Wisconsin Avenue is a major thoroughfare in Washington, D.C., and its Maryland suburbs. It starts in Georgetown just north of the Potomac River, at an intersection with K Street under the 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).