Up to 240 million tonnes of bulk goods are transported per year via the German Federal waterways, which amounts to around 65 billion tonne-kilometres. This equals almost 75 per cent of the goods transport by railway in this country or about 14 million lorry journeys.
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It is still somehow alive in Germany https://bmdv.bund.de/SharedDocs/EN/Articles/WS/waterways-as-...
In the Netherlands it's even more. Seems like the Dutch wikipage on the subject is far more comprehensive to the English one: https://nl.m.wikipedia.org/wiki/Binnenvaart
Says over a quarter of freight goes by boot. Not surprising, seeing as how many small inland ports there are.