Looking west at the bridge and missing span
Photo taken by Nathan Morton in May 2014
BH Photo #283316
It's a repair job:
"The 100-year-old Judith River trestle bridge carries a single freight line over the Judith River and provides the only cost-effective means of shipping agricultural products from numerous small communities. Repairs include rebuilding concrete pier foundations, restoring steel towers and bridge girders, and making related upgrades that will improve the load-carrying capacity of the rail line, as well as providing protection from any similar damage that may be caused by future flooding of the river. "
http://www.eda.gov/news/pressreleases/2013/05/30/mt_rail.htm
I found a webcam for this bridge here:
http://video-monitoring.com/construction/mdot/slideshow.htm?...
The presence of a construction webcam and construction equipment visible under the bridge lead one to speculate if this bridge is about to be demolished.
This Trestle Appears to have been repaired and all the construction equipment has bee removed