when did the street in front of the white house close
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 H Street or Constitution Avenue, both of which eventually link back with Pennsylvania Avenue. Plans drafted by District officials after the September 11th attacks call for Pennsylvania Avenue downtown to be used as a dividing line for any mass evacuation of the city. People north of the avenue would be directed north while those south of the avenue would be directed south. No vehicles would be allowed to cross the avenue.[citation needed]
White House basement A bowling alley was added by Richard Nixon in 1969. There had previously been a bowling alley in the West Wing, built for President Truman in 1947, which had been moved to the Old Executive Office Building in 1955.[6]