SuDS in London - a guide

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Case study index The following case studies include local and strategic examples of SuDS to show the versatility of sustainable drainage in various contexts. Most are examples from London, but there are also exemplar national and international studies which may have some application in the Capital. They are described and ordered by size. London under 500m² 5.1 Priory Common 85 m² 5.2 Upminster Bridge swale 400 m² 5.3 Kenmont Gardens 435m² London under 2000m² 5.4 Derbyshire Street 765m² 5.5 Renfrew Close 900m² 5.6 Islington Town Hall 1000m² 5.7 Rectory Gardens 1000m² 5.8 Talgarth Road 1200m² 5.9 Mile End Green Bridge 2000m² London over 0.2ha 5.10 Queen Caroline Estate 0.23ha 5.11 Bridget Joyce Square 0.26ha 5.12 Crown Woods Way 0.26ha 5.13 Hackbridge 0.27ha 5.14 Goldhawk Road 0.27ha 5.15 Firs Farm 0.48ha 5.16 Salmons Brook 0.77ha 5.17 LuL depot roof, Middlesex 125m² 5.18 Coulsdon Bypass 34ha 5.19 London Sustainable Industries Park, Dagenham 142ha National & international 5.20 Great Kneighton/Clay Farm, Cambridge 109ha 5.21 Alnarp, Sweden 0.37ha 5.22 Benthemplein, Netherlands 0.95ha 5.23 Rue Garibaldi, Lyon, France15ha 5.24 Bo01, Malmö, Sweden 85ha 76 5 Case studies
5.1 Priory Common rain meadow Location Priory Common London Borough of Haringey Extent 85m² Cost £48,000 (construction only) Date 2016 Credits London Borough of Haringey Thames21 Robert Bray Associates SuDS components Filter strip Infiltration basin Channels Love the Lea campaign, Thames 21 Summary Green space enhancement and re-purposing for surface water interception and infiltration. Project description Next to Priory Road is a linear green space with mature plane trees planted along the roadside. The verge is about 75m long and was highlighted as a site to deal with surface runoff from the road, via a sewer connection directly to the River Moselle. This project is part of a suite of SuDS schemes locally that will cumulatively improve water quality. Objectives • Intercept road runoff pollutants at source and use the existing landscape to allow ‘interception loss’ (ie, prevent water from reaching the ground) for everyday rainfall • Clean and cool runoff during summer when the watercourse is most susceptible to the effects of pollution and water temperature increases (which inhibit the ability of water to carry dissolved oxygen) Priory Common after installation 77 5 Case studies
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SuDS in London - a guide November 2
Page 3 and 4:
Introduction
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II Who is the guidance for? Primari
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1 Principles of SuDS
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1.2 Wider benefits The ambition for
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1.3.1 Water quantity SuDS mitigate
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1.3.2 Water quality Surface water i
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1.3.4 Biodiversity London’s natur
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2.1 What is unique about London? Th
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Hampstead Ridge Valley Lea Valley L
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• Amenity/biodiversity: the natur
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2.7 Townscape Townscape is the mix
Page 25 and 26: 2.9 London’s green infrastructure
Page 27 and 28: 2.13 Archaeology London’s history
Page 29 and 30: 3 SuDS components
Page 31 and 32: A number of case studies illustrati
Page 33 and 34: 3.2 Structures Roofs and walls can
Page 35 and 36: Case study 1 - Structures Location
Page 37 and 38: 3.3 Infiltration systems London’s
Page 39 and 40: Case study 3 - Infiltration systems
Page 41 and 42: 3.4 Filter strips Filter strips are
Page 43 and 44: 3.6 Wet swales and dry swales Swale
Page 45 and 46: Case study 5 - Swale Location Mill
Page 47 and 48: Maintenance Channel systems require
Page 49 and 50: Case study 6 - Bioretention Locatio
Page 51 and 52: 3.9 Trees Trees in the hard landsca
Page 53 and 54: Street trees: biodiversity Where tr
Page 55 and 56: 3.10 Permeable paving Permeable pav
Page 57 and 58: Case study 9 - Permeable paving Loc
Page 59 and 60: 3.11 Detention basins Detention bas
Page 61 and 62: 3.12 Attenuation and storage tanks
Page 63 and 64: Design considerations Sedimentation
Page 65 and 66: 4 SuDS in London’s streets
Page 67 and 68: 4.2 Street scenarios Street scenari
Page 69 and 70: Street scenario 3 An important foca
Page 71 and 72: Street scenario 5 A well-connected
Page 73 and 74: Street scenario 7 A local shopping
Page 75: 5 Case studies
Page 79 and 80: 5.2 Upminster Bridge swale Location
Page 81 and 82: 5.3 Kenmont Gardens Location Kensal
Page 83 and 84: 5.4 Derbyshire Street Pocket Park L
Page 85 and 86: 5.5 Renfrew Close Location London B
Page 87 and 88: 5.6 Islington Town Hall Location Up
Page 89 and 90: 5.7 Rectory Gardens Location Hornse
Page 91 and 92: 5.8 Talgarth Road Location Talgarth
Page 93 and 94: 5.9 Mile End Green Bridge Location
Page 95 and 96: 5.10 Queen Caroline Estate Location
Page 97 and 98: 5.11 Bridget Joyce Square, Australi
Page 99 and 100: 5.12 Crown Woods Way Location Eltha
Page 101 and 102: 5.13 Hackbridge Location Hackbridge
Page 103 and 104: 5.14 Goldhawk Road Location Shepher
Page 105 and 106: 5.15 Firs Farm Wetlands Location Wi
Page 107 and 108: 5.16 Salmons Brook Glenbrook Stream
Page 109 and 110: 5.17 LuL depot roof, Middlesex Loca
Page 111 and 112: 5.18 A23 Coulsdon Bypass, Farthing
Page 113 and 114: 5.19 London Sustainable Industries
Page 115 and 116: 5.20 Great Kneighton / Clay Farm, C
Page 117 and 118: 5.21 Alnarpsgården Swedish Univers
Page 119 and 120: 5.22 Benthemplein (Water Square) Lo
Page 121 and 122: 5.23 Rue Garibaldi Location Lyon Fr
Page 123 and 124: 5.24 Bo01 Võstra Hamnen Location M
Page 125 and 126: 6 Implementation
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Kings Cross LWT: Camley Street A so
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6.3 Drainage hierarchy SuDS designs
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7 Cost benefit
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7.2 Methodology Cost benefit estima
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4.4 LANDSCAPE WATER MANAGEMENT STRA
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Appendices
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i-Tree Eco Project (2015) Valuing L
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Movement of water from one location
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Heat island Describes urban built u
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Prevention Site design and manageme
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Team The guidance has been produced
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Photo credits 80 Swale sections TfL
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SuDS in London - a guide

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