The stacked columns chart WW-R-3 ’Investments in flood protection – case study’ shows the investments in flood protection in million Euros by the state of Hesse for the years 2000 to 2021. The investments are divided into grants to local authorities for non-technical flood protection (2nd and 3rd order waters), grants to local authorities for technical flood protection (2nd and 3rd order waters), grants for conceptional preparatory work (1st order waters) and grants relating to technical flood protection (1st order waters). Overall, the investments decreased in the course of recent years. In 2005 they reached their highest point with more than 35 million Euros, while in 2021, they amounted to just under 18 million Euros. While grants to local authorities for technical flood protection (2nd and 3rd order waters) and the funding for measures regarding technical flood protection (1st order waters) have been decreasing significantly, grants to local authorities for non-technical flood protection (2nd and 3rd order waters) and the funding for conceptional preparatory work (1st order waters) have been increasing significantly. Grants awarded to local authorities for technical and non-technical flood protection accounted for the greatest annual share.