SuDS in London - a guide
sustainable-urban-drainage-november-2016
sustainable-urban-drainage-november-2016
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Hampstead Ridge<br />
Valley<br />
Lea Valley<br />
Lea Valley<br />
Lea Valley<br />
Lea Valley<br />
North Thames Terraces<br />
2.3 <strong>London</strong>’s<br />
North Thames Terraces<br />
North Thames Terraces<br />
North Thames Terraces<br />
geological conditions<br />
Lower Thames Floodpla<strong>in</strong><br />
Greater <strong>London</strong> is situated <strong>in</strong> the <strong>London</strong><br />
Lower Thames Floodpla<strong>in</strong><br />
Lower Thames Floodpla<strong>in</strong><br />
Bas<strong>in</strong>. This is made up of layers of deposits<br />
Lower Thames Floodpla<strong>in</strong><br />
of chalk, clays, sand, and gravel.<br />
North Thames Terraces<br />
North Thames Terraces<br />
North Thames Terraces<br />
North Thames Terraces<br />
North Thames Terraces<br />
North Thames Terraces<br />
North Thames Terraces<br />
North Thames Terraces<br />
Further <strong>in</strong>formation:<br />
CIRIA C753 The <strong>SuDS</strong> Manual, Chapter 29<br />
British Geological Survey<br />
Lower Thames Floodpla<strong>in</strong><br />
Geology Lower of Thames <strong>London</strong> Floodpla<strong>in</strong>(2012), Royse et al<br />
Lower Thames Floodpla<strong>in</strong><br />
Management of the <strong>London</strong> Bas<strong>in</strong> Chalk<br />
Lower Thames Floodpla<strong>in</strong><br />
Essex Plateau<br />
Essex Plateau<br />
Essex Plateau<br />
Essex Plateau<br />
Eng<strong>in</strong>eer<strong>in</strong>g Geology of British Rocks and<br />
Soils – Lambeth Group Aquifer: Status<br />
Report 2015, Environment Agency<br />
andle<br />
alley<br />
andle<br />
andle<br />
alley<br />
andle<br />
alley<br />
alley<br />
ondon<br />
Gravels<br />
ondon<br />
ondon<br />
Gravels<br />
ondon<br />
Gravels<br />
Gravels<br />
Understand<strong>in</strong>g the geological condition of<br />
the ground is vital to the implementation<br />
of <strong>SuDS</strong> features, as different ground<br />
conditions <strong>in</strong>dicate how <strong>SuDS</strong> will <strong>in</strong>teract<br />
South <strong>London</strong><br />
with their local environment.<br />
Clays and Gravels<br />
South <strong>London</strong><br />
Clays South<br />
and <strong>London</strong><br />
Gravels<br />
Clays South and <strong>London</strong><br />
Gravels<br />
Ravensbourne<br />
River Valley<br />
For example, Clays and Gravels some of <strong>London</strong>’s Ravensbourne<br />
River Valley geological<br />
River Valley<br />
formations may present risks <strong>in</strong>clud<strong>in</strong>g:<br />
compressible deposits, collapsible<br />
deposits, shr<strong>in</strong>k-swell clays, runn<strong>in</strong>g sand,<br />
soluble rocks and landslides.<br />
The British Geological Survey (BGS) can<br />
provide useful prelim<strong>in</strong>ary <strong>in</strong>formation.<br />
Geotechnical surveys confirm site specific<br />
geology. Such <strong>in</strong>formation on geotechnical<br />
properties, such as permeability, Lower North <strong>London</strong> porosity<br />
Downs Dip Slope<br />
and soakage, should Lower be gathered North <strong>London</strong> as<br />
Lower<br />
Downs North<br />
Dip <strong>London</strong><br />
Slope<br />
basel<strong>in</strong>e data for any Lower Downs<br />
<strong>SuDS</strong> North Dip<br />
project.<br />
<strong>London</strong><br />
Slope<br />
Lower North <strong>London</strong><br />
Downs Dip Slope<br />
Lower North <strong>London</strong><br />
Lower<br />
Downs North<br />
Dip <strong>London</strong><br />
Slope<br />
Lower Downs North Dip <strong>London</strong><br />
Slope<br />
Downs Dip Slope<br />
Upper North <strong>London</strong><br />
Downs Dip Slope<br />
Upper North <strong>London</strong><br />
Upper<br />
Downs North<br />
Dip <strong>London</strong><br />
Slope<br />
Upper Downs North Dip <strong>London</strong><br />
