Wisconsin Avenue is a major thoroughfare in Washington, D.C., and its Maryland suburbs. The southern terminus begins in Georgetown just north of the Potomac River, at an intersection with K Street under the elevated Whitehurst Freeway. The section of Wisconsin Avenue in Georgetown was called High Street before the street names in Georgetown were changed in 1895 to conform to those of the L'Enfant Plan for the federal city (although Georgetown predates the planned capital by half a century).