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JBA Consulting Report Template 2015 Craven District Council Level 1 Strategic Flood Risk Assessment Final Report January 2017 Craven District Council Belle Vue Square Broughton Road SKIPTON BD23 1FJ JBA Project Manager Maxine Zaidman JBA Consulting South Barn Broughton Hall Skipton North Yorkshire BD23 3AE Revision History Revision Ref / Date Issued Amendments Issued to Initial Draft v2.0 - Amy Tawton (LPA) 22 September 2016 Final Report v1.2 Report structure revised, Amy Tawton (LPA) 31 October 2016 various changes following Digital copy only comments on draft report from CDC, Environment Agency and NYCC. Final Report v1.3 Update to include additional David Sykes (LPA) 27 January 2017 sites in development site Digital copy only assessment and additional data from Yorkshire Water. Contract This report describes work commissioned by David Smurthwaite, on behalf of Craven District Council, by a letter dated 2 June 2016. Craven District Council’s representatives for the contract were Henry Cumbers, Amy Tawton and David Sykes. Jacqui Wallace of JBA Consulting carried out this work. Prepared by .................................................. Jacqueline Wallace BSc MSc Senior Analyst Reviewed by ................................................. Michael Williamson BSc MSc EADA FRGS CGeog Chartered Senior Analyst Purpose This document has been prepared as a Final Report for Craven District Council. JBA Consulting accepts no responsibility or liability for any use that is made of this document other than by the Client for the purposes for which it was originally commissioned and prepared. JBA Consulting has no liability regarding the use of this report except to Craven District Council. 2016s4408 CDC Level 1 SFRA Final Report v1.3.1.docx i Acknowledgements JBA would like to thank all Craven District Council, Environment Agency, Yorkshire Water and United Utilities staff for their time and commitment to providing data and discussing the issues identified during the course of this study. Copyright © Jeremy Benn Associates Limited 2017 Carbon Footprint A printed copy of the main text in this document will result in a carbon footprint of 305g if 100% post- consumer recycled paper is used and 388g if primary-source paper is used. These figures assume the report is printed in black and white on A4 paper and in duplex. JBA is aiming to reduce its per capita carbon emissions. 2016s4408 CDC Level 1 SFRA Final Report v1.3.1.docx ii Executive Summary This Level 1 Strategic Flood Risk Assessment (SFRA) updates the previous Level 1 assessment for Craven District, which was undertaken as part of the North-West Yorkshire SFRA in 2010. Craven District Council (CDC) require this update to initiate the sequential risk-based approach to the allocation of land for future development needed for CDC's new Local Plan (due for submission in late 2016). The area within Craven District Council's boundary that falls within the Yorkshire Dales National Park is however excluded from the SFRA, as planning within the National Park is the responsibility of the National Park Authority. The Craven District is predominantly rural but includes a number of large settlements; Skipton, Settle, Ingleton, High and Low Bentham, Hellifield, Gargrave, Glusburn and Sutton-in-Craven. There are five main river systems; the rivers Greta, Wenning, Ribble, Aire and Wharfe, as well as The Leeds-Liverpool Canal. The SFRA utilises the most up-to-date flood risk information and has been carried out in line with the Government's latest flood risk and planning policy guidance, which includes the National Planning Policy Framework1 (NPPF) and Flood Risk and Coastal Change Planning Practice Guidance2 (FRCC-PPG). The main deliverables of the SFRA are: This report. The Development Site Assessment spreadsheets and accompanying standalone report, detailing the risk to each site with recommendations on development (Appendix A). The detailed interactive GeoPDF maps showing key flood risk information together with the preferred development sites (Appendix B). The SFRA has achieved the following: It provides an understanding of flood risk from all sources and identifies the extent and severity of flood risk across the district. This assessment will enable CDC to steer development away from areas where flood risk is considered greatest, ensuring that development is undertaken in a safe, cost effective and sustainable manner. It makes recommendations on the suitability of preferred development sites, based on flood risk, for CDC's new Local Plan. It considers surface water flood risk, using the Environment Agency’s latest surface water map, Risk of Flooding from Surface Water (RoFSW). It provides a reference document (this report) to which all parties involved in development planning and flood