N.Y.C. Admin. Code § 4-101: § 4-101 Acquisition of certain lands; by reversion.

In the event that any site or plot of ground, transferred to the United States, for the erection and maintenance of a light and fog signal at Hunt's Point Park, in the borough of the Bronx, should become unnecessary or cease to be used for such purposes, such site shall revert to the city, as if such transfer had not been made.