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Barnstaple Flood Defence Improvements. Phil Emonson, Principal Analyst 20 th April 2016. Contents. 2014-15 study Flood cells and existing defences Fluvial risk and tidal risk Discounted options Option 1 and 2 Effectiveness Costs 2015-16 study Works completed to date.
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Barnstaple Flood Defence Improvements Phil Emonson, Principal Analyst 20th April 2016
Contents • 2014-15 study • Flood cells and existing defences • Fluvial risk and tidal risk • Discounted options • Option 1 and 2 • Effectiveness • Costs • 2015-16 study • Works completed to date
Flood Defence options appraisal 2014-15
Existing Defences Embankment in Pilton Park Revetments along River Taw Tarka Trail and flood wall Floodplain storage Pilton Park Sheet piling Flood walls along River Yeo
Fluvial Flood Risk • 2015: Most risk is in Cells A and E • 2075: Big increase of risk in Cell B, and to a lesser extent A and E • 2115: Significant increase of risk in Cell B, and C
Tidal Flood Risk • 2015: Most risk is in Cell B • 2075: Big increase of risk in Cell B, and to a lesser extent A, C and E • 2115: Significant increase of risk in Cell B, C and E
Cost • Capital costs – including prelims and optimism
Outline of works • Works completed • Service searches, topographic survey and Ground Investigation scoping • Design concepts (for defences along Rolle Quay as well as Pilton Park) • Preliminary sizings, calculations and drawings • Preliminary Environmental Assessment (PEA) • Landscape and Visual Impact assessment • Works planned • Outline Water Framework Directive assessment • Supporting NDDC in outline plans for Pilton Park • Completion of concept drawings and visualisation • Stakeholder engagement • Reporting and identification of needs for further survey / assessment
Thank you Phil Emonson Principal Analyst, JBA Consulting philip.emonson@jbaconsulting.com