{"id":1594,"date":"2021-06-30T16:57:22","date_gmt":"2021-06-30T15:57:22","guid":{"rendered":"https:\/\/research.reading.ac.uk\/nerc-nfm\/?page_id=1594"},"modified":"2021-07-12T18:25:21","modified_gmt":"2021-07-12T17:25:21","slug":"blog-lower-pang-leaky-dams-defra-pilot-project","status":"publish","type":"page","link":"https:\/\/research.reading.ac.uk\/nerc-nfm\/blog\/blog-lower-pang-leaky-dams-defra-pilot-project\/","title":{"rendered":"Blog &#8211; Lower Pang Leaky Dams Defra NFM Pilot Project"},"content":{"rendered":"<p><strong>Landwise Researcher Gabby Powell describes work on the Lower Pang Leaky Dams Defra Pilot Project<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-1596\" style=\"letter-spacing: 0.08px\" src=\"https:\/\/research.reading.ac.uk\/nerc-nfm\/wp-content\/uploads\/sites\/81\/2021\/06\/Gabrielle_Powell_A1.jpg\" alt=\"\" width=\"211\" height=\"280\" \/><span style=\"letter-spacing: 0.08px\">\u00a0 \u00a0 <\/span><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-1600\" style=\"letter-spacing: 0.08px\" src=\"https:\/\/research.reading.ac.uk\/nerc-nfm\/wp-content\/uploads\/sites\/81\/2021\/06\/IMG_6578-225x300.jpg\" alt=\"\" width=\"208\" height=\"277\" srcset=\"https:\/\/research.reading.ac.uk\/nerc-nfm\/wp-content\/uploads\/sites\/81\/2021\/06\/IMG_6578-225x300.jpg 225w, https:\/\/research.reading.ac.uk\/nerc-nfm\/wp-content\/uploads\/sites\/81\/2021\/06\/IMG_6578-768x1024.jpg 768w, https:\/\/research.reading.ac.uk\/nerc-nfm\/wp-content\/uploads\/sites\/81\/2021\/06\/IMG_6578-1152x1536.jpg 1152w, https:\/\/research.reading.ac.uk\/nerc-nfm\/wp-content\/uploads\/sites\/81\/2021\/06\/IMG_6578-1536x2048.jpg 1536w, https:\/\/research.reading.ac.uk\/nerc-nfm\/wp-content\/uploads\/sites\/81\/2021\/06\/IMG_6578-scaled.jpg 1920w\" sizes=\"auto, (max-width: 208px) 100vw, 208px\" \/>\u00a0 \u00a0 <img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-1598\" style=\"letter-spacing: 0.08px\" src=\"https:\/\/research.reading.ac.uk\/nerc-nfm\/wp-content\/uploads\/sites\/81\/2021\/06\/IMG_5808-225x300.jpg\" alt=\"\" width=\"210\" height=\"280\" srcset=\"https:\/\/research.reading.ac.uk\/nerc-nfm\/wp-content\/uploads\/sites\/81\/2021\/06\/IMG_5808-225x300.jpg 225w, https:\/\/research.reading.ac.uk\/nerc-nfm\/wp-content\/uploads\/sites\/81\/2021\/06\/IMG_5808-768x1024.jpg 768w, https:\/\/research.reading.ac.uk\/nerc-nfm\/wp-content\/uploads\/sites\/81\/2021\/06\/IMG_5808-1152x1536.jpg 1152w, https:\/\/research.reading.ac.uk\/nerc-nfm\/wp-content\/uploads\/sites\/81\/2021\/06\/IMG_5808-1536x2048.jpg 1536w, https:\/\/research.reading.ac.uk\/nerc-nfm\/wp-content\/uploads\/sites\/81\/2021\/06\/IMG_5808-scaled.jpg 1920w\" sizes=\"auto, (max-width: 210px) 100vw, 210px\" \/><\/p>\n<p>Landwise NFM project partners, the <a href=\"https:\/\/www.floodalleviation.uk\/\">Pang Valley Flood Forum<\/a>, are carrying out a Defra funded NFM pilot project in the lower Pang Valley, a few miles to the west of Reading.\u00a0 \u00a0Some 40 leaky dams have been construc<span style=\"letter-spacing: 0.08px\">ted and are being monitoring in the tributaries of the Pang river which joins the Thames at Pangbourne. Key partners include <a href=\"https:\/\/www.twenty65.ac.uk\/\">Twenty 65<\/a>, the <a href=\"https:\/\/www.englefieldestate.co.uk\/\">Englefield Estate<\/a>, and the Environment Ag<\/span><span style=\"letter-spacing: 0.08px\">ency. A video describing this work has recently been released:\u00a0<\/span><\/p>\n<p><iframe loading=\"lazy\" title=\"Pang Valley Flood Forum \u2013 Our Defra Natural Flood Management pilot project in the lower Pang Valley\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/9lvNjYtsx7Y?start=2&#038;feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p>University of Reading researcher Gabby Powell explained her role in this and related work for the Landwise project.