River in Valley City, North Dakota on February 20, 1981. Photo by Al Christianson.