From what I've read, it was originally double tracked, then gaunletted sometime after 1910 because of the increasing weight of locomotives and rolling stock.
In the photo below, taken, not from Russ's commanding vantage point in the parking lot, but from the present far platform (directly above the first or second pier from the Highland side), the "rigging" can be seen. It is, I believe, the last remnant of Central Hudson's power line.
Per Mr. Schaeffer the director of Walkway (and the photographer of note) high winds are not expected to be an issue during months when the walkway will be in operation.