During the last 120 years, there has been little maintenance performed on the stone and conditions of the terrace have deteriorated. A materials condition survey found that the marble and granite is stained and damaged and requires maintenance and repairs. Repairs include deconstructing and rebuilding some of the walls, repointing, patching holes, cleaning the stone, and trimming and removing trees and bushes along the terrace walls.
Work also includes the assembly of scaffolding, and cranes will be present at times to remove heavy stones. During each phase, the walls, pedestal, steps and curb will be dismantled, repaired and reinstalled by AOC masons.