Flood management in the Netherlands

1. Hans Oerlemans - hans.oerlemans@rpsgroup.com.au - t. 08 9211 3574 - m. 04 9904 91034
Dutch Floods
Flood Management in the Netherlands

2. 1. Historic context
2. Recent developments
approach & organisation
3. Two examples
Room for the River / Katwijk
4. Conclusion
Content

5. System of dykes and water boards

6. The Hague
Rotterdam
Amsterdam

9. Flood disasters in 20th century

10. Large scale land reclamation

11. Delta works

12. Protests against engineering

13. Building with nature

14. Organisation lessons of 1953

15. Smaller world, complexer government

16. Local
Dyke
section
National
EU
damage
prevention
flood
protection
framework
National gov. Province gov. Loc. council Water board

17. Tasks Waterboard

18. Rijkswaterstaat

19. Accelerated by almost floods 1993 & 1995

20. Need for new approach

21. Planning Toolkit

22. Planning Toolkit

23. One strategy

24. Programming measures

25. Parlement decision

26. Nijmegen

27. Overdiepse Polder

28. Veessen Wapenveld

29. Kampen

30. Weak links
Katwijk
Weak locations in the coast line

31. Collaboration
Province - regional planning
Water board - maintenance
Council - local quality
National - demand & budget

32. Storm surge level
Clearly communicate the issue
existing coastal protection line
weak area
new protection line

33. Dune
Dyke
Dyke-in-dune
Technically 3 possibilities

34. Spatial Quality 1 - Highly valued views of the sea

35. Spatial Quality 2 - Economic value of the short distance

36. Keep it narrow, then needs to be high

37. Keep it low, then needs to be wide

38. Additional qualities and tensions
biodiversity & ecological connection
shortage of parking seasonal or year-round shortage for sport & play

39. Scenario game with ALL stakeholders

40. Council adopted the basement parking

41. Various stages of further design, with more workshops

42. Worked out in a flood-safety-technical solution

43. Delta Committee 2

44. • Not disaster driven but anticipate
• Floods and water shortage
• Move with water, not against it
• Clear responsibilities
• Locked-in through laws and funds
• Do it together, collaboration is essential

45. Hans Oerlemans - hans.oerlemans@rpsgroup.com.au - t. 08 9211 3574 - m. 04 9904 91034
Dutch Floods
Flood Management in the Netherlands