Looks more like Pedee Viaduct (aka bridge EE52) to me, taken from the same forest road vantage point that others have used with relative ease. The "Rocky Point" bridge Rolland referred to, bridge EE50, is indeed more challenging to shoot, but can be done if you hoof into the brush and trees, especially near its southeast corner. Not as open as it was 30 years ago, but doable. The Switcher more commonly runs west with 15 to 25 loads (or more) nowadays, but that's partly because it's a M/W/F trip, not the M-F that it used to be. STMA was known to pull as many as 17 loads west back in the 80s, though.