A route lying wholly within the boroughs of Manhattan and Queens which shall begin at a point on East Sixty-third street at the westerly line of York avenue in the borough of Manhattan where a connection can conveniently be made to other future rapid transit railroads; thence extending easterly along East Sixty-third street under York avenue and Franklin D. Roosevelt drive; thence continuing easterly under the West channel of the East river, Welfare island and the East channel of the East river to the borough of Queens; thence continuing easterly under Queens bridge park and Vernon boulevard to a point on Forty-first avenue at the easterly line of Vernon boulevard where a connection can conveniently be made with other future rapid transit railroads.
N.Y. Rapid Trans. Law § 21-A