Burlington Northern Yakima River bridge at Union Gap, Washington, on October 20, 2008. This former Northern Pacific structure is in their 3rd subdivision of the Idaho division. Photo by GJ Werkema. Subject Classes: bridge, Yakima River

Burlington Northern westbound intermodal train Number 23 crossing the Stone Arch Bridge over the Mississippi River at Saint Anthony Falls in Minniapolis, Minnesota on October 14, 1980. Photo by AL Christianson

Burlington Northern Westbound grain train crossing the Gassman Coulee trestle in Minot, North Dakota on February 19, 1981. Photo by Al Christainson

Burlington Northern Westbound grain train crossing the Gassman Coulee trestle in Minot, North Dakota on February 19, 1981. Photo by Al Christainson

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.

A view of base of Burlington Northern water tank at Wishram, Washington, undated.

Burlington Northern water tank at Wishram, Washington, undated.

Burlington Northern viaduct at Weston, Washington, in 1979. View of steel viaduct, upper Green River valley. Photo by J.M. Fredrickson. Other Subject Classes: bridge, valley, mountain

Burlington Northern viaduct at Weston, Washington, in 1979. View of steel viaduct, upper Green River valley. Photo by J.M. Fredrickson. Other Subject Classes: bridge, valley, mountain

Burlington Northern viaduct at Weston, Washington, on June 8, 1970. Steel viaduct, man standing on former NP right of way. Photo by J.M. Fredrickson. Other Subject Classes: bridge, people, railroad right of way