plan to spend some time along the Tidal Basin, an approximately 107-acre pond encircled by a 2.1-mile loop trail. Constructed to use the strong tides of the Potomac River to clear silt from the ...

and East Basin Drive, SW. Drivers should expect delays in this area. A relocated Ohio Drive is expected to open in October. The Potomac River Tunnel is part of the D.C. Clean Rivers Project.