The Design 1013 ships had a deadweight tonnage of 8,800 and gross register tonnage of 5,600. They had a length of 423 feet 9 inches, beam of 54 feet, draft of 24 feet 2 inches and hold depth of 29 feet 9 inches.
A total of 111 of the type were completed—106 for the EFT and an additional five completed later for private contractors. All of them entered service between 1918 and 1920, with the majority probably being completed in 1919. About 37 of the completed ships were acquired by the U.S. Navy either during or shortly after the war for service as auxiliaries, but most of these were quickly decommissioned in 1919 after only a few months' service