Amelia Earhart Dam
The Amelia Earhart Dam is an earth-fill dam spanning the Mystic River near its mouth between Somerville and Everett, Massachusetts. It was built in 1966 to regulate tidal effects and the incursion of salt water in the upstream river basin. It has 3 locks for marine traffic. The largest is 325 feet, long and 45 feet wide; the two smaller locks are 120 feet long and, 22 feet wide. There is no public access to the dam.
The dam is named after the aviation pioneer Amelia Earhart whose plane disappeared in 1937.
Coordinates: 42°23′42″N 71°04′30″W / 42.394881°N 71.075054°W
...
Wikipedia