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) falling into the river. Coal gas-lit lampposts providing lighting along the bridge. Fences lined the side of the roadway on the southwestern abutment to prevent carriages from driving off the embankment. The bridge was served on its city-side by Pennsylvania Avenue. Although the avenue was paved only to within of the bridge, cement sidewalks on both sides of the avenue provided improved pedestrian access to the bridge. Kentucky Avenue SE, which met Pennsylvania Avenue SE just before the bridge, was graded prior to the bridge's dedication. East of the river, the state of Maryland constructed a new road along the