Archaeologists from Georgia Southern University will start exploring brick vaults built into an old Savannah retaining wall.
The investigation will start Sunday and last three to four months.
The team will create a three-dimensional model of the vaults, called the Cluskey Embankment Stores, using laser-scanning technology.
The vaults sit along the stone-paved Drayton Street Ramp on Factor's Walk.
Although the vaults have been used for parking, their original purpose is not clear.