Conservation-restoration of the Statue of Liberty Conservation-restoration of the Statue of Liberty A centennial conservation-restoration of the Statue of Liberty ("Liberty Enlightening the World") occurred between 1984 and 1986. The Statue of Liberty, by French sculptor Frédéric Auguste Bartholdi, is a colossal artwork on Liberty Island in New York Harbor, and is a part of the Statue of Liberty National Monument. Much of the restoration effort was based on unprecedented restorative methods, as metallurgical repair work on such a large scale had never been attempted. Many scientists, engineers, government organizations, and professional consultants evaluated and dealt with the various problems and tasks facing the restoration effort.
Conservation-restoration of the Statue of Liberty the statue had also been misaligned. The cause(s) of the misalignments are undetermined, but a few hypotheses have been suggested. The first hypothesis proposed was that Viollet le Duc—the engineer who initially worked on the project with Bartholdi and who designed the structural reinforcement of the arm and the head (displayed in 1876 at the Centennial exhibition in Philadelphia) had died after having completed those two sections—and had employed engineering methods that differed significantly from those of the better-known bridge engineer Gustave Eiffel, who had finished the remainder of the work on the statue, and who is generally credited for