Did you see the Greater Greater Washington post titled "Was your neighborhood obsolete in 1950?" The post is based upon the content of "Washington: Present and Future - A General Summary of the Comprehensive Plan for the National Capital and Its Environs" dated April 1950.
If you look at the map, you can see that a part of Bloomingdale was considered obsolete.
Specifically, the map indicates with diagonal lines that the unit blocks of Florida Ave NW up to U St NW were categorized as obselete.
You can see on the last page of the document a map of the area bounded by 7th St NW, New York Avenue NW, New Jersey Avenue NW and Florida Avenue NW. Look at the map on the right and see the proposal for this area. Proposed inner loop express highway -- 395 -- leading up to Florida Avenue NW along New Jersey Avenue NW. Plus, bulldozing all of the existing buildings and building what appear to be public apartment buildings.
Here is a color version of the GGW map: http://www.houseguydc.com/images/50sDC.jpg.
What do you think?