Sections 48:12-61 to 48:12-66 of this title shall apply to any alterations, changes, relocations or openings ordered by the board of public utility commissioners prior to April fourteenth, one thousand nine hundred and thirty, if no part of the work under such order had been actually commenced on the ground on said date.

No further application to the board shall be necessary in any proceedings in which an order of the board had been made prior to said date, to bring the alterations, changes, relocations or openings so ordered within the provisions of said sections 48:12-61 to 48:12-66.