This track (the one in the first video) parallels the new alignment of US 24 between Woodburn and Defiance. I made fairly regular trips along that highway between 2010 and 2012 or so, and for the most part at that time the track was used to store surplus autoracks and boxcars. The video was made toward the eastern end of the line, though; maybe there was more actual traffic east of Defiance.
