The USS Tillamook was a United States Navy tugboat with a service life spanning from 1914 to 1947. Built by the Seattle Construction and Dry Dock Company in Seattle, Washington, she was laid down on January 6, 1914, and launched on August 15 of the same year. Following her launch, she was quickly placed into service, likely in late August or September 1914. Upon commissioning, USS Tillamook traveled south to California, where she reported for duty at Mare Island Navy Yard in Vallejo. Throughout her 33-year career, she served primarily as a towing and assisting vessel within the yard, supporting the operations of the Navy's fleet at Mare Island. Her duties would have included towing ships, assisting with docking, and general harbor support. Her designations evolved over her career, reflecting changes in Navy classification systems. Initially designated as Tug No. 16, she was reclassified as AT-16 on July 17, 1920, when the Navy adopted modern hull designation systems, identifying her as a fleet tug. On January 31, 1936, she was reclassified as a harbor tug, becoming YT-122. Later, on April 13, 1944, her classification was updated to YTM-122, indicating her role as a medium harbor tug. USS Tillamook was decommissioned and transferred to the Maritime Commission for disposal on April 28, 1947. Throughout her service, she played a vital support role at Mare Island, contributing to the logistical and operational needs of the Navy during both peacetime and wartime periods, reflecting her maritime significance as a reliable harbor and fleet support vessel for over three decades.

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