Case study:Rhymney Great Wharf - Revision history

Alexrrc at 15:37, 8 November 2018

2018-11-08T15:37:31Z

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Alexrrc at 15:37, 8 November 2018

2018-11-08T15:37:22Z

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	\|Specific mitigation=Flood and coastal erosion protection,		\|Specific mitigation=Flood and coastal erosion protection,
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	{{Measures}}		{{Measures
			\|Other technical measure=Salt marsh and mudflat restoration,
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Alexrrc at 15:37, 8 November 2018

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	\|Funding sources=Welsh Government		\|Funding sources=Welsh Government
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			\|Specific mitigation=Flood and coastal erosion protection,
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	{{Measures}}		{{Measures}}
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Alexrrc at 15:36, 8 November 2018

2018-11-08T15:36:45Z

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			\|Total1 cost=£1.6m
			\|Funding sources=Welsh Government
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Alexrrc at 15:36, 8 November 2018

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	{{Project overview		{{Project overview
	~~\|Project title=Rhymney Great Wharf~~
	\|Status=Complete		\|Status=Complete
			\|Project web site url=www.therrc.co.uk/sites/default/files/projects/57_rhymney.pdf
	\|Themes=Flood risk management, Habitat and biodiversity		\|Themes=Flood risk management, Habitat and biodiversity
	\|Country=Wales		\|Country=Wales
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	\|Contact organisation=Natural Resources Wales		\|Contact organisation=Natural Resources Wales
	\|Contact organisation url=naturalresources.wales/?lang=en		\|Contact organisation url=naturalresources.wales/?lang=en
			\|Partner organisations=Atkins,
	\|Multi-site=No		\|Multi-site=No
			\|Project picture=57 Rhymney.png
			\|Project summary=The Severn Estuary foreshore has international importance, reflected by the following designations: Site of Special Scientific Interest (SSSI), Special Protection Area (SPA), possible Special Area of Conservation (pSAC) and Ramsar. The site itself is located seaward of the Wentlooge Sea Defences, where the upper, vegetated saltmarsh is referred to as the 'wharf' and the lower unvegetated foreshore as the 'mudflats'.
			The Wentlooge Sea Defences (Map 1) protect an area of low-lying land, of which approximately 32km2 lies below mean high water springs (MHWS). The wharf acts as part of the sea defence by reducing the incident wave energy on the embankments themselves.
			Study of the foreshore highlighted that the wharf had been eroding locally at a fairly constant rate over a long period. In 2003, pockets of erosion were in close proximity to the flood defence embankment and as such continued erosion was predicted to undermine the embankment by the year 2008. As an immediate mitigation against further erosion of the wharf, thus protecting the defences, it was decided to use harder, more traditional engineering in the form of blockstone and rip-rap. As a longer term strategy, polder were used in an effort to regenerate the mudflats and increase protection to the wharf scarp.
			The works that were carried out have effectively stopped/slowed the erosion of the wharf, thus:
			• maintaining the ecologically important land
			• preventing the undermining of the defences and maintaining their function
			• protecting ~30km2 of agricultural land, business and numerous communities within the Wentlooge Levels
			\|Project title=Rhymney Great Wharf
	}}		}}
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Alexrrc: Created page with "{{Case study status |Approval status=Draft }} {{Location |Location=51.499542, -3.0901651000000356 }} {{Project overview |Project title=Rhymney Great Wharf |Status=Complete |Th..."

2018-11-08T15:34:51Z

Created page with "{{Case study status |Approval status=Draft }} {{Location |Location=51.499542, -3.0901651000000356 }} {{Project overview |Project title=Rhymney Great Wharf |Status=Complete |Th..."

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{{Case study status
|Approval status=Draft
}}
{{Location
|Location=51.499542, -3.0901651000000356
}}
{{Project overview
|Project title=Rhymney Great Wharf
|Status=Complete
|Themes=Flood risk management, Habitat and biodiversity
|Country=Wales
|Main contact forename=Huw
|Main contact surname=Alford
|Contact organisation=Natural Resources Wales
|Contact organisation url=naturalresources.wales/?lang=en
|Multi-site=No
}}
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