Melville Fuller,
Duluth Superior Bridge Company v…
“ That it appears from the averments of the libel that the bridge alleged to have been injured was a structure on land, for purposes of land travel and convenience exclusively, not erected, maintained, or operated in any sense or in any degree in aid of navigation, but, on the contrary, an obstruction and impediment to the navigation of a public navigable water channel and highway, a part of the public waters of the United States, then and there navigable to ships engaged in commerce and navigation. ”
