A navigation is a series of channels that run roughly parallel to the valley and stream bed of an unimproved river. A … See more

Both navigations and canals use engineered structures to improve navigation:
• weirs and dams to raise river water levels to usable depths;
• looping descents to create a longer an… See more

There are two broad types of canal:
• Waterways: canals and navigations used for carrying vessels transporting goods and people. These can be subdivided into two kinds:
Those con… See more

Historically, canals were of immense importance to commerce and the development, growth and vitality of a civilization. In 1855 the Lehigh Canal carried over 1.2 million tons of anthracite coal; by the 1930s t… See more

Canals are built in one of three ways, or a combination of the three, depending on available water and available path:
Human made streams
• A canal can be created where no stream presently e… See more