When real estate or any right or interest therein has or shall have come into the possession or control of the commissioner, or when he has or shall have taken real estate or any right or interest therein, in the name of the State for the use of the State in the improvement, betterment, reconstruction or maintenance of a State highway, and the commissioner has or shall have determined that the property so acquired is no longer required for such use, he may:
All or any portion of such real estate, or any interest therein, with or without improvements thereon, including the hereditaments, appurtenances, easements and rights of way, and make the necessary conveyance of same.
N.J.S. § 27:12-1