Case study:River Pinn Enhancement near Ickenham - Revision history

Alexrrc at 12:33, 6 June 2017

2017-06-06T12:33:05Z

← Older revision		Revision as of 12:33, 6 June 2017
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	\|Main contact forename=David		\|Main contact forename=David
	\|Main contact surname=Holland		\|Main contact surname=Holland
	\|Contact organisation=~~SALIX~~ River ~~and~~ Wetland Services		\|Contact organisation=Salix River & Wetland Services Limited
	\|Multi-site=No		\|Multi-site=No
	\|Project picture=Salix1.png		\|Project picture=Salix1.png

Hazel Wilson at 12:23, 27 October 2015

2015-10-27T12:23:38Z

@@ Line 28: / Line 28: @@
 }}
 {{Site
-|Name=
+|WFD water body code=GB106039023070
+|WFD water body name=Pinn
+|Heavily modified water body=No
+|Protected species present=No
-|WFD water body code=
+|Invasive species present=No
 }}
 {{Project background

JoshRRC at 12:45, 9 October 2014

2014-10-09T12:45:59Z

← Older revision		Revision as of 12:45, 9 October 2014
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	{{~~Case_study_status~~		{{Case study status
	\|Approval status=		\|Approval status=Approved






	~~Draft~~
	}}		}}
	{{Location		{{Location

JoshRRC at 12:45, 9 October 2014

2014-10-09T12:45:34Z

← Older revision		Revision as of 12:45, 9 October 2014
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	\|Contact organisation=SALIX River and Wetland Services		\|Contact organisation=SALIX River and Wetland Services
	\|Multi-site=No		\|Multi-site=No
			\|Project picture=Salix1.png
			\|Picture description=Gravel being added to the channel
	\|Project summary=Salix designed and constructed a 40 metre enhanced channel and imported flint reject stone was used to create in channel features, two riffles and a point bar. Diverse marginal and bankside vegetation was established using mature pre-established coir rolls and pallets. Locally harvested tree trunks were used to create a double flow deflector. Additionally, a large backwater was created on line and just downstream of the enhanced reach.<br>		\|Project summary=Salix designed and constructed a 40 metre enhanced channel and imported flint reject stone was used to create in channel features, two riffles and a point bar. Diverse marginal and bankside vegetation was established using mature pre-established coir rolls and pallets. Locally harvested tree trunks were used to create a double flow deflector. Additionally, a large backwater was created on line and just downstream of the enhanced reach.<br>
	A stream enhancement project at a gas pipeline river crossing as ecological mitigation to a degraded reach of stream as part of a major pipeline project. Salix were asked by Main Contractor Murphy Pipelines to assess a degraded reach of the River Pinn near Ickenham with the goal of enhancing the reach. The channel had been modified previously and was characterised by slow water flow, over deep and ponded with a silty bed and steep banks covered in nettles.		A stream enhancement project at a gas pipeline river crossing as ecological mitigation to a degraded reach of stream as part of a major pipeline project. Salix were asked by Main Contractor Murphy Pipelines to assess a degraded reach of the River Pinn near Ickenham with the goal of enhancing the reach. The channel had been modified previously and was characterised by slow water flow, over deep and ponded with a silty bed and steep banks covered in nettles.

Ivo at 11:38, 25 April 2014

2014-04-25T11:38:28Z

@@ Line 92: / Line 92: @@
 }}
 {{Measures
-|Bank and bed modifications measure=
+|Bank and bed modifications measure=Installation of coir rolls, Deflectors
+|Planform / Channel pattern=Creation of backwater, Creation of pools and riffles
 }}
 {{Hydromorphological_quality_elements_header}}

Ivo at 11:38, 25 April 2014

2014-04-25T11:38:16Z

← Older revision		Revision as of 11:38, 25 April 2014
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	}}		}}
	{{Motivations		{{Motivations
	~~\|Hydromorphological quality elements=~~		\|Specific mitigation=Riparian development



	~~\|Biological quality elements=~~

	~~\|Physico-chemical quality elements=~~

	\|Specific mitigation=

	~~\|Other motivation=~~

	}}		}}
	{{Measures		{{Measures

Ivo at 14:04, 10 April 2014

2014-04-10T14:04:31Z

← Older revision		Revision as of 14:04, 10 April 2014
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	\|Contact organisation=SALIX River and Wetland Services		\|Contact organisation=SALIX River and Wetland Services
	\|Multi-site=No		\|Multi-site=No
			\|Project summary=Salix designed and constructed a 40 metre enhanced channel and imported flint reject stone was used to create in channel features, two riffles and a point bar. Diverse marginal and bankside vegetation was established using mature pre-established coir rolls and pallets. Locally harvested tree trunks were used to create a double flow deflector. Additionally, a large backwater was created on line and just downstream of the enhanced reach.<br>
			A stream enhancement project at a gas pipeline river crossing as ecological mitigation to a degraded reach of stream as part of a major pipeline project. Salix were asked by Main Contractor Murphy Pipelines to assess a degraded reach of the River Pinn near Ickenham with the goal of enhancing the reach. The channel had been modified previously and was characterised by slow water flow, over deep and ponded with a silty bed and steep banks covered in nettles.
			\|Monitoring surveys and results=No post project monitoring has been done.
			\|Lessons learn=Revisiting site in July 2009: The gravel has concentrated the low flows and revived water flow in the reach, and diverse marginal and bankside vegetation has established.
	}}		}}
	{{Image_gallery}}		{{Image_gallery}}

Ivo at 11:42, 10 April 2014

2014-04-10T11:42:11Z

← Older revision		Revision as of 11:42, 10 April 2014
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	{{Toggle_button}}		{{Toggle_button}}
	{{Toggle_content_start}}		{{Toggle_content_start}}
	{{~~Case_study_subcatchment~~		{{Case study subcatchment
	\|Subcatchment=		\|Subcatchment=Pinn







	}}		}}
	{{Site		{{Site

Ivo at 10:17, 10 April 2014

2014-04-10T10:17:09Z

@@ Line 85: / Line 85: @@
 }}
-{{Project_background
+{{Project background
-|Reach length directly affected=
+|Reach length directly affected=40 m
 |Project started=2009/01/01
 |Works completed=2009/01/01
-m
+|Total cost category=10 - 50 k€
 }}
 {{Motivations

Ivo at 16:50, 9 April 2014

2014-04-09T16:50:42Z

← Older revision		Revision as of 16:50, 9 April 2014
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	\|Location=51.5545997619628, -0.458040475845337		\|Location=51.5545997619628, -0.458040475845337
	}}		}}
	{{~~Project_overview~~		{{Project overview
	\|Status=		\|Status=Complete
			\|Themes=Habitat and biodiversity
			\|Country=England
	Complete		\|Main contact forename=David
	~~\|Project web site url=~~		\|Main contact surname=Holland
			\|Contact organisation=SALIX River and Wetland Services
	\|Themes=		\|Multi-site=No

	\|Country=
	England
	\|Main contact forename=
	David
	\|Main contact surname=
	Holland
	~~\|Main contact id=~~

	\|Contact organisation=
	SALIX River and Wetland Services
	~~\|Contact organisation url=~~

	~~\|Partner organisations=~~

	\|Multi-site=

	~~\|Name of parent multi-site project=~~

	~~\|Project picture=~~

	~~\|Picture description=~~

	~~\|Project summary=~~

	}}		}}
	{{Image_gallery}}		{{Image_gallery}}