Basic Barge: Can be used as a towed barge or as a temporary pier
Barge Mounted crane: Similar to pictures of various USN wartime equipment
Barge Tug: A Small motor barge with a pilot house
Small Harbor Scow: Same as above but with a gantry crane and a scow pit
Basic Pier: Large pier with pilings to anchor the marina
Pier with warehouse: same as above but with storage
Oil Barrels: Small barrels of fuel oil, cooking oil, water, or?