Tool risk reduction measures
100 RISK REDUCTION MEASURES
Please note:
This catalogue contains 100 measures that can contribute to the mitigation of heavy rain risks. These measures are very diverse: they range from structural to non-structural measures and from small, easy-to-implement solutions to comprehensive conceptual approaches.
The catalogue was compiled from existing catalogues from all RAINMAN partner countries as well as from knowledge and experiences made in the project without claiming universal coverage and without having expert knowledge in each of the covered business areas. Sources for further information and good practice examples are provided for a large number of the included measures.
Use the selection feature to find measures that are applicable in the field of action that you are dealing with or search for key words you are looking for.
Please consider that heavy rain risk reduction measures work best, when they are strategically applied and cleverly combined under consideration of the local conditions. Go back to RISK REDUCTION MEASURES for further guidance.
Constructions for sediment and debris retention, (sediment capture ponds, wooden rakes, trash racks)
Sand and bedload traps are technical installations which are located instream or as bypass to water courses. In the event of flooding, they slow down the speed of the water and lead to controlled sedimentation of transported material. To prevent debris and timber from blocking water courses in forests and on agricultural land, wooden or metal rakes can also be installed in streams to retain carried material. Inlet rakes / trash racks are steel structures that prevent inlets to drainage systems from being clogged by debris. Such constructions are normally used near populated areas. All sediment and debris retention systems require constant inspection and maintenance.
Check out the RAINMAN good practice examples:
READ MORE:
- WBW Fortbildungsgesellschaft für Gewässerentwicklung mbH und Informations- und Beratungszentrum Hochwasservorsorge Rheinland-Pfalz (Ed.) (2013): Starkregen: Was können Kommunen tun? URL: https://www.hochwasser.baden-wuerttemberg.de/documents/43970/44031/WBW-IBH-Starkregenbroschuere_1_.pdf (25.03.2020): einfache Rechen im Wald zum Rückhalt von Ästen und Zweigen
- Bundesministerium für Land- und Forstwirtschaft, Umwelt und Wasserwirtschaft (Ed.) (2015): 1. Nationaler Hochwasserrisikomanagementplan [The first National Flood Risk Management Plan for Austria], URL: https://www.bmlrt.gv.at/wasser/wisa/hochwasserrisiko/rmp2015/risikomanagementplan/risikomanagementplan.html (22.06.2020): Schutz- Regulierungswasserbauten planen und errichten, Hochwasser- und Feststoffrückhalteanlagen
Sabine Scharfe, Saxon State Office for Environment, Agriculture and Geology