Conservation-restoration of the Statue of Liberty The restored statue was reopened during Liberty Weekend, its 100-year anniversary celebration held July 3–6, 1986. The preparations for the centennial celebration of the Statue of Liberty began in 1979. Formed by the National Park Service (NPS), the custodians of the statue since 1933, to investigate possible development alternatives[incomplete sentence]. A report titled "Analysis of Alternatives", published in December 1980, proposed measures to remedy the certain conditions confronting visitors to the Statue of Liberty, such as the long lines and waiting time to enter the crown of the statue. The proposed measures included the instatement of systems for numbered ticketing
Statue of Liberty the Eiffel factory in the nearby Parisian suburb of Levallois-Perret. The change in structural material from masonry to iron allowed Bartholdi to change his plans for the statue's assembly. He had originally expected to assemble the skin on-site as the masonry pier was built; instead he decided to build the statue in France and have it disassembled and transported to the United States for reassembly in place on Bedloe's Island. In a symbolic act, the first rivet placed into the skin, fixing a copper plate onto the statue's big toe, was driven by United States Ambassador to France Levi P.