I often wondered about the reason for the odd sterns of a couple of the Horizon container ships.
The ships also share another design detail. They have two separate stacks—one located on the starboard side of the hull and the other on the port side.
I finally got around to asking a naval architect friend about them and found out that the ships were originally built as barge (or LASH) carriers.
Lihue laid up in San Francisco:
Compare the above photos of Lihue from 2012 to this one taken early on in her history before she was converted to a container ship: Thomas E. Cuffe