From 81st to 90th streets runs a final, enclosed double-decker structure. The southbound roadway is again raised over the northbound roadway in a short segment of the tunnel between 81st and 86th Streets. The promenade of Carl Schurz Park was built over the highway in 1939, near Gracie Mansion, the New York City mayor's residence. There is a southbound entrance to the FDR Drive at the intersection of 92nd Street and York Avenue. York Avenue then parallels the FDR Drive until 96th Street, where York Avenue ends. The FDR Drive ascends onto a short elevated viaduct over the 96th Street interchange (exit 14) then descends to street level again.