The Rhine River has reached record low water levels, halting most barge traffic south of Mainz. Freight rates have surged to record highs as navigation becomes increasingly restricted.
The critically low water levels on the Rhine River are disrupting vital European supply chains, impacting the transport of goods like coal, chemicals, and petroleum products, and leading to record-high freight costs. This situation highlights the vulnerability of inland waterway transport to climate change and drought conditions.
The Rhine River has experienced record low water levels, leading to a halt in most barge traffic south of Mainz, Germany. Navigation is increasingly restricted further north as water levels continue to fall, pushing freight rates from the Amsterdam-Rotterdam-Antwerp (ARA) hub to Rhine destinations to record highs.
The water gauge at Kaub, a critical bottleneck on the Rhine, registered 11cm on August 13. The Federal Waterways and Shipping Administration forecasts a further drop to 6cm by the weekend, which would represent another all-time low. At such levels, river transport from ARA to the Upper Rhine and Main River becomes nearly impossible, with only a few specialized barges able to pass through Kaub under extremely challenging conditions.
This situation effectively cuts off storage sites along the Main River, including Frankfurt, Hanau, and Aschaffenburg, as well as depots on the Upper Rhine in Karlsruhe, Mannheim, Kehl, and Basel, Switzerland, from the ARA hub. Shipping south of Kaub to Basel is also severely hampered by shallow water at the Maxau gauge.
Shipowners indicated that quoted spot freight rates for ARA-Karlsruhe cargoes are largely theoretical due to insufficient volumes to establish a reliable market price. However, the Argus rate for the ARA-Karlsruhe route has reached a record €215 per tonne. Urgent cargoes that still manage to reach the Upper Rhine via specialized vessels are commanding even higher lump-sum rates.
Most remaining transport is concentrated on the Lower Rhine, with Duisburg, Dortmund, and Neuss still accessible from ARA. However, several terminals in Cologne are already too shallow for regular operations. Water levels are also dropping on the Lower Rhine, with the Duisburg gauge at a historic low of 136cm. Barges can only reach Duisburg from ARA at approximately 15% of their capacity. If the Duisburg level falls below 130cm, inland shipping could be halted on parts of the Lower Rhine.
Forecasts offer little short-term relief, as expected local thunderstorms are unlikely to significantly raise river levels due to dry soil conditions. A sustained recovery would require widespread and prolonged rainfall across the entire Rhine basin.