section_path: Types of artificial waterways
section_name: Types of artificial waterways
paragraph_text: Types of artificial waterways
  
  A navigation is a series of channels that run roughly parallel to the valley and stream bed of an unimproved river. A navigation always shares the drainage basin of the river. A vessel uses the calm parts of the river itself as well as improvements, traversing the same changes in height.
  
  A true canal is a channel that cuts across a drainage divide, making a navigable channel connecting two different drainage basins.