risk can reliably turn to for initial advice and guidance; CDC planning officers, developers and North Yorkshire County Council in their role as Lead Local Flood Authority (including for consultation on planning applications for the approval of SuDS schemes). It enables CDC to meet its obligations under the National Planning Policy Framework (NPPF). It supplements current policy guidelines and provides a straightforward risk based approach to development management in the area. It also provides guidance on the potential risk of flooding associated with future planning applications and the basis for site-specific Flood Risk Assessments (FRAs) where necessary. It contributes to the evidence base and informs the Sustainability Appraisal (incorporating the Strategic Environmental Assessment) for CDC’s new Local Plan. Land required for current and future flood management that should be safeguarded as set out in the NPPF has been identified. Advice is given on the applicability of Sustainable Drainage Systems (SuDS) for managing surface water runoff. It has assisted CDC in identifying specific locations where further and more detailed flood risk data and assessment work is required as part of a Level 2 SFRA or site-specific FRA, prior to the allocation of specific developments. 1 http://planningguidance.planningportal.gov.uk/blog/policy/ 2 http://planningguidance.planningportal.gov.uk/blog/guidance/flood-risk-and-coastal-change/ 2016s4408 CDC Level 1 SFRA Final Report v1.3.1.docx iii CDC provided a list of preferred development sites which had been derived from the Strategic Housing and Employment Land Availability Assessment. An assessment has been made of flood risk to all of CDC's latest preferred development sites, as well as CDC's net developable areas, to assist the council in the decision making process for sites to progress as part of the new CDC Local Plan. A number of preferred development sites are shown to be at flood risk from fluvial, tidal and surface water sources. The following table summarises the number of sites at risk from each Flood Zone as per the Environment Agency's Flood Map for Planning (February 2016). Number of preferred development sites at risk from Environment Agency Flood Zones Preferred Development Sites Number of sites within… Flood Zone 2 Flood Zone 3a Flood Zone 3b Housing 18 12 2 Employment 4 2 1 Mixed use 3 3 2 TOTAL 25 17 5 Recommendations have been made for each development site at risk which fall under the following categories; Consider withdrawing the site based on level of flood risk; Exception Test required if site passes Sequential Test; Consider site layout and design if site passes Sequential Test; Site-specific FRA required; and Site permitted on flood risk grounds due to no perceived risk, subject to consultation with the LPA / LLFA. Out of the 80 sites provided for assessment by CDC, five are within or partially within the functional floodplain (Flood Zone 3b) delineated for this SFRA. Out of these five sites, two are recommended for withdrawal where the level of risk is considered too great for development to proceed. There is one site that is recommended for withdrawal based on significant surface water flood risk. Further details are given in the Development Site Assessment spreadsheets and accompanying standalone report in Appendix A. This SFRA has been produced using the latest flood risk data and information available at the time of publication. The reader is advised to confirm with CDC that the latest information is being used when decisions concerning development and flood risk are being made. The SFRA should be considered as a "live" document which can be updated as and when new information becomes available. If there is a significant flood affecting the area an immediate review should be undertaken. It is strongly recommended that the information in this SFRA is reviewed once the Skipton FAS is completed and new flood risk information available from the accompanying modelling study. It should also be updated once Environment Agency river models have been updated for the newly released climate change allowances. In the meantime, all site-specific flood risk assessments should consider the new Environment Agency climate change allowances. The SFRA report is comprised of two parts; Part 1 discusses the SFRA analysis which is specific to the CDC area. Part 2 outlines the more generic policy information forming the background to the SFRA. 2016s4408 CDC Level 1 SFRA Final Report v1.3.1.docx iv Contents Executive Summary ............................................................................................................ iii Part 1: Flood Risk in Craven ............................................................................................... 1 1 Introduction
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