<\/p>\n<p>\u201cOur research inclu<span style=\"letter-spacing: 0.08px\">des following a<\/span> <span style=\"letter-spacing: 0.08px\">local flood group, the Pang Valley Forum, who won a Defra grant for a NFM pilot project. Through the co-production of research, incorporating both lay and expert knowledge, I am investigating the role of community partnership and evaluating the design of <\/span><a style=\"letter-spacing: 0.08px\" href=\"https:\/\/research.reading.ac.uk\/nerc-nfm\/our-research\/nfm-measures-2\/\">NFM interventions<\/a><span style=\"letter-spacing: 0.08px\">.\u201d<\/span><\/p>\n<p>\u201cAs you can see from the video, the work has a stron<span style=\"letter-spacing: 0.08px\">g local support and active collaboration from local landowner <\/span><a style=\"letter-spacing: 0.08px\" href=\"https:\/\/www.englefieldestate.co.uk\/\">Englefield Estate<\/a><span style=\"letter-spacing: 0.08px\">. There is a lot of interest in the locality as 120 homes were flooded downstream in Pangbourne in 2007.\u00a0 The contribution of those who are at risk of flooding is particularly important.\u201d\u00a0 \u00a0<\/span><\/p>\n<p>The research includes assessing the role of community engagement with NFM and how this impacts the perceived responsibility and flood authorities and water companies.<\/p>\n<p>\u201cI will be interviewing\u00a0 people who live near one of the areas under study to better understand their perspective and level of enthusiasm for NFM.\u201d<\/p>\n<p>Gabby described the field investigations: \u201cMonitoring will indica<span style=\"letter-spacing: 0.08px\">te<\/span><span style=\"letter-spacing: 0.08px\">\u00a0the efficiency of different types of leaky barriers at slowing the flow of excess water, resulting from rainfall events of different sizes. Additionally, an annual geomorphic survey of the river and leaky barriers is undertaken to evaluate the effect different types of leaky barriers have on the river morphology and the evolution of the leaky barriers themselves.\u201d<\/span><\/p>\n<p>\u201cLeaky dams mimic the natural obstruction caused by trees and branches falling into the river. They range from a single large branch to a network of several tree trunks.\u00a0 Only locally sourced trees were used.\u201d<\/p>\n<p>One of the challenges has been the lack of baseline pre-intervention data. Pang Valley Flood Forum faced many challenges getting the project set up once they had won the Defra grant. There were issues around liability and insurance, among others, that needed to be resolved, \u00a0and they were unsure whether the project could go ahead.\u00a0 The time taken to resolve the issues used up time that would have been used for pre-intervention monitoring.\u00a0 So we have had to adapt the monitoring design to compare upstream and downstream impacts at different scales across the project area.<\/p>\n<p>On findings so far Gabby said: \u201cWe are at the early stages of two to three years of data collection. So far, as expected the data indicates that the barriers are proving effective in terms of storage and attenuation and in reducing flood peaks for smaller more frequent storms, although less so for larger events.\u201d<\/p>\n<p>\u201cLeaky dams have many benefits beyond flood mit<span style=\"letter-spacing: 0.08px\">igation. They are also good for in-stream habitat \u2013 trapping sediment which improves water quality and providing habitat for fish through creating pools and cover.\u00a0 The ant<\/span><span style=\"letter-spacing: 0.08px\">icipated benefits for biodiversity were a factor that helped attract the Defra funding.\u00a0 Early monitoring results already show benefits for fungi, invertebrates, and birds.