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Wirtschaftsbetrieb Mainz (AÖR)
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Keeping your home dry: heavy rain prevention in Mainz

Thunderstorm at the cathedral

Joint task of heavy rain prevention

If more rain falls in a very short period of time than the underground sewer system can handle, flooding can occur even far from major bodies of water. What makes this particularly tricky is that the exact location and timing of such heavy rain events are virtually impossible to predict. 

This makes preparedness essential! In public areas, Wirtschaftsbetrieb Mainz implements measures on behalf of the City of Mainz and keeps the sewer system and waterways in good working order at all times.

On private properties, the respective owners are responsible—but they also receive support from Wirtschaftsbetrieb Mainz through the development of heavy rain management plans for individual city districts, as well as tailored advice and information. 

What can I do to protect my property?

Heavy rain in Mainz
  • You can use the heavy rain prevention plans, the HydroZwilling RLP (opens in a new tab) system, and the RLP water portal (opens in a new tab) to check the extent to which your property is located in a risk area, for example due to the slope, etc. 
  • On this page, you will find the completed heavy rain prevention plans as well as further tips and information.
  • Our experts will be happy to visit you for a personalized consultation, completely free of charge. Simply make an appointment by calling 06131 - 9715 301 or sending an email to wirtschaftsbetrieb.mainzstadt.mainzde.

Heavy rain prevention concepts for the Mainz districts

Handover of funding decisions for Ebersheim and Finthen

In 2023, Wirtschaftsbetrieb Mainz, on behalf of the city and with funding from the Rhineland-Palatinate MINISTRY OF CLIMATE PROTECTION, ENVIRONMENT, ENERGY, AND MOBILITY, began developing heavy rain management plans for the individual city districts.

To this end, we are working with the respective district leaders and advisory boards to identify potential sources of risk. Based on the results, measures will be developed to determine how and where water can be drained to minimize damage as much as possible.

Before they are finalized, the heavy rain management plans will be presented at town hall meetings in the respective districts and discussed with residents. The final heavy rain management plans will then be available for free download on our website and will be presented at the Mainz Environmental Store.&Mainz Environmental Store

We began with Ebersheim and Finthen; the districts of Drais, Hechtsheim, and Marienborn will follow in 2026. 

Ready-made heavy rain prevention concepts & further downloads

Explanations and notes

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