On March 3, 2016, the permanent PATH station building opened one block to the south, and the temporary entrance was closed. The opening of the new station building allowed the temporary station entrance to be demolished in August of that year. This, in turn, allowed the construction of the Performing Arts Center on the site. On June 29, 2016, billionaire Ronald Perelman donated $75 million to the construction and endowment of the Performing Arts Center at the World Trade Center. Because of his contribution to the facility, the center was renamed after him. In September 2016, Barbra Streisand was named the Center's Chairwoman of the board. The concept art for the new building was revealed that month, with mostly positive reviews from architecture critics. On March 27, 2017, it was announced that construction would be delayed due to ongoing disputes between the Lower Manhattan Development Corporation (LMDC) and the Port Authority regarding funding for the project. When completed, the Performing Arts Center will include approximately 90,000 square feet across three floors. The public floor will be located at street level, and will house a restaurant/bar to provide refreshments during show intermissions. The second floor will consist of rehearsal and dressing rooms for theater actors, and the third floor will house three distinguished theaters. All three theaters are designed so that the walls will be able to rotate and expand to provide extra space for a single theater if needed. The theaters will occupy approximately 1,200 people combined. Construction began in August 2017 on its below-grade parking garage, which will be accessible from the rear of the building on Vesey Street. Work on the building itself was originally expected to begin in 2018, with an estimated 2020 completion date and opening. The Port Authority gave the Performing Arts Center a 99-year lease in February 2018. The first pieces of structural steel arrived that April. Work was halted in early 2018 due to financial disagreements between the Port Authority and LMDC, but routine steel work and concrete pouring resumed shortly thereafter. Construction of the structure itself will begin in mid-2019 when the first major piece of structure steel, nicknamed "Big Boy", is delivered to the construction site. The beam would be the main structural support connecting three of the Performing Arts Center's theaters.  , the completion date was scheduled for between 2020 and 2022. The Performing Arts Center received $89 million from the LMDC and the United States Department of Housing and Urban Development in December 2018. Mixocetus  Mixocetus is a genus of extinct baleen whale belonging to the family Tranatocetidae.