The USS Arroyo (SP-197) was a civilian motorboat constructed in 1913 by the Luders Marine Construction Company in Stamford, Connecticut. Originally owned by Mr. A. M. Huntington, the vessel was leased by the U.S. Navy for a nominal fee of one dollar on April 21, 1917, to serve during World War I. She was commissioned as USS Arroyo at the New York Navy Yard in Brooklyn on June 25, 1917. Designed as a motorboat, the Arroyo served primarily within the Naval Coast Defense Reserve of the 3rd Naval District. Her initial assignment involved working with the radio office at the New York Navy Yard, reflecting her role in coastal defense and communication support. She was laid up at the Marine Basin in New York on January 2, 1918, suggesting a temporary period of inactivity or maintenance. Recommissioned on April 18, 1918, the USS Arroyo departed New York City on May 31, 1918, heading for the Great Lakes region. There, she was active in patrol duties, operating out of Detroit and St. Clair, Michigan, contributing to the security and surveillance efforts in the inland waters during the final months of the war. Following the armistice on November 11, 1918, which marked the end of hostilities, the Arroyo returned to New York City. Her service concluded shortly thereafter; she was decommissioned on December 16, 1918, and returned to her owner. The vessel’s name was simultaneously stricken from the Navy Directory, marking the end of her brief naval career. Throughout her service, USS Arroyo exemplified the use of civilian vessels adapted for wartime patrol duties, highlighting the Navy’s utilization of private vessels during World War I to bolster coastal defenses and inland patrol operations.

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