No, not bulk carriers. The ones built out of concrete.
When I was growing up, there was one at Aptos Beach north of Monterey that I thought was fascinating.
The S.S. Palo Alto, named after my home town.
http://www.concreteships.org/ships/ww1/paloalto/
Still there, obviously not going anywhere in a hurry.
I see there's one off Cape May too.