\u201d<\/span><\/p>\n<p>Explaining links with other Landwise work she explained: \u201cOne of the outcomes of the monitoring is that the data will allow for the modelling of the catchment by <a href=\"https:\/\/www.jbaconsulting.com\/\">JBA Consulting<\/a> to be improved which in turn will help us understand better the impacts of scaling up this type of intervention.\u201d<\/p>\n<p>\u201cIn conclusion, I must emphasise the importance of the partnership approach to this work as well as the contribution of my research colleagues in the Landwise team.\u201d<\/p>\n<p>Contact Gabby Powell: <a href=\"mailto:g.b.powell@pgr.reading.ac.uk\">g.b.powell@pgr.reading.ac.uk<\/a><\/p>\n<p>The Landwise modelling team will be presenting on <em>Modelling NFM in lowland catchments\u00a0<\/em><span style=\"letter-spacing: 0.08px\">as part our webinar series on\u00a0<\/span>29 July\u00a02021 12:30 \u2013 13:30.\u00a0 Find out more and book for free <a href=\"https:\/\/research.reading.ac.uk\/nerc-nfm\/webinar-series\/\">here<\/a>.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1597\" style=\"letter-spacing: 0.08px\" src=\"https:\/\/research.reading.ac.uk\/nerc-nfm\/wp-content\/uploads\/sites\/81\/2021\/06\/IMG_5805-225x300.jpg\" alt=\"\" width=\"225\" height=\"300\" srcset=\"https:\/\/research.reading.ac.uk\/nerc-nfm\/wp-content\/uploads\/sites\/81\/2021\/06\/IMG_5805-225x300.jpg 225w, https:\/\/research.reading.ac.uk\/nerc-nfm\/wp-content\/uploads\/sites\/81\/2021\/06\/IMG_5805-768x1024.jpg 768w, https:\/\/research.reading.ac.uk\/nerc-nfm\/wp-content\/uploads\/sites\/81\/2021\/06\/IMG_5805-1152x1536.jpg 1152w, https:\/\/research.reading.ac.uk\/nerc-nfm\/wp-content\/uploads\/sites\/81\/2021\/06\/IMG_5805-1536x2048.jpg 1536w, https:\/\/research.reading.ac.uk\/nerc-nfm\/wp-content\/uploads\/sites\/81\/2021\/06\/IMG_5805-scaled.jpg 1920w\" sizes=\"auto, (max-width: 225px) 100vw, 225px\" \/>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1602\" style=\"letter-spacing: 0.08px\" src=\"https:\/\/research.reading.ac.uk\/nerc-nfm\/wp-content\/uploads\/sites\/81\/2021\/06\/IMG_5697-300x225.jpg\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/research.reading.ac.uk\/nerc-nfm\/wp-content\/uploads\/sites\/81\/2021\/06\/IMG_5697-300x225.jpg 300w, https:\/\/research.reading.ac.uk\/nerc-nfm\/wp-content\/uploads\/sites\/81\/2021\/06\/IMG_5697-1024x768.jpg 1024w, https:\/\/research.reading.ac.uk\/nerc-nfm\/wp-content\/uploads\/sites\/81\/2021\/06\/IMG_5697-768x576.jpg 768w, https:\/\/research.reading.ac.uk\/nerc-nfm\/wp-content\/uploads\/sites\/81\/2021\/06\/IMG_5697-1536x1152.jpg 1536w, https:\/\/research.reading.ac.uk\/nerc-nfm\/wp-content\/uploads\/sites\/81\/2021\/06\/IMG_5697-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Landwise Researcher Gabby Powell describes work on the Lower Pang Leaky Dams Defra Pilot Project \u00a0 \u00a0 \u00a0 \u00a0 Landwise NFM project partners, the Pang Valley Flood Forum, are carrying&#8230;<a class=\"read-more\" href=\"&#104;&#116;&#116;&#112;&#115;&#58;&#47;&#47;&#114;&#101;&#115;&#101;&#97;&#114;&#99;&#104;&#46;&#114;&#101;&#97;&#100;&#105;&#110;&#103;&#46;&#97;&#99;&#46;&#117;&#107;&#47;&#110;&#101;&#114;&#99;&#45;&#110;&#102;&#109;&#47;&#98;&#108;&#111;&#103;&#47;&#98;&#108;&#111;&#103;&#45;&#108;&#111;&#119;&#101;&#114;&#45;&#112;&#97;&#110;&#103;&#45;&#108;&#101;&#97;&#107;&#121;&#45;&#100;&#97;&#109;&#115;&#45;&#100;&#101;&#102;&#114;&#97;&#45;&#112;&#105;&#108;&#111;&#116;&#45;&#112;&#114;&#111;&#106;&#101;&#99;&#116;&#47;\">Read More ><\/a><\/p>\n","protected":false},"author":147,"featured_media":0,"parent":671,"menu_order":2,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"__cvm_playback_settings":[],"__cvm_video_id":"","footnotes":""},"class_list":["post-1594","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.8.1 - 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