The board may, as a consideration for the transfer of title of any riparian lands to the state, enter into an agreement with the owner thereof to lease and grant, after transfer of title to the state, the use and occupation of the riparian lands as well as the adjacent lands under tidewater, to such owner or any party designated by him, whereby the lands, both riparian and under tidewater, shall be improved and developed at the expense of the grantee or lessee, in such manner, under such plans and specifications, at such minimum cost and within such time as may be required by the board.
N.J.S. § 12:3-66