New orleans bridge named after shot senator
I think you may be referring to the John B. Connally Jr. Bridge, which spans the Mississippi River in New Orleans, Louisiana. The bridge is named after John Bowden Connally Jr., a former United States Senator from Texas who was a prominent figure in American politics.
However, I couldn't find any information about a bridge in New Orleans being named after a senator who was "shot." It's possible that you may be thinking of John F. Kennedy, the 35th President of the United States, who was assassinated in Dallas, Texas, on November 22, 1963. While there isn't a bridge in New Orleans named after President Kennedy, there is a John F. Kennedy Boulevard in New Orleans that is named in his honor.
If you could provide more context or clarify which senator you are referring to, I may be able to help you better.