Case study:Louds Mill (Downstream)m Enhancement - Revision history

Alexrrc at 16:30, 16 January 2017

2017-01-16T16:30:54Z

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	{{Project overview		{{Project overview
	\|Status=Complete		\|Status=Complete
	~~\|Project web site url=restorerivers.eu/wiki/images/0/06/1b_Louds_Mill_Project_Record.pdf~~
	\|Themes=Environmental flows and water resources, Fisheries, Habitat and biodiversity, Hydromorphology		\|Themes=Environmental flows and water resources, Fisheries, Habitat and biodiversity, Hydromorphology
	\|Country=England		\|Country=England

Alexrrc at 16:20, 16 January 2017

2017-01-16T16:20:49Z

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	{{Case study status		{{Case study status
	\|Approval status=~~Draft~~		\|Approval status=Approved
	}}		}}
	{{Location		{{Location

Alexrrc at 16:20, 16 January 2017

2017-01-16T16:20:23Z

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	}}		}}
	{{Project background		{{Project background
			\|Reach length directly affected=150
	\|Project started=2013/01/01		\|Project started=2013/01/01
	}}		}}

Alexrrc at 16:19, 16 January 2017

2017-01-16T16:19:53Z

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	\|Invasive species present=No		\|Invasive species present=No
	}}		}}
	{{Project background}}		{{Project background
			\|Project started=2013/01/01
			}}
	{{Motivations		{{Motivations
	\|Hydromorphological quality elements=Over-wide channel, poor morphology, Channel pattern/planform, Width & depth variation,		\|Hydromorphological quality elements=Over-wide channel, poor morphology, Channel pattern/planform, Width & depth variation,

Alexrrc at 16:18, 16 January 2017

2017-01-16T16:18:38Z

← Older revision		Revision as of 16:18, 16 January 2017
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	{{Project overview		{{Project overview
	\|Status=Complete		\|Status=Complete
			\|Project web site url=restorerivers.eu/wiki/images/0/06/1b_Louds_Mill_Project_Record.pdf
	\|Themes=Environmental flows and water resources, Fisheries, Habitat and biodiversity, Hydromorphology		\|Themes=Environmental flows and water resources, Fisheries, Habitat and biodiversity, Hydromorphology
	\|Country=England		\|Country=England
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	The River Frome Rehabilitation Plan states the main proposals to improve the SSSI condition and WFD objectives of unit 1b and to incorporate as part of the Louds Mill Enhancement were to: a) reprofile banks (to narrow the low flow channel and improve the marginal zone b) to reprofile river bed (to clean the gravels of silt break its compacted nature – improving spawning potential) c) introduce large woody debris to the reach (d) new riparian tree planting (willow whips to be inserted into the bank edges and soft margins at key locations.		The River Frome Rehabilitation Plan states the main proposals to improve the SSSI condition and WFD objectives of unit 1b and to incorporate as part of the Louds Mill Enhancement were to: a) reprofile banks (to narrow the low flow channel and improve the marginal zone b) to reprofile river bed (to clean the gravels of silt break its compacted nature – improving spawning potential) c) introduce large woody debris to the reach (d) new riparian tree planting (willow whips to be inserted into the bank edges and soft margins at key locations.

	\|Monitoring surveys and results=Pre works electro fishing was complete. This is due for repeat in 2015		\|Monitoring surveys and results=Pre works electro fishing was complete. This is due for repeat in 2015
	\|Lessons learn=The technique of installing Large Woody Debris at this site involved digging a trench securing up to a third of the limb in the trench with the remaining in the channel. By using the thicker end of the limb in the trench it left only the thinner branches in the river.		\|Lessons learn=The technique of installing Large Woody Debris at this site involved digging a trench securing up to a third of the limb in the trench with the remaining in the channel. By using the thicker end of the limb in the trench it left only the thinner branches in the river.

