Gauge Koblenz (Mosel) — current water level and draft
Rhine · km 592
Measurement—cm
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Gauge Koblenz (Mosel) is on the Rhine at kilometre 592, on the km 592–601 stretch. The GlW is 77 cm and the fairway depth maintained below it (TuGlW) is 250 cm; after deducting 30 cm of safety margin the official rule of thumb comes out at Koblenz (Mosel) +143. In practice Koblenz (Mosel) +130 is used here, -13 cm against the official rule. This gauge has 3 forecast sources: the 4-day forecast from Elwis (green), the 2-day forecast from the Hochwasserzentrale Rheinland-Pfalz (red) and the 14-day forecast from the BAfG (yellow). Upstream lies Koblenz, downstream Andernach.
Koblenz
It is often said (especially by a certain company that sells commercial depth charts and has an interest in this) that the official rule of thumb for Koblenz is only + 103 cm. However, this is only the case above the Moselle mouth where the Depth below GlW (TuGlW) is 210 cm; below the Moselle mouth it is 250 cm, resulting in an official rule of thumb there of + 143 cm (see Hinweis Fahrinne). However, people often sail with + 130 cm, but just as well with + 160 cm, it just depends on how much of a hurry you are in. There are no major bottlenecks like the Deutzer Platte, but rather very long shallow stretches where meeting other traffic can draw away just a little too much water if they don't adjust their speed a bit. See also the depth charts of the Dutch and German Rhine branches on pdf v20-08-2026.