There was a corner of the falls that wasn't frozen. On the right side you can see the path up to the out cropping across from the falls. I walked up there and tried throwing a snowball across the falls, attempting to hit the bank on the left.
It's a lot wider than it looks (I looked it up when I got home and it's around 300 feet wide).
I wasn't even close :-(

The railroad trestle is about 230 feet above the river. It's slated to be replaced starting this year. It was built in 1875. You can read about the bridge project here. It just won't look the same without this bridge there.