The board may make, for a satisfactory consideration, any lease or sale to the owners of the lands fronting on the said basin, of the right to have the exclusive use of the said basin or basins, for the purpose of wharfage and docking, and to charge a reasonable sum for the use of the same on the line of bulkhead owned by them respectively; and that from and after the filing of said map and survey, the same shall remain as a public basin or basins, and they are hereby dedicated for that purpose.
N.J.S. § 12:3-15