Artificial watercourse, i.e. made with the insertion of an artifact in natural or artificial materials, built for the purpose of supplying, irrigation, navigation, reclamation, etc. The path of each instance of this class is obtained by aggregating in an orderly manner, according to the direction of water flow if constant or according to a conventional homogeneous direction, water elements that represent its layout; in some cases, i.e. when the identification of the channel corresponds not so much to the identification of the infrastructure as to the name of the waters that follow a certain route according to adequate regulation methods at the intake points, the same water element can belong to several channel traces. A channel can be characterized by its wetted areas, if detectable. Channels that derive from or flow into natural water bodies must be adequately connected to the natural drainage network.
