50th International Symposium on Hydraulic Engineering Aachen 2020

Heavy rainfall and flash floods in urban areas

9th / 10th January 2020

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conference papers

The conference proceedings from the previous symposia are available here.


In the past two decades, formerly simple flood protection has developed into complex flood risk management. Expert’s and public’s focus of this evolution is specifically relevant to the flood events in rivers. This development was triggered in Germany by the flood incidents at Rhine (1993 and 1995), Oder (1997), and Elbe (2002 and 2013). Although there is still a great need for action in the field of flood risk management, nowadays the main focus is the fight against floods. The focus is progressively moving towards heavy rainfall and flash floods.

Heavy rainfalls and resulting flash floods can potentially hit any region and are independent of the location to larger watercourses. In recent years heavy precipitation events hit cities like Dortmund (2008), Münster (2014) and Aachen (2018). But also internationally, heavy rainfalls, such as for example the cyclone Idai in Mozambique, Zimbabwe, and Malawi (2019), flooded entire areas of the countries with heavy precipitation.

The most crucial issue heavy precipitation causes is that at the point of impact everyone is endangered and even small thunderstorm cells can lead to severe local floods with high damages. Thus, classic flood protection concepts cannot simply be transferred to protection against heavy precipitation events. Climate models point to a stronger trend for extreme events. For the future, this might lead to an increased frequency and intensity of heavy rainfall events resulting in high damage.


TZA Technology Centre Aachen

Dennewartstr. 25-27
52068 Aachen

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Location map

Evening event

For the evening of 9th January 2020 we plan a social get-together in the Katholische Hochschulgemeinde (Pontstraße 72, 52062 Aachen) OpenStreetMap. Tickets can be purchased during the coffee breaks at our conference office (foyer TZA).

Non-binding registration for the symposium

The registration is currently closed.


Elisa Classen

organization, exhibitors
Fon: +49 (0) 241 80 25760
Fax: +49 (0) 241 80 25750
Email: iwasa@iww.rwth-aachen.de

Christiane Eichmanns

organization, presentations, chair
Fon: +49 (0) 241 80 25264
Fax: +49 (0) 241 80 25750
Email: iwasa@iww.rwth-aachen.de


Univ.-Prof. Dr.-Ing. Holger Schüttrumpf
Institute of Hydraulic Engineering and Water Resources Management
Mies-van-der-Rohe-Strasse 17
52056 Aachen, Germany
Fon: +49 (0) 241 80 25263
Fax: +49 (0) 241 80 25750
Email: sekretariat@iww.rwth-aachen.de