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 There are about 43 000 km long inland excess water drainage channels in Hungary dominantly on the areas at inland excess water risk. This is one of the reasons that while Hungary designated 869 river water bodies, out of them 255 water bodies are called channel.

In the WISE-WFD database there is no code to distinguish channel type river water bodies.  However, 255 river water bodies could be identified by their name as channel type water bodies.  Figure 8.6 illustrates examples of the channel types.