How at risk am I? - Flooding can be simulated - New Digital Portal Transforms Flood Preparedness in Rhineland-Palatinate

A new digital tool is helping residents and local authorities in Rhineland-Palatinate prepare for floods. The HydroTwin Rhineland-Palatinate portal, launched in December 2023, provides detailed risk assessments and interactive simulations. Homeowners can now check vulnerabilities and plan emergency routes, while municipalities use the system to improve disaster response and urban planning.

The portal combines digital terrain models, land-use data, and hydrological records to create accurate flood simulations. Users simply enter an address to see flow directions, projected water levels, and colour-coded risk zones. Interactive 3D maps allow anyone to explore potential flood scenarios at any location.

By the end of 2024, the system will expand to include river flooding simulations. Real-time data integration is set to follow by late 2027. From mid-2026, the Flood Competence Center will also offer individual building risk assessments, with initial checks free of charge.

Development of the portal cost around eight million euros over six years. This covered new surveys of at-risk waterways and technical upgrades. As of December 2023, over half of municipal associations, 60% of districts, and all major district-affiliated cities have access. Local authorities are already using the tool to adjust rescue routes and drainage planning.

Municipalities rely on the simulations to speed up decision-making and refine emergency plans. While exact adoption numbers for specific flood protection measures remain undisclosed, the portal is now widely available across the state.

The HydroTwin Rhineland-Palatinate portal gives residents and officials clearer insights into flood risks. Free initial assessments and expanded simulations will arrive in the coming years. The system aims to reduce damage and improve preparedness by making critical data easily accessible.