Jim.henderson on Wikimedia Commons CC0 Fort Lafayette. Stood on this site. It was completed in 1792. Built to protect Pittsburgh against Indian attacks and to serve as a chief supply base for Gen. Wayne's army, 1792-94. Reactivated during the War of 1812. Site sold in 1813. 9th St. just N of Penn Ave., Pittsburgh, PA by Pennsylvania Historical and Museum Commission Colour: blue Wikimedia: Flickr: Google Streetview OpenStreetMap