Here is an overlay that I made of the area just west of the Animas. Between the Animas and just west of MP 161 the highway is north of the grade and then they converge. The grade then starts to diverge on the west end of this map where it will climb on the north side of the road to loop to the south at Franklin Jct to head down Wildcat Canyon. The bridge sites that I hunted for are around the "30" on the map.
Dang those aerial providers that substitute a newer cloudy view for an older clear view. They screwed up my overlay at Ophir also!
Dave