This is a natural waterfall. However, many years ago it was enhanced by a dam at the top of the falls to support the local power plant. A large tubing ran from the dam at the top of the falls to the electric generating plant below the bridge that spans the river.
The plant looks deserted now. However it is not! It is still producing electricity and the current owner keeps it in good operating condition. I'll do some research on that for another post.
Enjoy the waterfall Betsy!