A little over two years ago, GM came across an image in the archives of the Library of Congress that was a bit alarming. It was a map of a proposed “Francis Scott Key Boulevard” which would run from the Key Bridge down M St. to Pennsylvania Ave.
As you can see, this plan would call for a large traffic circle where Key Bridge meets M St. M St. would be replaced by a grand boulevard interspersed with three different medians. All of Georgetown from N St. south would, apparently, be destroyed.
There have been a variety of plans floated that would call for the construction of highways through downtown DC. Thankfully most of them were stopped. But none of those plans called for anything like this for Georgetown. (Most simply used the Whitehurst Freeway, which would have been attached to an expressway to the west that would cross the Potomac at a new Three Sisters Bridge and link up to the GW Parkway near Spout Run.)