The board of commerce and navigation shall investigate and report annually to the legislature the condition of water-front and harbor facilities and any other matter incident to the movement of commerce upon all navigable rivers and waters within this state or bounding thereon. The board shall also recommend to the legislature and to the various municipalities interested therein such measures as may, in the judgment of the board, be necessary or advisable for the preservation of proper navigation or its improvement or the improvement of commerce upon such waters.
N.J.S. § 12:5-1