15TH ANNUAL NETWORK CONFERENCE 20 River Restoration: Delivering Multiple Benefits #RRC2014 The RRC would like to thank the sponsors of the RRC Annual Conference 2014 who support discounted places [email protected] 01234 752979 www.therrc.co.uk Daylighting Lost Urban Streams Adam Broadhead Catchment Science Centre, University of Sheffield @losturbanrivers /DaylightingUrbanRivers 3 Watercourses became open sewers... “ The bed of the River Sheaf [is] extensively covered with black, decomposing mud, much of which still consists of putrefying organic matter; and, taking note of the dead dogs and cats which may be seen there….the whole appearance of the river and its tributaries, as they pass between and below the houses of Sheffield, is abominable. Offensive gases are constantly escaping in bubbles from the filthy deposit… ” © The University of Sheffield 4 © The University of Sheffield 5 ...then culverted and buried © The University of Sheffield 6 © The University of Sheffield 7 © The University of Sheffield DRN © Environment Agency copyright and/or database right 2013. OS Basemap © Crown Copyright/database right 2013. An Ordnance Survey/Edina supplied Service. All rights reserved. 8 22% of total stream length in culverts Streams Culverts © The University of Sheffield DRN © Environment Agency copyright and/or database right 2013. OS Basemap © Crown Copyright/database right 2013. An Ordnance Survey/Edina supplied Service. All rights reserved. Yorkshire Water sewer network map, used with permission. 50% stream length “lost”... and captured? © The University of Sheffield Hydrograph from Broadhead et al. (2013), Water Research, 47, 4752. DRN © Environment Agency copyright and/or database right 2013. OS Basemap © Crown Copyright/database right 2013. An Ordnance Survey/Edina supplied Service. All rights reserved. Yorkshire Water sewer network map, used with permission. 50% stream length “lost”... and captured? © The University of Sheffield Hydrograph from Broadhead et al. (2013), Water Research, 47, 4752. DRN © Environment Agency copyright and/or database right 2013. OS Basemap © Crown Copyright/database right 2013. An Ordnance Survey/Edina supplied Service. All rights reserved. Yorkshire Water sewer network map, used with permission. 100+ natural springs “lost”... and captured? © The University of Sheffield Hydrograph from Broadhead et al. (2013), Water Research, 47, 4752. 12 What’s wrong with captured streams & springs? Financial impact to UK water industry £1M/day 20/06/20142001) © The University of Sheffield (Ellis 13 Daylighting urban streams Environmental -- Social -- Economic © The University of Sheffield 14 Multi-benefits of daylighting captured streams © The University of Sheffield 15 How can we daylight them? © The University of Sheffield 16 How can we daylight them? Broadhead, A.T., R. Horn & D.N. Lerner (2013) ‘Captured streams and springs in combined sewers: a review’, Water Research, 47, 13, 4752-4766. © The University of Sheffield 17 Who is responsible? © The University of Sheffield 18 daylighting.org.uk /DaylightingUrbanRivers @losturbanrivers 20/06/2014 © The University of Sheffield 15TH ANNUAL NETWORK CONFERENCE 20 River Restoration: Delivering Multiple Benefits #RRC2014 The RRC would like to thank the sponsors of the RRC Annual Conference 2014 who support discounted places [email protected] 01234 752979 www.therrc.co.uk
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