This was what I was referring too, though the picture here lacks what it looks like in real life.
This Fort was part of the early American defense system so I would not be surprised if the fort you refer to was designed by the same naval fort architect. Forts like this were placed along the major interests that the nation wanted protected. Today protecting Bangor seems crazy, but at the time it was the biggest lumber capital in the world.
I have no intention of traveling from birth to the grave in a manicured and well preserved body; but rather I will skid in sideways, totally beat up, completely worn out, utterly exhausted and jump off my tractor and loudly yell, "Wow, this is what it took to feed a nation!"