Flood Investigation Report Banbury Road, Moreton Pinkney

Flood Investigation Report Banbury Road, Moreton Pinkney

D S A DAVID SMITH ASSOCIATES Consulting Structural & Civil Engineers London Northampton Cirencester www.dsagroup.co.uk FLOOD INVESTIGATION REPORT BANBURY ROAD, MORETON PINKNEY th 9 MARCH 2016 Client: Flood & Water Management Team Planning Services Northamptonshire County Council County Hall, Room 271, Northampton NN1 1DN Prepared By: Richard Jones Date: 19th September 2016 Reference: 16/22404 Revision: 03 VAT Registration No.: 670 8636 12 Eur Ing David Smith BSc(Hons), CEng, MICE, MIStructE, IMaPS, MFPWS, FCABE, ACIArb, Alison Smith Hitesh Jethwa BScEng(Hons), I.Eng, AMIStructE Steven Ainge BEng(Hons), IEng, AMIStructE Richard Jones HNC, TMICE, Eng.Tech, John Mills MA(Cantab), CEng, MICE, MIStructE London Northampton Cirencester 16 Upper Woburn Place 8 Duncan Close Moulton Waterloo House London Park Northampton NN3 The Waterloo WC1H 0AF 6WL Cirencester GL7 2PY 0203 7418098 01604 782620 01285 657328 [email protected] [email protected] [email protected] REVISION SCHEDULE Northamptonshire County Council Flood Investigation Report Banbury Road, Moreton Pinkney David Smith Associates Reference : 16/22404 Rev Date Details Author Checked Approved 01 01/08/16 Draft Report Richard Jones Josie Bateman Josie Bateman (David Smith (Senior Project (Senior Project Associates) Manager Manager F&WM) F&WM) 02 08/08/16 Draft report for Richard Jones Josie Bateman Josie Bateman stakeholder consultation (David Smith (Senior Project (Senior Project Associates) Manager Manager F&WM) F&WM) 03 19/09/16 Revision following Richard Jones Josie Bateman Josie Bateman additional (David Smith (Senior Project (Senior Project information/consultation Associates) Manager Manager F&WM) F&WM) FOREWORD One of the roles of Northamptonshire County Council as the Lead Local Flood Authority (LLFA) is to carry out investigations into flooding incidents if they meet the set thresholds. The LFFA will: Identify and explain the likely cause/s of flooding; Identify which authorities, communities and individuals have relevant flood risk management powers and responsibilities; Provide recommendations for each of those authorities, communities and individuals; and Outline whether those authorities, communities or individuals have or will exercise their powers or responsibilities in response to the flooding incident. The LLFA cannot: Resolve the flooding issues or provide designed solutions; or Force Authorities to undertake any of the recommended actions. 16/22404 Flood Incident Report Banbury Road, Moreton Pinkney CONTENTS EXECUTIVE SUMMARY ............................................................................................................................ 1 1. Introduction .................................................................................................................................... 3 1.1 Lead Local Flood Authority Investigation ................................................................................ 3 1.2 Flooding Incident .................................................................................................................... 4 1.3 Site Location ............................................................................................................................ 5 1.4 Drainage Systems .................................................................................................................... 6 2. Drainage History ............................................................................................................................. 7 2.1 Previous Flood Incidents ......................................................................................................... 7 2.2 Rainfall Analysis ...................................................................................................................... 8 3. Summary of Impacts and Findings .................................................................................................. 9 3.1 Areas of Flooding and Impacts ................................................................................................ 9 4. Conclusion ..................................................................................................................................... 10 5. Rights and Responsibilities............................................................................................................ 11 5.1 Communities and Residents ................................................................................................. 11 5.2 Lead Local Flood Authority (LLFA) ......................................................................................... 13 5.3 Highway Authority (Northamptonshire Highways) .............................................................. 13 5.4 Water Authority (Thames Water) (TW) ................................................................................ 14 5.5 South Northamptonshire Council (SNC) ............................................................................... 14 5.6 Environment Agency (EA) ..................................................................................................... 15 5.7 Land Owners and Developers ............................................................................................... 16 6. Recommendations ........................................................................................................................ 17 6.1 General .................................................................................................................................. 17 6.2 Communities and Residents ................................................................................................. 17 6.3 Lead Local Flood Authority (LLFA) ......................................................................................... 18 6.4 Highway Authority (Northamptonshire Highways) .............................................................. 19 6.5 Water Authority (Thames Water) (TW) ................................................................................ 19 6.6 South Northamptonshire Council (SNC) ............................................................................... 19 6.7 Environment Agency (EA) ..................................................................................................... 20 6.8 Land Owners and Developers ............................................................................................... 20 7. Disclaimer ...................................................................................................................................... 22 Acronyms .............................................................................................................................................. 23 Useful Links ........................................................................................................................................... 23 Useful Contacts ..................................................................................................................................... 24 16/22404 Flood Incident Report Banbury Road, Moreton Pinkney APPENDIX A ............................................................................................................................................. 1 Location Plan & Incident Plan ............................................................................................................. 1 APPENDIX B ............................................................................................................................................. 2 Flood Map for Planning ....................................................................................................................... 2 APPENDIX C ............................................................................................................................................. 4 Risk of Flooding from Surface Water .................................................................................................. 4 APPENDIX D ............................................................................................................................................. 6 Map of Main Rivers ............................................................................................................................. 6 APPENDIX E ............................................................................................................................................. 8 Environment Agency Standard Notice ................................................................................................ 8 APPENDIX F ............................................................................................................................................. 9 Parish Council photographs of Brook Street flood incidents, 1998, 2007, 2014. ............................... 9 APPENDIX G ........................................................................................................................................... 21 Parish Council photographs of Banbury Road flood incident 09/03/16. .......................................... 21 APPENDIX H ........................................................................................................................................... 26 Residents photographs of flood incidents on Brook Street 2007 & 2016 ........................................ 26 APPENDIX I ............................................................................................................................................ 35 Photographs from flood incident

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