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Rhine · km 780
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Gauge Duisburg-Ruhrort is on the Rhine at kilometre 780, on the km 763–794 stretch. The GlW is 227 cm and the fairway depth maintained below it (TuGlW) is 280 cm; after deducting 30 cm of safety margin the official rule of thumb comes out at Duisburg-Ruhrort +23. In practice Duisburg-Ruhrort +20 is used here, -3 cm against the official rule. At high water Marke I is at 930 cm and Marke II — above which the waterway closes — at 1130 cm. This gauge has 4 forecast sources: the 4-day forecast from Elwis (green), the 2-day forecast from the Hochwasserzentrale Rheinland-Pfalz (red), the 14-day forecast from the BAfG (yellow) and the 6-week forecast from the BAfG (blue, set the time range to 6 weeks to see it). Upstream lies Düsseldorf, downstream Wesel.
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