behind the colonnade. At the top of the colonnade is a carved entablature. There is also a false colonnade on the facade above the 22nd floor. The 1939 WPA Guide to New York City stated that the facade "gains dignity through the bold treatment of the intermediate stories, despite the poorly related tower and the disturbing character of the Corinthian colonnade at the base". Features Base A large arched vault is located at the center of the building's base, at the eastern end of Chambers Street, and is flanked by two smaller arched vaults. It is designed in the neoclassical style like the Arch of Constantine. The vault was large enough to accommodate New Chambers Street, which was closed in 1971 to make way for a pedestrian plaza in front of One Police Plaza and the Manhattan Municipal Building. The terracotta vault was modeled on the entrance of the Palazzo Farnese in Rome, and was also called the "Gate of the City" after William Jean Beauley painted an image of the scene. The vault separates the lobby into two sections, each with its own set of elevator banks. The second through fifth stories are also divided into two portions by the vault. As constructed, the first floor was devoted entirely to public space, with two open loggias and the two portions of the lobby. The loggia under the southern wing still exists, with staircases leading to the subway from both the north and south. It is supported by a set of columns and has a ceiling of white Guastavino tiles. The loggia under the northern wing is no longer extant, having been enclosed. The Chambers Street subway station, served by the , consists of two levels below the building: the mezzanine (shared with the Brooklyn Bridge–City Hall station, served by the ) and the platform level. The station opened in 1913, and was intended as the Brooklyn Rapid Transit Company's main subway terminal in Manhattan, but fell into disrepair after businesses moved uptown in the 1930s. When the Municipal Building was completed, there were also supposed to be new station buildings for the adjacent elevated IRT and BRT stations, designed in the same architectural style. The tracks from the Chambers Street station would have also connected directly to the elevated tracks on the Brooklyn Bridge, but the connection was never opened. Structural features While the layer of bedrock under the