Proactive & efficient flood prevention

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Presentation transcript:

Proactive & efficient flood prevention Martin Gális

Floods Natural occurrence Types Coastal Fluvial (river) Pluvial (surface) Other: barrier, flash flood, landslide, accident

Prevention is better than cure 1 € invested saves at least 4 € avoided damage Let the water flood Urban planning Build infrastructure where necessary Tools (maps, plans, monitoring & warning)

Causes Rain  Climate change Human development Bad country management Insufficient flood management

Country management Urban country Agricultural land Forests Planning and building according to maps Less development in flood prone areas Rain retaining infrastructure Agricultural land Contour line plowing Green field boundaries Growing adequate crops Forests Forest is a rain retainer Clearcuts retain 50x less water Danger of flash floods

Flood infrastructure Where and what to build. Better planning could save 13 mil. € in damages in Slovakia yearly. Benefits vs. costs Green vs. technical infrastructure Mobile infrastructure Sustainable infrastructure Procurement and unit prices

Green infrastructure Hard to calculate the impact, but cheaper Other environmental benefits (Anti-erosion, biodiversity, ...) De-centralized Slowing water drainage Examples Floodplains reoccurrence Dry polder (semi-green) Infiltration ponds

Technical (grey) infrastructure Easy to predict water levels More expensive, more efficient Other benefits (Recreational, industrial, ...) Examples Dikes, levees Dam reservoirs River regulations

Financial solutions State and public money „User pays“ principle Fund Financial participation on prevention Insurance Local taxes Mandatory flood infrastructure on the property

Data Always push for data availability Actual, precise maps Place, time and cost of Flood events Existing infrastructure Planned infrastructure Research on flood causes

IEP Analytical unit at Ministry of Environment Projects Value for Money principle Evidence based policy making Projects Spending review in environment. Over 100 mil. € potential savings identified. Environmental state strategy till 2030 Low carbon strategy Circular economy Waste management Facebook (https://www.facebook.com/iep.mzp ) Web (http://www.minzp.sk/iep)