Fokkens B. ECRR, Flood prevention and river restoration, Room for the river

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1. Changes in the natural environment of a river
2. Loss of floodplain surface in upper Rhine
3. “Ecological obstacles”
4. River restoration ready for the future?
5. Restoring habitat connectivity

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Fokkens B. ECRR, Flood prevention and river restoration, Room for the river

  1. 1. FLOOD PREVENTION AND RIVER RESTORATION ROOM FOR THE RIVER Bart Fokkens Chairman European Centre for River Restoration21-11-2011
  2. 2. CHANGES IN THE NATURAL ENVIRONMENT OF A RIVER WWF6 ECRR Seminar21-11-2011 2 Ljubljana 16-18 November 2011
  3. 3. LOSS OF FLOODPLAIN SURFACE IN UPPER RHINE 100% 80% loss due to dike construction works (Honsell/Tulla) 60% loss due to erosion (Basel-Breisach) loss due to construction works until Iffezheim 40% remained floodplain 20% 0% 1800 1820 1840 1860 1880 1900 1920 1940 1960 1980 2000 WWF6 ECRR Seminar21-11-2011 3 Ljubljana 16-18 November 2011
  4. 4. “ECOLOGICAL OBSTACLES” WWF6 ECRR Seminar21-11-2011 4 Ljubljana 16-18 November 2011
  5. 5. RR READY FOR THE FUTURE ?• Design rivers for the future with respect for the past• Multidisciplinary, adaptive approach, acceptance of non-stationary• Public involvement, social processes and interactions important with increased scale• Multi-criteria analysis, cost benefit analysis and economic evaluation• Adequate (long-term) multi-level monitoring WWF6 ECRR Seminar21-11-2011 5 Ljubljana 16-18 November 2011
  6. 6. EU AND “IWRB”• Prevent deterioration and achieve a good ecological status• Work with the river and not against it• From sector & technical to integral & natural• From river basin to local scale• Participatory planning• Socio-economic analyses 09/12/2009 Basin Branch Floodplain Ecotope WWF6 ECRR Seminar 21-11-2011 6 Ljubljana 16-18 November 2011
  7. 7. RESTORING HABITAT CONNECTIVITY WWF6 ECRR Seminar21-11-2011 7 Ljubljana 16-18 November 2011
  8. 8. RESTORATION MEASURES WWF6 ECRR Seminar21-11-2011 8 Ljubljana 16-18 November 2011
  9. 9. MITIGATION MEASURES WWF6 ECRR Seminar21-11-2011 9 Ljubljana 16-18 November 2011
  10. 10. LOST ROOM FOR RHINE AND MEUSE WWF6 ECRR Seminar21-11-2011 10 Ljubljana 16-18 November 2011
  11. 11. FLOOD RISK MANAGEMENT RHINE RIVER WWF6 ECRR Seminar21-11-2011 11 Ljubljana 16-18 November 2011
  12. 12. NEAR FLOODINGS 2003 / 2005 WWF6 ECRR Seminar21-11-2011 12 Ljubljana 16-18 November 2011
  13. 13. DIKE STRENGTHENING ? WWF6 ECRR Seminar21-11-2011 13 Ljubljana 16-18 November 2011
  14. 14. ROOM FOR THE RIVER PRGRAMME WWF6 ECRR Seminar21-11-2011 14 Ljubljana 16-18 November 2011
  15. 15. GOALS AND CONDITIONS• Safety: stabilizing critical water levels despite increase of design discharge of 1000 m3/s• Increase of spatial quality: – Socio-economic value – Ecological value – Aesthetic/ cultural value – Sustainability• Implementation in partnership between national and regional authorities• Completion deadline: 2015• Put 2015 plan in perspective of long-term vision (2050+)• Strictly limited budget16-18 Novemberbillion Euros21-11-2011 Ljubljana of 2.2 2011 WWF6 ECRR Seminar 15
  16. 16. TOOLBOX OF MEASURES (green = best potential for ecological restoration)• Inside existing floodplain • Outside existing floodplain – Riverbed deepening – Detention areas – Groin improvement – Bypasses/ ‘green rivers’ – Creating side-channels – Widening of floodplain by – Removing obstacles replacement of dikes or – Strengthening of dikes (final depoldering option if no room available at reasonable costs) Selection of measures based on: cost-effectiveness, contribution to spatial quality and administrative/political feasability WWF6 ECRR Seminar21-11-2011 16 Ljubljana 16-18 November 2011
  17. 17. DECISION MAKING PROCESS RHINE RIVER regional design workshops with measures from long-term stakeholders survey 2003:600 individual measures Discussion- Analysis,and decision- discussion and support 13 strategies negotiation 5 alternatives + extra modules Quantity Assessment of alternatives Quality 2005:preferred alternative 2007:Approval by parliament = PLAN WWF6 ECRR Seminar 21-11-2011 18 Ljubljana 16-18 November 2011
  18. 18. PROGRAMMATIC APPROACHAlternative measures could be developed bypartners until summer 2008 within strict limits of:• Political and Public support• Effectiveness (safety + spatial quality)• Within available budget or provide extra• Completed in 2015 WWF6 ECRR Seminar21-11-2011 19 Ljubljana 16-18 November 2011
  19. 19. RIVER RESTORATION: “ROOM FOR THE RIVERS” • National programme with various measures by 2015 • Flood alleviation and ecological restoration • Costs: 2.2 Billion Euros WWF6 ECRR Seminar 21-11-2011 20 Ljubljana 16-18 November 2011
  20. 20. BOTTLENECK NIJMEGEN WWF6 ECRR Seminar21-11-2011 21 Ljubljana 16-18 November 2011
  21. 21. WWF6 ECRR Seminar21-11-2011 22 Ljubljana 16-18 November 2011
  22. 22. ARTIST IMPRESSION WWF6 ECRR Seminar21-11-2011 23 Ljubljana 16-18 November 2011
  23. 23. FLOODPLAIN RESTORATION ARNHEM NLSatellite image 1995 WWF6 ECRR Seminar 21-11-2011 24 Ljubljana 16-18 November 2011
  24. 24. BIESBOSCH AREA WWF6 ECRR Seminar21-11-2011 25 Ljubljana 16-18 November 2011
  25. 25. ‘ROOM FOR THE RIVER’ NOORDWAARD From Google ‘Depoldering’ WWF6 ECRR Seminar21-11-2011 26 Ljubljana 16-18 November 2011
  26. 26. BIESCHBOS IN 1850 WWF6 ECRR Seminar21-11-2011 27 Ljubljana 16-18 November 2011
  27. 27. WWF6 ECRR Seminar21-11-2011 28 Ljubljana 16-18 November 2011
  28. 28. THANK YOU ! WWF6 ECRR Seminar21-11-2011 29 Ljubljana 16-18 November 2011

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