Pennsylvania Avenue lighthearted celebrations, including a series of day- and nighttime Shriner's parades in the 1920s and 1930s. Thomas and Concepcion Picciotto are the founders of the White House Peace Vigil, the longest running anti-nuclear peace vigil in the US, at Lafayette Square on the 1600 block of Pennsylvania Avenue. After the Oklahoma City bombing in 1995, the Secret Service closed the portion of Pennsylvania Avenue in front of the White House to all vehicular traffic. Pedestrian and bicycle traffic, however, was still permitted on the sidewalk. After 9/11 this policy was made permanent. Near the White House traffic is redirected to
Pennsylvania Avenue Bridge (1890) successfully carried through in the District." Pennsylvania Avenue Bridge (1890) The Pennsylvania Avenue Bridge was a crossing of the Anacostia River in Washington, DC at the site of the present John Philip Sousa Bridge. It was constructed in 1890 and demolished around 1939. The 1890 Pennsylvania Avenue Bridge was slightly upstream from the location of an earlier 1815 bridge. It had two northwestern abutments made of stone, both of which rose above the low-water mark. The single southwestern abutment was made of compacted earth covered with stone slabs. There were nine piers in the river itself, each made of brownstone