That is a nice one, and it is called a Barn Bridge is it not ? It leads to the high drive.

I'm curious as to what suggests to you a Shaker connection. Have you seen the barn foundation at Canterbury Shaker Village ? It was a massive three story High Drive Barn, the granite ramp is itself massive, and built just like a bridge abutment, a backwall and wingwalls, but on a huge scale. Perhaps a hundred feet long and I know it is thirty feet high, and that sixty feet from the barn.

I've seen photos of it before it was lost to fire in '74, but never one shot from an angle in which you can see it's bridge.