Within the framework of the project, the solution of two or conditionally three of the six OPVPs in the Vipava basin, namely the OPVP Vrtojba — Šempeter pri Gorici, — OPVP Vipava, where the flood safety caused by the influx of Bela would be improved, and in the next phases of the project, the impact of Gacka and Vipava and the production of a comprehensive HHŠ for the entire Vipava basin will have to be resolved.