A dredge
The purpose of firing a Canon from a ferry boat was to let the shipping traffic, going up and down the river, no that a vessel was crossing the shipping lane. This method was used before there was radar.
Shipping goods
The Mississippi River is used for recreation, hydroelectric power and shipping
It was a shipping and trading boat used by the British.Read more: What_was_the_Mayflower_used_for_before_the_pilgrims_sailed_on_it
Boat docks are most commonly used for the departure and arrival of boats and ships. Boat Docks are also used for loading and unloading cargo such as when using boats for shipping.
The Oxford and Cambridge Universtiy boat race course is on the River Thames (between Putney and Mortlake in London).
Eleven of Russia's biggest cities are along the Volga so the river can be used for shipping goods. The river also helps create hydroelectric power for factories.
step at crocodiles
To transport anything across a river (, lake, ocean ect.) in a boat.
In some jurisdictions a navigable river is one which will allow it to be used by any vessel as large as or larger than a canoe. The question therefore is how big does a river have to be to carry a ship as opposed to a boat. For sailing ships, it is easy - they must have three or more masts. Submarines may be large but they are always boats as are ferries.
Used for shipping lots of cargo such as fruit and materials. hope i helped =)
The Felucca is a traditional boat used to navigate the Nile