This was the day of his final press conference.
His I-95 dedication speech may be read here.
It was 35th U.S. President John F. Kennedy who took an interest in the development of the Washington, D.C. freeway system, particularly regarding the north-south inside Washington, D.C. segment of planned I-95
JFK's Adminstration Gave Us the B&O Route North Central Freeway
JFK Adminstration Freeway System Other Aspects
JFK was apparantly more hands with the planning than predecessor Eisenhower
JFK's B&O North Central Freeway Was Subvertedhttp://cos-mobile.blogspot.com/2009/12/how-jfks-dc-north-central-freeway-was.html