Lynn Harbor in Lynn lies about eight miles northeast of Boston Harbor, at the head of Broad Sound. It is about three miles long and about 1.5 miles wide.
The project, completed in 1935, consists of:
- A channel, 22 feet deep and 300 feet wide, extending 2.7 miles from an area west of Bass Point in Nahant to the head of the harbor; and
- A turning basin 22 feet deep and 550 feet wide at the head of the harbor.