The SS United States (1864) was a notable merchant steamship constructed in 1864 by the S. Gildersleeve & Son shipyard in Portland, Connecticut. A screw steamer, she featured a brigantine rig, with her foremast square-rigged and her mainmast fore-and-aft rigged. Her hull was composed of white oak and cedar, reinforced with an iron strap, and she had a copper bottom, likely made of Muntz Metal (a copper-zinc alloy). The vessel was built with three decks, including a main deck, a "tweendeck," and a lower hold, providing ample space for cargo storage. Her design included a round stern and deck saloons, emphasizing both functionality and aesthetic appeal. Powered by a vertical direct-action steam engine, she boasted two large 40-inch cylinders with a 40-inch piston stroke, enabling her to operate effectively as a merchant vessel of her era. Her construction was inspected and rated as A-1, indicating high-quality standards suitable for insurance purposes. Throughout her career, the United States was homeported in both New York City and Boston, reflecting her active service along eastern U.S. routes. Initially owned by Wakemann, Dimon & Company and Gildersleeve & Sons, and later by the Merchant Steamship Company, she transported general cargo, including bales, bottles, china, and machinery. Her service ended abruptly when she ran aground off Cape Romain, South Carolina, on April 3, 1881, during a voyage from Boston to Savannah. The ship encountered a hazy atmosphere and strong southwest winds that contributed to her grounding, which she struck in about twelve feet of water. Despite efforts to free her using tugs, she was ultimately abandoned after she bilged and was deemed beyond salvage. By that time, she had accumulated approximately 14 feet of water in her hold, and her wreck was rapidly deteriorating, though her "between deck" cargo was recovered in good condition. Her wreck site was located in 2013, marking her as a ship of maritime historical interest. Valued at around $60,000 with an additional cargo worth roughly $25,000, the SS United States (1864) remains a significant example of 19th-century American merchant shipping.

This description has been generated using GPT-4.1-NANO based on the Vessel's wikidata information and then modified by ShipIndex.org staff.