John Barry Memorial

Historical marker location:

Downtown Washington, District of Columbia

( Marker is on 14th Street Northwest north of I Street Northwest, on the right when traveling north.)

Marker installed: 1914

The city was built on a swamp: The area that is now Washington, D.C. was originally a swampy, marshy region along the Potomac River. The construction of the city involved extensive drainage and landfill projects to make the land suitable for building.