N.J. Stat. § 12:6-8: Powers of board; assistance of municipalities and counties

The board may improve, by deepening and widening as it shall deem advisable, such streams, creeks, rivers or inlets as connect with or are tributaries to the inland waterway system or that connect with or flow through any of the tidal waters bordering or adjacent to the Atlantic ocean.

The board may engage in such improvements in conjunction with any municipality or county through which any of such streams, creeks, rivers or inlets flow or are adjacent to.