The word is locks. Canals usually have to have locks to raise or lower a boat
from one part of a canal to another.
The water elevation that moves boats to a higher or lower level is typically referred to as a "lock." Locks are part of a canal system and use a chamber that can be filled or emptied with water to raise or lower boats between different water levels. This mechanism allows vessels to navigate through changes in elevation in a safe and controlled manner.
Tiller handle.
Because of water's nature to flow downhill and a canal's need to maintain a more or less constant depth, it has to maintain a relatively level course despite crossing land which changes in elevation. Therefore a canal has to "stair-step" its way over variations in terrain through locks which raise and lower boats to the changing levels of the canal's course.
Before the advent of steamboats, boats and barges typically navigated canals using human or animal power. They were pulled along the banks by teams of horses or mules that walked on towpaths, or they were pushed using poles by crew members. Additionally, gravity could assist in moving boats downhill on sloped sections of canals, while locks were used to manage elevation changes.
The tiller
Water is a cheaper means of travel than overland. Mules would pull the barges against the current.
The locks of the Erie Canal service barges and recreational boaters by raising and lowering them so they can get through the canal. The 34 locks separate the Hudson River at Waterford with the Niagara River near Buffalo.
Generally they are easier to handle than multi hulled boats
they added more life boats to boat regulations
In 1776, people traveled on canals primarily using boats, such as narrowboats or barges, which were designed for the shallow waters of the canals. These vessels were often pulled by horses walking along towpaths beside the water. Canals facilitated the transport of goods and passengers more efficiently than overland routes, contributing to the economic development of the time. The use of locks allowed boats to navigate changes in elevation, enhancing connectivity between regions.
There are sail boats, ugly boats, pretty boats, speed boats, fun boats, unfun boats, amazingness boats! i luv boats! i own a boat!!there are sail boats row boats speed boats paddle boats
Various types of boats traveled on the Nile River, including papyrus reed boats, which were lightweight and used for fishing and transport. Larger wooden vessels, such as cargo ships, were employed for transporting goods and people. Additionally, ceremonial boats were used in religious processes and festivals. The design and construction of these boats evolved over time, reflecting advancements in technology and changes in trade and transportation needs.