Keywords: Traffic plaza on Columbia Island - Arlington Memorial Bridge - 2011.jpg en Looking west at the traffic circle and plaza on the north end of Columbia Island in the Potomac River in Washington D C in the United States Columbia Island is part of the District of Columbia In the lower foreground is the Boundary Channel Bridge with the two memorial pylons The George Washington Memorial Parkway flows across and along the island and around the traffic circle Stretching into the distance is the Arlington Memorial Bridge finished in 1932 The Lincoln Memorial Watergate Steps and Washington D C can be seen on the far shore http //www nps gov/common/uploads/photogallery/ncr/park/gwmp/35B7531C-1DD8-B71C-07346355281074DE/35B7531C-1DD8-B71C-07346355281074DE jpg National Park Service U S Department of the Interior 2011 Columbia Island Arlington Memorial Bridge Watergate Steps Aerial views of the Lincoln Memorial George Washington Memorial Parkway PD-USGov |