Low Water Levels on River Rhine Disrupts CargoA man sunbathes on the exposed riverbed on the Rhine near Kaub. “The Rhine’s low water levels are restricting inland shipping capacities and posing major challenges for logistics and supply chains,” chemicals firm Evonik Industries AG said Tuesday. Whether a barge can navigate in such low water can depend on how many propellers it has, and how heavily laden it is with goods. Water levels at Kaub have been dropping for months, with one barge owner already idling vessels as of late July. “A noticeable rise in water levels is unlikely before October,” Ralph Solveen, senior economist at Commerzbank, wrote in a note.