See also the main D.C. lost streams project page, with maps and background.
Combined sewer overflow
Along the Northwest Branch of the Anacostia
Uncovering long-lost historic hydrologic features.
Floodgates, levees, and marshes
Chalk one up for historic neighborhood names
Pictures from the SE/SW waterfront area
Preview of the Hidden Rivers and Lost Neighborhoods bike tour.
Maps of DC's long-lost rivers.