Description: Grenadier's Battery was a circular defensive structure built in New York, in April of 1776 and was located on the bank of the Hudson River near Washington and Harrison Street. It featured breastworks along the river to Hubert Street. In 1780, while in British hands, the battery was reconstructed into a redoubt and renamed Foundry Redoubt. The redoubt was abandoned in 1783 after the United States defeated the British in the Revolutionary War.