Slope<br />
Downs Dip Slope<br />
19 2 The <strong>London</strong> context<br />
Downs Dip Slope<br />
Ravensbourne<br />
River Valley<br />
Ravensbourne<br />
Ravensbourne<br />
South <strong>London</strong> Pebbly Sands<br />
South <strong>London</strong> Pebbly Sands<br />
South <strong>London</strong> Pebbly Sands<br />
Colne<br />
Valley<br />
Colne<br />
Valley<br />
South <strong>London</strong> Pebbly Sands<br />
South <strong>London</strong> Pebbly Sands<br />
South <strong>London</strong> Pebbly Sands<br />
South <strong>London</strong> Pebbly Sands<br />
Upper North <strong>London</strong><br />
Downs Dip Slope<br />
Upper North <strong>London</strong><br />
Upper<br />
Downs North<br />
Dip <strong>London</strong><br />
Slope<br />
Upper Downs North Dip <strong>London</strong><br />
Slope<br />
Downs Dip Slope<br />
South <strong>London</strong> Pebbly Sands<br />
Ruislip Plateau<br />
Hayes Gravels<br />
Barnet Plateau<br />
Hounslow Gravels<br />
River<br />
Cray<br />
River<br />
Valley<br />
River<br />
Cray<br />
Valley River<br />
Cray<br />
Valley Cray<br />
Valley<br />
Brent Valley<br />
Barnet Plateau<br />
Lower North<br />
Upper <strong>London</strong><br />
Thames<br />
Downs Dip Slope<br />
Lower North <strong>London</strong><br />
Lower<br />
Downs North<br />
Dip <strong>London</strong><br />
Slope<br />
Lower Downs North Dip <strong>London</strong><br />
Slope<br />
Downs Dip Slope<br />
Barnet Plateau<br />
Hampstead Ridge<br />
Hayes Gravels<br />
Upper Thames<br />
South Thames<br />
Heaths and Commons<br />
F<strong>in</strong>chley Ridge<br />
Wandle<br />
Valley<br />
South <strong>London</strong><br />
Clays and Gravels<br />
Hampstead Ridge<br />
F<strong>in</strong>chley Ridge<br />
Lower North <strong>London</strong><br />
Downs Dip Slope<br />
South <strong>London</strong><br />
Clays and Gravels<br />
Upper North <strong>London</strong><br />
Downs Dip Slope<br />
Lea Valley<br />
North Thames Terraces<br />
Lower Thames Floodpla<strong>in</strong><br />
The geology of <strong>London</strong>, All <strong>London</strong> Green Grid, GiGL<br />
Lea Valley<br />
Lower North <strong>London</strong><br />
Downs Dip Slope<br />
Essex Plateau<br />
Ravensbourne<br />
River Valley<br />
Rod<strong>in</strong>g<br />
Valley<br />
North Thames Terraces<br />
South <strong>London</strong> Pebbly Sands<br />
Upper North <strong>London</strong><br />
Downs Dip Slope<br />
Essex Plateau<br />
North Thames Terraces<br />
Lower Thames Floodpla<strong>in</strong><br />
South <strong>London</strong> Pebbly Sands<br />
River<br />
Cray<br />
Valley<br />
Lower North <strong>London</strong><br />
Downs Dip Slope<br />
Essex Plateau<br />
All <strong>London</strong> Green Grid<br />
All <strong>London</strong> Green Grid<br />
All <strong>London</strong> Green Grid<br />
Ecological / Lands<br />
Ecological Ecological /<br />
Lands<br />
Lands<br />
Chalk soils<br />
Chalk soils<br />
Chalk Gravel soils<br />
and Sandy hilltops<br />
Chalk soils<br />
Gravel and Sandy Chalk soils hilltops<br />
Gravel Clays<br />
and sandy Sandy<br />
Gravel hilltop<br />
hilltops<br />
Sandy Gravel and Sandy Clays<br />
Clays<br />
hilltops<br />
Loams<br />
Clays Loams<br />
Clays<br />
Low level Gravels<br />
Loams<br />
Flood Pla<strong>in</strong> soils<br />
Loams Low<br />
Loams<br />
level gravels<br />
Gravels<br />
Annotated<br />
Low level pla<strong>in</strong> Gravels<br />
Natural Signatures - Natural England<br />
Low Flood level Pla<strong>in</strong> Gravels<br />
soils<br />
Low Flood level Pla<strong>in</strong> Gravels soils<br />
Flood Pla<strong>in</strong> soils<br />
Flood Pla<strong>in</strong> soils<br />
Annotated<br />
Annotated<br />
Annotated Natural Signatures - Natural En<br />
Annotated Natural Signatures Natural En<br />
Natural Signatures - Natural En<br />
Natural Signatures - Natural En<br />
All <strong>London</strong> Green Grid<br />
Ecological / Landscape Zon
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