Conservation-restoration of the Statue of Liberty the Historic American Engineering Record (HAER). According to the "New York Times", the American Society of Civil Engineers (ASCE) would also be donating a set of three-dimensional computer drawings of the statue, rendered in the computer-aided design (CAD) program. The drawings were to aid in the future maintenance of the statue. These drawings were later given to the NPS, and were important in analyzing the wind bearing capacity of the structure within the statue. From November 7, 1982, public announcements were made by project officials that the Statue of Liberty would be completely closed to the public for as long
Statue of Liberty of the copper skin over decades, leaving two layers of coal tar, originally applied to plug leaks and prevent corrosion. Blasting with baking soda powder removed the tar without further damaging the copper. The restorers' work was hampered by the asbestos-based substance that Bartholdi had used—ineffectively, as inspections showed—to prevent galvanic corrosion. Workers within the statue had to wear protective gear, dubbed "moon suits", with self-contained breathing circuits. Larger holes in the copper skin were repaired, and new copper was added where necessary. The replacement skin was taken from a copper rooftop at Bell Labs, which had a patina that