Categories > manmade features > hydrographic structures
canals
Artificial waterways with no flow or a controlled flow used for navigation (canal), or for draining or irrigating land (ditch). [USGS Circ 1048]
This category is also used for canal bends, canalized streams, ditch mouths, ditches, drainage canals, drainage ditches, drains (channels), flumes (manmade), irrigation canals, irrigation ditches, irrigation systems, laterals, navigation canals, and underground irrigation canals