Slightly rising water levels on the Rhine after rainfall – gauges remain below record lows

Background: Recurring low-water phases on the Rhine

Water levels on the Rhine have been a recurring issue for years. Dry summers in particular have repeatedly led to extreme low-water phases since 2018, disrupting logistics chains along the river. In recent weeks as well, shipping authorities and industry associations had warned of a situation as critical as in previous years.

In Rhineland-Palatinate too, the Rhine has been a defining topic for weeks. Lock operators, waterway and shipping offices, and the agencies responsible for the Kaub gauge are coordinating closely with industry to provide skippers with up-to-date assessments of navigability. Joachim Holstein, President of the BDB, had recently pointed repeatedly to the strains on the industry.

Comparison with 2018: Historic lows at the time

The comparison with 2018 is considered a benchmark among experts: back then, prolonged drought had driven gauges to historic lows, severely hampering shipping for weeks and forcing entire industrial operations to shift their supply chains to rail and road. The values now reported, while below the previous year's worst weeks, have still not reached normal levels.

Outlook: Further rainfall needed

According to the federation's assessment, no significant easing is in sight in the short term. While the recent rainfall has halted the downward trend and even caused a slight rise, the reported gauge values are still well below the levels needed for unrestricted navigation. Further precipitation would be required to noticeably improve the situation.

The BDB has for some time spoken of a worsening of the low-water problem with structural causes – from lacking winter precipitation and river engineering works to growing demands for larger vessel drafts. The current situation is seen as further evidence that the industry must prepare for more frequent and more intense low-water phases.

Effects are felt beyond shipping: ports, hauliers, and industry along the Rhine and Ruhr are also closely watching developments. Falling gauges can make transport more expensive, lengthen delivery times, and, in turn, influence prices for energy and building materials. The coming weeks, when less precipitation is usually expected, are therefore likely to set the direction for further developments in the transport situation on the Rhine.