Alexrrc at 16:14, 16 January 2017

2017-01-16T16:14:15Z

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	\|Other motivation=Poor riparian vegetation		\|Other motivation=Poor riparian vegetation
	}}		}}
	{{Measures}}		{{Measures
			\|Bank and bed modifications measure=Bank reprofiling, Re-profiling, Cleaning of spawning gravels, Introducing large woody debris, Tree planting, Marginal planting,
			}}
	{{Hydromorphological quality elements header}}		{{Hydromorphological quality elements header}}
	{{End table}}		{{End table}}

Alexrrc at 16:12, 16 January 2017

2017-01-16T16:12:12Z

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	}}		}}
	{{Project background}}		{{Project background}}
	{{Motivations}}		{{Motivations
			\|Hydromorphological quality elements=Over-wide channel, poor morphology, Channel pattern/planform, Width & depth variation,
			\|Biological quality elements=Silted gravels,
			\|Other motivation=Poor riparian vegetation
			}}
	{{Measures}}		{{Measures}}
	{{Hydromorphological quality elements header}}		{{Hydromorphological quality elements header}}

Hazel Wilson at 11:14, 2 November 2015

2015-11-02T11:14:31Z

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	\|Subcatchment=Frome Dorset (Lower) & Furzebrook Stream		\|Subcatchment=Frome Dorset (Lower) & Furzebrook Stream
	}}		}}
	{{Site}}		{{Site
			\|WFD water body code=GB108044009690
			\|WFD water body name=Frome Dorset (Lower) & Furzebrook Stream
			\|Heavily modified water body=No
			\|Protected species present=No
			\|Invasive species present=No
			}}
	{{Project background}}		{{Project background}}
	{{Motivations}}		{{Motivations}}

Hazel Wilson at 11:14, 2 November 2015

2015-11-02T11:14:13Z

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	{{Toggle button}}		{{Toggle button}}
	{{Toggle content start}}		{{Toggle content start}}
	{{Case study subcatchment}}		{{Case study subcatchment
			\|Subcatchment=Frome Dorset (Lower) & Furzebrook Stream
			}}
	{{Site}}		{{Site}}
	{{Project background}}		{{Project background}}

Alymaxwell at 14:03, 8 July 2014

2014-07-08T14:03:24Z

← Older revision		Revision as of 14:03, 8 July 2014
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	}}		}}
	{{Project overview		{{Project overview
	~~\|Project title=Louds Mill (Downstream)m Enhancement~~
	\|Status=Complete		\|Status=Complete
	\|Themes=Environmental flows and water resources, Fisheries, Habitat and biodiversity, Hydromorphology		\|Themes=Environmental flows and water resources, Fisheries, Habitat and biodiversity, Hydromorphology
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	\|Main contact id=Alymaxwell		\|Main contact id=Alymaxwell
	\|Contact organisation=Environment Agency		\|Contact organisation=Environment Agency
			\|Name of parent multi-site project=Case_study:River Frome Rehabilitation Plan
	\|Multi-site=No		\|Multi-site=No
	\|~~Name~~ of ~~parent multi-site project=Case_study:~~River Frome Rehabilitation Plan		\|Project picture=1b Louds Mill Project Record.pdf
			\|Picture description=Louds Mill Project Record
			\|Project summary=The reach downstream of Louds Mill was an over wide channel with little marginal vegetation and poor in channel bed morphology. During low flows the river was spread over the whole width of the channel leading to a shallow river. Spawning potential in the reach were limited due to compacted and over silted gravels. There was also very little cover and in channel structure provided by tree and in channel woody debris.

			The River Frome Rehabilitation Plan states the main proposals to improve the SSSI condition and WFD objectives of unit 1b and to incorporate as part of the Louds Mill Enhancement were to: a) reprofile banks (to narrow the low flow channel and improve the marginal zone b) to reprofile river bed (to clean the gravels of silt break its compacted nature – improving spawning potential) c) introduce large woody debris to the reach (d) new riparian tree planting (willow whips to be inserted into the bank edges and soft margins at key locations.

			\|Monitoring surveys and results=Pre works electro fishing was complete. This is due for repeat in 2015
			\|Lessons learn=The technique of installing Large Woody Debris at this site involved digging a trench securing up to a third of the limb in the trench with the remaining in the channel. By using the thicker end of the limb in the trench it left only the thinner branches in the river.

			Ideally the wood shoul dbe as large as possible when in the river to ensure it will be long lasting and have as big an impact on the flows lcoally as possible.
	}}		}}
	{{Image gallery}}		{{Image gallery}}