This is after the 5 percent ‘adjustment’ that they did to cook the books, btw. It marks the highest Debt to GDP since 1945.
The war got as high as 129 percent in 1946, which is the current all-time record.
Debt may have been higher than that at the end of the Civil War. By the 1870's you had railroad "Robber Barons" and an economic boom.
How did the economy do likewise after WW2?