1. URBAN STREAM REHABILITATION

2. CASE STUDIES AESTHETICS SELECTION OF OBJECTIVES FOR REHABILITATION SCHEMES TECHNIQUES OF REHABILITATION SOCIAL APPRAISAL TOOLS FOR ASSESSING POTENTIAL INDICATORS OF SUCCESS URBANSTREAMREHBILITATION BENEFITS / IMPACTS INTRODUCTION, OBJECTIVES & IMPACTS OPTIONS FOR REHABILITATION SITE MONITORING

3. INTRODUCTION, OBJECTIVES AND IMPACTS

4. Cropland, Animals Rural homes Suburban development Industrial development Urban 1. Introduction, objectives & impacts Development of the urban areas

5. Early Civilisation - Living in Nature – River banks free to move and water may flood and water may flood Phases in Unsustainable Urban Development Living in caves Danger in nature 1. Introduction, objectives & impacts

6. Early Civilisation - Living in Nature - Low Level of Pollution Phases in Unsustainable Urban Development Living in caves Defecation in nature 1. Introduction, objectives & impacts

7. Moving to Streams - Beginning of Conflicts Phases in Unsustainable Urban Development Dangers in nature 1. Introduction, objectives & impacts Flood Erosion

8. Moving to Streams - Beginnings of Pollution Phases in Unsustainable Urban Development Defecation in nature Garbage 1. Introduction, objectives & impacts

9. Uncontrolled Urbanisation (Occupation) of Flood Plain Streams as Recipients of Solid & Liquid Wastes Problems with flooding and banks fixing Phases in Unsustainable Urban Development Liquid & Solid waste Defecation in nature 1. Introduction, objectives & impacts Bank protection

10. Liquid & Solid waste Channelisation of Urban Streams Recipients of Solid & Liquid Wastes - Wastes & Stormwater Problems with Flooding & Clogging Phases in Unsustainable Urban Development 1. Introduction, objectives & impacts

11. Sewers Connected to Channelised Streams Phases in Unsustainable Urban Development 1. Introduction, objectives & impacts Houses in Flood Prone Area

12. Uncontrolled Urbanisation in the Upper Parts of a Stream Building of Separate Sewers - Problem of Inlet Clogging Phases in Unsustainable Urban Development 1. Introduction, objectives & impacts

13. Renaturalisation of Urban Streams Back to Nature Phases in Unsustainable Urban Development 1. Introduction, objectives & impacts

14. Renaturalisation of Urban Streams Back to Nature…

15. 1. Introduction, objectives & impacts Natural conditions BALANCE Freedom coping water and sediment flow NO BALANCE or

16. 1. Introduction, objectives & impacts Natural conditions Freedom coping water and sediment flow Action to correct

17. 1. Introduction, objectives & impacts Freedom coping water and sediment flow IMBALANCE !

18. 1. Introduction, objectives & impacts Natural conditions BALANCE Self-sustaining coping capacity

19. 1. Introduction, objectives & impacts Point source Pollution Pollution SELF-PURIFICATION Self-sustaining coping capacity

20. 1. Introduction, objectives & impacts BALANCE Self-sustaining coping capacity Point source Pollution Pollution Self purifying (coping capacity potential)

21. 1. Introduction, objectives & impacts Point source Pollution Pollution Self-sustaining coping capacity Self purifying (coping capacity potential) WASTE WATER TREATMENT

22. 1. Introduction, objectives & impacts Self-sustaining coping capacity Point source Pollution Pollution Self purifying (coping capacity potential) Waste water treatment BALANCE

23. 1. Introduction, objectives & impacts Self-sustaining coping capacity Point source Pollution Pollution Self purifying (coping capacity potential) Waste water treatment Diffuse source Pollution Pollution SELF-PURIFICATION

24. 1. Introduction, objectives & impacts BALANCE Self-sustaining coping capacity Point source Pollution Pollution Self purifying (coping capacity potential) Waste water treatment Diffuse source Pollution Pollution Self purifying (coping capacity potential)

25. 1. Introduction, objectives & impacts Self-sustaining coping capacity Point source Pollution Pollution Self purifying (coping capacity potential) Waste water treatment Diffuse source Pollution Pollution Self purifying (coping capacity potential) ?

26. 1. Introduction, objectives & impacts Self-sustaining coping capacity Point source Pollution Pollution Self purifying (coping capacity potential) Waste water treatment Diffuse source Pollution Pollution Self purifying (coping capacity potential) IMBALANCE !

27. 1. Introduction, objectives & impacts IMBALANCE ! Degradation of aquatic environment Degradation of ecology Self-sustaining coping capacity Freedom coping water and sediment flow Flood risks

28. 1. Introduction, objectives & impacts Rehabilitation objectives REHABILITATION Improvement of the river statein: Improvement of the river state in: Physical characteristics Chemical quality Ecological diversity Aesthetical appearance ? Flood risk

29. 1. Introduction, objectives & impacts REHABILITATION Improvement of the river statein: Improvement of the river state in: Creation of habitats for bio-diversity Aesthetics (Amenities) Social improvement Maintenance cost Rehabilitation objectives ?

30. 1. Introduction, objectives & impacts Rehabilitation impacts REHABILITATION The main benefits are: Social benefits Aesthetic benefits Nature Safety

31. 1. Introduction, objectives & impacts More info… For more information follow this link: