Source : Webster's Revised Unabridged Dictionary (1913)

Wharfage \Wharf"age\, n.
   1. The fee or duty paid for the privilege of using a wharf
      for loading or unloading goods; pierage, collectively;
      quayage.

   2. A wharf or wharfs, collectively; wharfing.

Source : WordNet®

wharfage
     n 1: a fee charged for the use of a wharf
     2: a platform built out from the shore into the water and
        supported by piles; provides access to ships and boats
        [syn: {pier}, {wharf}, {dock}]