Eye Study

On one of my first walks along Cape Cod Bay, I made my way west from the Linnell Landing parking lot in Brewster. I came upon a strange man-made object that I have come to believe is some sort of mooring float made out of large timbers. On top of the float are a half dozen massive steel eye bolts each with a large steel link hanging from it. The eyes pass through steel plates that are secured to the float with huge hex nuts. I was intrigued with the large eyes and the nuts rusting in the harsh environment and have photographed them on numerous occasions. If anyone out there can correctly identify the object these eyes are part of, I would welcome the information.