Continuing up the original IRT subway, we arrive at our next abandoned station: 18th Street. 18th St was put in service with the rest of the IRT line from City Hall to 145th St on October 27th, 1904, with two 5-car side platforms, as was the standard for the IRT local stations.
As platform lengthening spread through the system, the 23rd St station (the next stop going north) was extended south, and the 14th St-Union Square station was extended north. With the average NYC block being about 264 feet long between consecutive streets, it was illogical to have the three stations so close together. As a result, 18th St outlived its useful life, and it was removed from service on November 8th, 1948.
