October of 1904 marked a time in New York history, the city gathered around City Hall alongside Belmont and Parsons who opened the Interborough Rapid Transit Company (IRT) as the city’s first the subway line. The IRT constituted the first of the three stages of construction. This project not only required large engineering and work forces, but also overcame formidable physical barrier. In fact, the subway construction gave experiences such as: the geological obstacles to underground transit construction (the topography between 23rd to 103rd street was so rough with steep hills and rocky outcroppings); the preparation of an engineering plan; and the construction problems that were encountered. For example, the dual system eliminated the East
