N.J. Stat. § 12:6-5: General powers and duties

Such harbor masters shall have authority, within the limits fixed by the board at the time of the appointment:

a. To supervise the use of the inland waterways in such locality;

b. To prevent permanent anchorage or obstruction of any character from being located therein;

c. To remove all temporary obstructions therefrom; and

d. In all other ways to protect the interests of the state and the public in the waterway by keeping it free from obstruction and open to navigation.