Newcastlegateshead Surface Water Management Plan
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- Water Gateshead & Newcastle Councils December 2011 NewcastleGateshead Surface Water Management Plan Identifying Areas at Risk Final Report Prepared by: Christian Lomax Checked by: Daniel Alstead Principal Consultant Consultant Approved by: Roy Lobley Associate Director Rev No Comments Checked by Approved Date by 0 Draft Report DJA VH Aug 2011 1 Draft Final Report DJA RL Sept 2011 2 Final Report DJA RL Dec 2011 5th Floor, 2 City Walk, Leeds, LS11 9AR Telephone: 0113 391 6800 Website: http://www.aecom.com Job No 60198244 Reference SWMP Stage 3 Date Created December 2011 This document has been prepared by AECOM Limited for the sole use of our client (the “Client”) and in accordance with generally accepted consultancy principles, the budget for fees and the terms of reference agreed between AECOM Limited and the Client. Any information provided by third parties and referred to herein has not been checked or verified by AECOM Limited, unless otherwise expressly stated in the document. No third party may rely upon this document without the prior and express written agreement of AECOM Limited. Table of Contents Abbreviations ........................................................................................................................................................................... i Glossary .................................................................................................................................................................................. ii 1 Introduction................................................................................................................................................................ 5 1.1 What is a Surface Water Management Plan? ................................................................................................... 5 1.2 SWMP Partnership .......................................................................................................................................... 5 1.3 Scope of the NewcastleGateshead SWMP ....................................................................................................... 8 2 SWMP Analysis ........................................................................................................................................................ 11 2.1 Phase 1: Preparation ..................................................................................................................................... 11 2.2 Phase 2: Risk Assessment ............................................................................................................................ 11 2.3 Phase 3: Options .......................................................................................................................................... 22 2.4 Phase 4: Implementation and Review ............................................................................................................ 26 3 Key Findings & Action Plan ..................................................................................................................................... 29 3.1 Surface Water Flood Risk .............................................................................................................................. 29 3.2 Managing Surface Water ............................................................................................................................... 30 3.3 Action Plan ................................................................................................................................................... 32 3.4 Going Forward .............................................................................................................................................. 33 4 Funding for Surface Water Management ................................................................................................................. 38 4.1 Introduction ................................................................................................................................................... 38 4.2 Local Authorities ........................................................................................................................................... 38 4.3 Business ....................................................................................................................................................... 39 4.4 Community Self Help ..................................................................................................................................... 39 4.5 Resistance and Resilience Measures............................................................................................................. 41 5 Summary .................................................................................................................................................................. 44 5.1 Surface Water Principles ............................................................................................................................... 44 5.2 Actions ......................................................................................................................................................... 45 List of Appendices Appendix A – Gateshead Hotspots Priority Matrix .................................................................................................................... 46 Appendix B– Newcastle Hotspots Priority Matrix ...................................................................................................................... 48 Appendix C – Gateshead Hotspot Data Sheets ........................................................................................................................ 50 Appendix D– Newcastle Hotspot Data Sheets ........................................................................................................................ 107 List of Tables Table 1.1: Roles & Responsibilities ............................................................................................................................................7 Table 2.1: Weighting Applied to Prioritise Hotspots .................................................................................................................. 20 Table 2.2: Top Ten Hotspots for Gateshead ............................................................................................................................. 21 Table 2.3: Top Ten Hotspots for Newcastle.............................................................................................................................. 22 Table 2.4: 18 Hotspots Identified by the Partners ..................................................................................................................... 23 Table 3.1: Development sites that provide opportunities to manage the risk of surface water flooding ........................................ 31 Table 3. 2: Action Plan Categories ........................................................................................................................................... 32 Table 3.3: Flood Incident Register used by the Councils ........................................................................................................... 33 Table 3.4: Action Plan for the Gateshead and Newcastle ......................................................................................................... 34 List of Figures Figure 2.1: Records of Surface Water Flooding in Gateshead ................................................................................................... 13 Figure 2.2: Records of Surface Water Flooding in Newcastle .................................................................................................... 13 Figure 2.3: Gateshead Surface Water Hotspots ....................................................................................................................... 15 Figure 2.4: Newcastle Surface Water Hotspots ........................................................................................................................ 16 Figure 2.5: Topographic Catchments ....................................................................................................................................... 17 Figure 2.6: Sewer Drainage Areas ........................................................................................................................................... 18 Figure 2.7: Iterative Nature of SWMPs ..................................................................................................................................... 27 List of Photographs Photograph 1: Flooding on Eldon Square in 2010 .................................................................................................................. 126 Photograph 2: Flooding on Northumberland Street in 1913 .................................................................................................... 126 Photograph 3: Historic Flooding along Newgate Street in 2010 ............................................................................................... 134 Photograph 4: Historic Flooding along Newgate Street in 2010 ............................................................................................... 134 Photograph 5: Historic Flooding along Quayside in 2010 ........................................................................................................ 134 Photograph 6: Historic Flooding along Quayside in 2010 .......................................................................................................