New Jersey Statutes Title 27. Highways 27 § 9-6

When a state highway, or portion thereof, has been or shall be improved or reconstructed by the board of chosen freeholders of a county under an agreement with the commissioner, and the commissioner has agreed or shall agree to reimburse the county for the cost of the construction or improvement of such highway, or portion thereof, from state funds, the commissioner shall also agree to pay and the proper state agency shall pay to the board of chosen freeholders, in addition to the cost of the improvement or reconstruction, the actual amount of interest paid by the board for any money raised or borrowed by it for the purpose of making the improvement or construction. The interest shall be considered as part of the construction cost of the road or highway.

This section shall apply to all roads constructed or to be constructed under chapter 6 (§ 27:6-1 et seq.) and chapter 7 (§ 27:7-1 et seq.) of this title, and shall apply to any agreement relative to the construction thereof and the payment therefor entered into between the commissioner and any board of chosen freeholders, or to any contract which may hereafter be made between the commissioner and any board of chosen freeholders.