April 1, 2011 6:30 pm Riverwalk Opens at Washington's Navy Yard The Navy Yard portion of DC’s Riverwalk opened Friday. It had been off limits to the public due to safety concerns following the 9/11 terrorist attacks. Local 0:32 Photo shows person riding on back of Metro rail car 2:48 Speed camera installed near site of 2022 fatal high school pedestrian crash 2:12 2 teens arrested in Greenbelt senior skip day shooting 3:22 Protesters remove barricades at George Washington University 2:15 Veteran of wars in Iraq, Afghanistan killed in Laurel hit-and-run