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Different design, but in the same spirit there's company in upstate NY doing railbike tours https://www.revrail.com/

and one that does 4 locations, I did the one in Rhode Island a couple of years ago, it was fun - https://www.railexplorers.net

those are similar to the rail bikes in Oregon: https://ocrailriders.com

unfortunately, this particular one is closed, but there are others in the state.