Sustainable Flood Risk Management

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Presentation by David Green of the Scottish Borders Council given at the World Water Day workshop, organised by University of Dundee, on 22 March 2010

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Sustainable Flood Risk Management

  1. 1. WORLD WATER DAY MONDAY 22 ND MARCH 2010 Presentation on: Scottish Borders Council’s Flood Protection Programme in Relation to Sustainable Flood Risk Management By David Green – SBC – Programme Manager
  2. 2. SCOTTISH BORDERS COUNCIL’S – FLOOD PROTECTION PROGRAMME Purpose of this Presentation: <ul><li>To outline the statutory duties of a Scottish Local Authority with respect to the Flood Risk Management (Scotland) Act 2009 </li></ul><ul><li>To explain Scottish Borders Council’s current approach to flood risk management </li></ul><ul><li>To highlight the Council’s Flood Protection Programme in relation to sustainable flood risk management </li></ul><ul><li>To highlight the benefits to the Council of involvement in research projects such as the Eddleston Water Restoration – Scoping Study </li></ul>
  3. 3. SCOTTISH BORDERS COUNCIL’S – FLOOD PROTECTION PROGRAMME <ul><li>Water Environment and Water Services (Scotland) Act 2003 </li></ul><ul><li>Scottish Borders Council is a responsible authority under the 2003 Act </li></ul><ul><li>Flood Risk Management (Scotland) Act 2009 (FRM(S)A 2009) </li></ul><ul><li>Scottish Borders Council is a responsible authority under the 2009 Act with: </li></ul><ul><ul><li>General duty to reduce overall flood risk </li></ul></ul><ul><ul><li>Specific duty to undertake flood risk management planning </li></ul></ul><ul><ul><li>Specific duty to carry out clearance and repair work </li></ul></ul>Statutory Duties:
  4. 4. SCOTTISH BORDERS COUNCIL’S – FLOOD PROTECTION PROGRAMME <ul><li>Avoidance </li></ul><ul><ul><li>Planning policy </li></ul></ul><ul><ul><li>Development control </li></ul></ul><ul><ul><li>SUDS </li></ul></ul><ul><ul><li>Watercourse efficiency measures </li></ul></ul><ul><ul><li>Culvert trash screen maintenance and warnings </li></ul></ul><ul><li>Awareness </li></ul><ul><ul><li>Flood awareness campaigns </li></ul></ul><ul><ul><li>Local self help groups </li></ul></ul><ul><ul><li>Flood warning groups </li></ul></ul><ul><li>Alleviation </li></ul><ul><ul><li>Natural flood risk management </li></ul></ul><ul><ul><li>Flood protection works </li></ul></ul><ul><ul><li>Flood protection schemes (FPS) </li></ul></ul><ul><li>Assistance </li></ul><ul><ul><li>Subsidised flood protection products </li></ul></ul><ul><ul><li>Emergency response </li></ul></ul>Approach to Flood Risk Management:
  5. 5. SCOTTISH BORDERS COUNCIL’S – FLOOD PROTECTION PROGRAMME <ul><li>Three flood protection schemes being taken forward as phase I of Council’s implementation strategy </li></ul><ul><li>Scheme objectives include a requirement to: </li></ul><ul><ul><li>ensure solution is environmentally acceptable and sustainable and includes appropriate natural flood risk management measures in accordance with FRM(S)A 2009 </li></ul></ul><ul><li>New FRM(S)A 2009 is therefore already influencing the Council’s approach to: </li></ul><ul><li>Galashiels FPS </li></ul><ul><ul><li>future use of washlands to increase level of protection </li></ul></ul><ul><li>Selkirk FPS </li></ul><ul><ul><li>advanced sediment management works </li></ul></ul><ul><ul><li>opportunities associated with operation of Scottish Water infrastructure </li></ul></ul><ul><li>Hawick FPS </li></ul><ul><ul><li>Opportunities associated with disused reservoirs </li></ul></ul>Flood Protection Programme:
  6. 6. SCOTTISH BORDERS COUNCIL’S – FLOOD PROTECTION PROGRAMME <ul><li>Scottish Borders Council therefore has a desire to move to more sustainable solutions </li></ul><ul><li>Consequently it is co-operating with other agencies in taking forward studies, research and demonstration projects </li></ul><ul><li>These include: </li></ul><ul><ul><li>Craik NFM – Demonstration Site </li></ul></ul><ul><ul><li>Long Philip Burn – Sediment Management </li></ul></ul><ul><ul><li>Eddleston Water Restoration – Scoping Study </li></ul></ul><ul><ul><li>Bowmont/Glen Rivers – Flood Risk Management Study </li></ul></ul>Sustainable Flood Risk Management:
  7. 7. SCOTTISH BORDERS COUNCIL’S – FLOOD PROTECTION PROGRAMME <ul><li>The Problem </li></ul><ul><ul><li>Frequent flooding of homes due to deposition of sediment at bridges </li></ul></ul><ul><ul><li>Dredging of sediment was large maintenance burden </li></ul></ul><ul><ul><li>Dredging of sediment could have an ecological impact </li></ul></ul><ul><ul><li>Commercial felling of trees on steep slopes leaving land prone to erosion </li></ul></ul><ul><ul><li>Practice of heather burning to encourage grass growth </li></ul></ul>Long Philip Burn – Sediment Management
  8. 8. SCOTTISH BORDERS COUNCIL’S – FLOOD PROTECTION PROGRAMME <ul><li>The Strategy </li></ul><ul><ul><li>Control of sediments at source (long term) </li></ul></ul><ul><ul><li>Prevention of further degradation of incising river channels (medium to long term) </li></ul></ul><ul><ul><li>Introduction of an offline sediment basin </li></ul></ul>Long Philip Burn – Sediment Management
  9. 9. SCOTTISH BORDERS COUNCIL’S – FLOOD PROTECTION PROGRAMME <ul><li>Control at source through promotion of improved land management </li></ul><ul><ul><li>Riparian fencing </li></ul></ul><ul><ul><li>Reforestation of steep slopes with native species </li></ul></ul><ul><ul><li>Highlighting the negative aspects of heather burning </li></ul></ul>Long Philip Burn – Sediment Management
  10. 10. SCOTTISH BORDERS COUNCIL’S – FLOOD PROTECTION PROGRAMME <ul><li>Stabilisation of incising channel </li></ul><ul><ul><li>Engineered logjam </li></ul></ul><ul><ul><li>Log sills </li></ul></ul>Long Philip Burn – Sediment Management
  11. 11. SCOTTISH BORDERS COUNCIL’S – FLOOD PROTECTION PROGRAMME <ul><li>Abstraction of problematic sediments </li></ul><ul><ul><li>Designed to target detention of gravels and cobbles </li></ul></ul><ul><ul><li>15 year design life </li></ul></ul><ul><ul><li>Offline to limit impact on fish passage </li></ul></ul>Long Philip Burn – Sediment Management
  12. 12. SCOTTISH BORDERS COUNCIL’S – FLOOD PROTECTION PROGRAMME <ul><li>Direct flood alleviation benefits from the implementation of NFM measures </li></ul><ul><li>Experience of engaging with landowners to establish a mechanism for taking forward NFM </li></ul><ul><li>Evidence of the benefits of NFM </li></ul><ul><li>Feedback into major flood protection schemes </li></ul>Summary of Potential Benefits: The potential benefits to the Council arising from involvement in NFM studies, research and demonstration projects are:

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