Authorizing the revision of lines and grades on a portion of City Plan No. 375 by placing on the City Plan a certain portion of Sixty-Seventh Street, previously stricken from the City Plan, extending southeastwardly from the present terminus of Sixty-Seventh Street, southeast of Essington Avenue, to connect with a presently disconnected portion of Sixty-Seventh Street which extends further southeastwardly to the Schuylkill River, all under certain terms and conditions.