Maintaining large-scale public metal sculptures presents unique challenges due to their exposure to environmental elements and high visibility. One of the most common issues is corrosion, as metals like steel and bronze react with moisture, pollutants, and salt, leading to deterioration over time. Environmental factors such as extreme temperatures, UV radiation, and acid rain further accelerate wear and tear, requiring frequent protective coatings and repairs.

Structural integrity is another critical concern, as large sculptures often face stress from wind, vibrations, or even human interaction. Regular inspections are necessary to identify cracks, weld failures, or foundation shifts that could compromise safety. Additionally, vandalism and graffiti pose aesthetic and material challenges, demanding specialized cleaning techniques to avoid damaging the artwork.

Budget constraints and logistical difficulties also complicate maintenance efforts, especially for installations in hard-to-reach urban or coastal locations. Balancing preservation with public accessibility requires careful planning and collaboration between artists, conservators, and local authorities. By addressing these challenges proactively, communities can ensure these iconic artworks endure for generations.