Flood Risk Management in Slovenia. Luka Stravs, M.Sc.

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1 Flood Risk Management in Slovenia Luka Stravs, M.Sc.

2 Flood Risk Management in Slovenia introduction, some publicly known data, some observations; EU Floods Directive implementation in Slovenia (PFRA, APSFRs, FHRMs, FRMP (methodology of the FRMP preparation, catalog of measures, CB method ); some good flood risk management practices in Slovenia (evode/ewater platform, Water Management Atlas, free and public LIDAR data distribution for Slovenia);

3 Flood damage data for Slovenia direct damages after larger flood events in the last 25 years: 1990 cca 580 mio EUR, 1998 cca 180 mio EUR, 2007 cca 200 mio EUR, 2009 cca 25 mio EUR, 2010 cca 190 mio EUR, 2012 cca 310 mio EUR and 2014 cca 255 mio EUR. last 25 years cca 1750 mio EUR (cca 2150 mio EUR); last 10 years cca 980 mio EUR (cca 1200 mio EUR): only direct damages included! quick estimation 150 mio EUR per year of flood related damages in Slovenia!

4 Flood damages in Slovenia

5 Flood damages in Slovenia

6 Flood damages in Slovenia

7 Flood damages in Slovenia

8 EU Floods Directive Implementation in Republic of Slovenia Premilinary Flood Risk Assessment done ( ), published ( ) and reported to EC ( ); Areas with Potential Significant Flood Risk 61 APSFRs identified ( ) and reported to EC ( ); Flood Hazard and Flood Risk Maps reported to EC ( ); Flood Risk Management Plan (work in progress).

9 Preliminary Flood Risk Assessment for Slovenia avne_ogrozenosti.pdf

10 61 APSFRs in Slovenia (42 APSFRs in the Sava River Basin / 51 APSFRs in the Danube River Basin)

11 PFRA data and APSFRs in Slovenia 61 APSFRs ( inhabitants, working places,...) approx. 50% of all potential flood damages 600 mio EUR (510 mio EUR for structural measures) = 4-5 years of damages

12 Kresnice APSFR - situation

13 Kresnice APSFR - situation

14 Kresnice APSFR Flood Hazard Q10 (publicly accessible flood hazard maps)

15 Kresnice APSFR Flood Hazard Q100 (publicly accessible flood hazard maps)

16 Kresnice APSFR Flood Hazard Q500 (publicly accessible flood hazard maps)

17 Publicly accessible flood risk maps (example for Ljubljana APSFR Q500)

18 Flood Risk Management Plan (61 APSFRs)

19 Flood Risk Management Plan (61 APSFRs grouped in 17 river basins)

20 Flood Risk Management Plan includes 17 mini FRMPs Savinja

21 Flood Risk Management Plan flood hazard and flood risk maps - Savinja

22 Flood Risk Management Plan

23 Flood Risk Management Plan

24 Flood Risk Management Plan

25 Flood Risk Management Plan flood risk reduction measures

26 Flood Risk Management Plan flood risk reduction measures

27 Flood Risk Management Plan flood risk reduction measures

28 FRMP Savinja River Basin flood risk reduction measures

29 FRMP Savinja River Basin flood risk reduction measures (details)

30 FRMP Savinja River Basin (NWRM)

31 FRMP Savinja River Basin (struct.)

32 FRMP Savinja River Basin (monit.)

33 FRMP Savinja River Basin projects (ideas, on-going ones, expected results)

34 FRMP Savinja River Basin FP projects for each basin (details)

35 FRMP Savinja River Basin FP projects for each basin (details) Examples: - DAMWARM (cca 3.5 mio EUR); - CRO SI CBC bilateral FP project (cca 12 mio EUR); - Gradaščica structural FP measures (cca 40 mio EUR); - Selška Sora structural FP measures (cca 21 mio EUR) - detailed mapping; -

36 FRMP CBA methodology COSTS - costs of the structural flood protection measures can be calculated (inclusion of annual maintanence and operation costs); COSTS - estimation of the costs of non-structural flood protection measures can be quite a difficult task ; BENEFITS - how to assess the benefits of the FP measures? structural methodology based on reduction of expected annual damage; non-structural - % of risk reduction approximations;

37 FRMP CBA methodology for the assessment of benefits of flood protection measures - elements at risk

38 FRMP CBA methodogy Expected annual damage before the implementation of the measure

39 FRMP CBA methodology implementing the measure

40 CBA mtdlgy benefit of the FP measure

41 Additional (re)sources (free & publicly accessible and downloadable) evode (ewater) web portal/platform; Atlas voda (Water Management Atlas); LIDAR data downloader (free!);

42 ewater portal (evode)

43 ewater portal (evode)

44 ewater portal (evode)

45 ewater portal (evode)

46 ewater portal (evode)

47 Water Management Atlas (Atlas voda)

48 Water Management Atlas (Atlas voda)

49 Water Management Atlas (Atlas voda)

50 Water Management Atlas (Atlas voda)

51 Free&public LIDAR data distribution (via or

52 Free&public LIDAR data distribution (via or

53 Free&public LIDAR data distribution (via or

54 Free&public LIDAR data distribution (via or

55 Some open issues for discussion during the workshop EU 7-year cycle financial pl , , , EU RBMP and FRMP 6-year cycle pl , , , is EU Floods Directive really just a daughter directive in relation to the EU Water Framework Directive? WFD measures can be in conflict with FD objectives of reducing existing flood risk as well! do we really need two management plans for the same river? (hint: integrated river basin management planning!)

56 Thank you for your attention!