N.J. Stat. § 32:11B-3
In the event that the State Highway Department of the State of Delaware is unable, by agreement with the owner or owners thereof, to cause title to all lands in Salem county necessary or convenient for the construction, operation or maintenance of such crossing, the eastern terminus thereof and approaches thereto to be conveyed to the State of New Jersey as contemplated in section one hereof, the State Highway Commissioner of New Jersey shall be, and he hereby is, authorized and directed upon the written request of the State Highway Department of the State of Delaware and upon being satisfactorily assured, by the deposit of cash or otherwise, by said State Highway Department that it, the said State Highway Department, will provide the money necessary to pay the condemnation money or damages awarded and expenses of the proceeding, to condemn for the use of and to become a part of the highway system of the State of New Jersey the real estate in Salem county, New Jersey, deemed by said State Highway Department of the State of Delaware and said State Highway Commissioner of the State of New Jersey to be necessary or convenient for the construction, operation and maintenance of said crossing, the eastern terminus thereof and approaches thereto. Said condemnation shall be effected in the manner in which the said State Highway Commissioner is now authorized by law to condemn land for highway purposes.
N.J.S. § 32:11B-3