boomage

from The Century Dictionary.

• noun Nautical, a duty levied as a composition for harbor-dues, anchorage, and soundage.
• noun Compensation or toll for the use of a boom, or for the service rendered by the owner of a boom in receiving, handling, driving, and assorting logs floating in a stream.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A fee charged by the owner of a boom for its use in storing logs.
• noun A fee charged for the use of the area where a boom is tied.