The bucket is a wooden blade, or paddle of a paddlewheel which dip in the river and propel the boat. Planks so used are called bucket planks or bucket boards. On larger vessels a single bucket consisted of several heavy boards bolted together. The extreme depth to which they submerge is called the dip.

Phyllis Dale Travel Steamboats.org recommends ...
For river cruises, train journeys and other leisure travel, domestic or international, contact our favorite travel agent, Phyllis Dale. She has the experience you need when planning a vacation.
Note: Phyllis does not book day excursions.
donations welcome