Gartloch and Gartcosh Surface Water Management Strategy
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Water Glasgow City Council Dec 2011 North Lanarkshire Council Glasgow and Clyde Valley Green Network Partnership Gartloch and Gartcosh Surface Water Management Strategy Water Dec 2011 Prepared by: Hazel Smith Hydrologist Approved by: ................... Peter Robinson Regional Director Gartloch and Gartcosh Surface Water Management Strategy Approved Rev No Comments Checked by Date by Draft 1 PMR PMR 5th Sept Draft 2 PMR PMR 28 th Oct Final PMR PMR 1st Dec Final Page 29, number of units amended from 600 to 300 PMR PMR 20 th Dec 1 Tanfield, Edinburgh, EH3 5DA Telephone: 0131 301 8600 Website: http://www.aecom.com Job No: 60186328 Reference: M001.005 Date Created: Dec 2011 “This document has been prepared by AECOM Limited ("AECOM") 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 and the Client. Any information provided by third parties and referred to herein has not been checked or verified by AECOM, unless otherwise expressly stated in the document. No third party may rely upon this document without the prior and express written agreement of AECOM.” Executive Summary This report has been produced for the purpose of presenting a Surface Water Management Strategy (SWMS) for the Gartloch and Gartcosh area. The site encompasses c.24 km 2 located within the central belt of Scotland, within the boundaries of both Glasgow City Council and North Lanarkshire Council. Glasgow City Council, North Lanarkshire Council and Glasgow Clyde Valley Green Network Partnership have proposed creating a new Wetland Park within the study area, see Collective Architectures report 2011. A draft vision and masterplan for ‘The Seven Lochs Wetland Park’ has been published setting out proposal to: • create a new wetland park of both national and European significance, • to deliver, manage and sustain a high quality innovative wetland environment that will protect and enhance the biodiversity of the area as a national resource; and • promote the general health and wellbeing of both visitors and residents alike, and contributes to the environmental, economic and social regeneration of the area. There are currently plans for up to 4300 new homes within and around the Wetland Park area, including 6 Community Growth Areas. The development of the Wetland Park aims to integrate these new developments into the surrounding landscape through the creation of new green infrastructure and multi-functional green networks. This document sets out a Surface Water Management Strategy for future development in the Gartloch and Gartcosh area. The strategy aims to balance environmental constraints and opportunities within new development, and integrate development into the Wetland Park through the creation of new green infrastructure. It sets out key concepts for future surface water management in the area. The SWMS requires to attenuate future runoff to the undeveloped ‘Greenfield’ runoff rates and mitigate future climate change effects to prevent and increase flood risk downstream of the CGA’s. It follows the guidance and requirements set out in Scottish Planning Policy (SPP) and will meet the guidance of CIRIA 697 – The SuDS Manual, and Controlled Activity Regulations – The Water Environment (Controlled Activities) (Scotland) Regulations 2005. The principles upon which a detailed Surface Water Management Plan (SMWP) for each CGA can be developed have been set out. Alongside this, ways of changing the adoption and maintenance approach to SuDS are discussed and a maintenance schedule in line with the SuDS manual is proposed. Consultation has been carried out with key client stakeholders including Glasgow City Council, North Lanarkshire Council and Glasgow and Clyde Valley Green Network Partnership, with data collection for the overall study including a wider range of authorities, regulators and relevant parties. The primary principles for the development and the design study process was to create exemplar infrastructure elements and base the design study process around the infrastructure. Establishing a more integrated approach to the design study process that looks at: • base line constraints on site; • exemplar infrastructure; and • Developing a plan around the above. Table of Contents 1 Introduction ....................................................................................................................................................................... 1 1.3 Proposed Development ......................................................................................................................................... 3 2 Current Planning Policy and Guidance ........................................................................................................................... 5 2.1 Introduction ............................................................................................................................................................ 5 2.2 Scotland ................................................................................................................................................................. 5 3 Surface Water Management Strategy .............................................................................................................................. 9 3.1 Strategic Approach ................................................................................................................................................ 9 4 Garthamlock .................................................................................................................................................................... 19 4.1 Facts and Figures ................................................................................................................................................ 19 4.2 Key Development Strategies ............................................................................................................................... 19 4.3 SuDS Strategy ..................................................................................................................................................... 19 5 Easterhouse North .......................................................................................................................................................... 21 5.1 Facts and Figures ................................................................................................................................................ 21 5.2 Key Development Strategies ............................................................................................................................... 21 5.3 SuDS Strategy ..................................................................................................................................................... 21 6 Easterhouse South ......................................................................................................................................................... 23 6.1 Facts and Figures ................................................................................................................................................ 23 6.2 Key Development Strategies ............................................................................................................................... 23 6.3 SuDS Strategy ..................................................................................................................................................... 23 7 Gartcosh .......................................................................................................................................................................... 25 7.1 Facts and Figures ................................................................................................................................................ 25 7.2 Key Development Strategies ............................................................................................................................... 25 7.3 SuDS Strategy ..................................................................................................................................................... 25 8 Glenboig ........................................................................................................................................................................... 27 8.1 Facts and Figures ................................................................................................................................................ 27 8.2 Key Development Strategies ............................................................................................................................... 27 8.3 SuDS Strategy ..................................................................................................................................................... 27 9 Gartloch Pools ................................................................................................................................................................. 29 9.1 Facts and Figures ................................................................................................................................................ 29 9.2 Key Development Strategies ............................................................................................................................... 29 9.3 SuDS Strategy ....................................................................................................................................................