Alvin Petit was selected to sculpt the historic work.
Petit says his statue will tell the story of how Tubman was a fighter, leading her followers to freedom and to battle over those who oppressed her.
The statue shows Tubman in a majestic stance, refusing to yield.
The Harriet Tubman statue will be the first of a historic African American woman in the city's public art collection.
Once completed, it will be installed on the northeast apron of City Hall.