Oneida was built at Oswego, New York 1808–1809, under contract awarded by her first commanding officer, Lieutenant M. T. Woolsey, to Henry Eckford and Christian Bergh. Although her displacement was 243 tons by carpenter's measurement, her draft could compare with a sloop of 80 tons. This enabled her to enter the rivers feeding Lake Ontario without fear of grounding. She was delivered by the contractors in the spring of 1809, but was not equipped and sent upon the lake until the fall of 1810.