The building contains 43 elevators and 14 escalators. When built, 1 Wall Street contained 29 elevators, some of which were near the building's exterior walls. Irving Trust had its own private elevators, while the rest of the building contained three types of elevators, providing service to the lower, intermediate, or upper floors. Because the New Street side of the building was lower than the Broadway side, engineers configured the original elevator shafts so that double-deck elevators could be installed if necessary. These double-deck elevators were never built. At its completion 1 Wall Street was the first office structure in Lower Manhattan to use alternating current for electric power. It contained a network of pneumatic tubes for sending documents between floors.