Case study:Dove Weir removal: Difference between revisions

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{{Case_study_status
{{Case study status
|Approval status=
|Approval status=Approved
   
 
 
   
      Draft
}}
}}
{{Location
{{Location
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|Themes=Habitat and biodiversity, Hydromorphology, Land use management - agriculture, Monitoring, Spatial planning
|Themes=Habitat and biodiversity, Hydromorphology, Land use management - agriculture, Monitoring, Spatial planning
|Country=England
|Country=England
|Main contact forename=Nick
|Main contact forename=Alex
|Main contact surname=Elbourne
|Main contact surname=Swann
|Main contact id=NickRRC
|Contact organisation=Leek and District Fly Fishing Association
|Contact organisation=River Restoration Centre
|Partner organisations=Leek and District Fly Fishing Association
|Multi-site=No
|Multi-site=No
|Project picture=100 0413.JPG
|Project picture=100 0413.JPG
|Picture description=River Dove downstream of weir removal, with introduced woody debris
|Picture description=River Dove downstream of weir removal, with introduced woody debris
|Project summary=The Leek and District Fly Fishing Association (LDFFA) undertook work to remove an artificial weir in an attempt to restore a more natural flow to the river. The river was also 're-wilded' to introduce woody debris and other material to enhance fish habitats.
|Project summary=The Leek and District Fly Fishing Association (LDFFA) undertook work to remove an artificial weir in an attempt to restore a more natural flow to the river. The river was also 're-wilded' to introduce woody debris and other material to enhance fish habitats.
Warning signs provided to stop public removing debris or rebuilding weirs.
}}
}}
{{Case_study_subcatchment
{{Image gallery}}
|Subcatchment=
{{Case study image
   
|File name=100 0399edited.JPG
   
|Caption=Example of an existing weir upstream of works, August 2011
      Dove
}}
{{Case study image
|File name=100 0405.JPG
|Caption=One of the sites of weir removal, August 2011
}}
{{Case study image
|File name=100 0404.JPG
|Caption=Introduced woody debris and establishment of vegetation within 12 months, August 2011
}}
{{Case study image
|File name=100 0411.JPG
|Caption=Created riffles
}}
{{Image_gallery_end}}
{{Toggle button}}
{{Toggle content start}}
{{Case study subcatchment
|Subcatchment=R Maniford/Dove from R Hamps to R Churnet
}}
}}
{{Site
{{Site
|Name=Dovedale
|Name=Dovedale
|WFD water body code=GB104028052670
|WFD water body name=R Maniford/Dove from R Hamps to R Churnet
|Pre-project morphology=Single channel,Impounded,High width:depth,Embanked
|Pre-project morphology=Single channel,Impounded,High width:depth,Embanked
|Reference morphology=Single channel,Pool-riffle
|Reference morphology=Single channel,Pool-riffle
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|Average bankfull channel depth category=5 - 10 m
|Average bankfull channel depth category=5 - 10 m
}}
}}
{{Project_background
{{Project background
|Reach length directly affected=
|Reach length directly affected=1000 m
   
|Project started=2010/07/01
   
|Works completed=2010/08/01
      1000 m
|Total cost category=1 - 10 k€
|Project started=
|Total1 cost=2 k€
      2010/07/01
|Funding sources=Leek and District Fly Fishing Association
|Works started=
|Investigation and design Lead organisation=Leek and District Fly Fishing Association
     
|Stakeholder engagement Lead organisation=Leek and District Fly Fishing Association
|Works completed=
|Works and supervision Lead organisation=Leek and District Fly Fishing Association
      2010/08/01
|Post-project management and maintenance Lead organisation=Leek and District Fly Fishing Association
|Project completed=
|Monitoring Lead organisation=Leek and District Fly Fishing Association
     
|Total cost category=
      Less than 10 k€
|Total1 cost=
      2 k€
|Funding sources=
      Leek and District Fly Fishing Association
|Investigation and design cost category=
     
|Invst and design cost=
     
|Investigation and design Lead organisation=
      Leek and District Fly Fishing Association
|Investigation and design Other contact forename=
     
|Investigation and design Other contact surname=
     
|Stakeholder1 engagement cost category=
     
|stk engagement cost=
     
|Stakeholder engagement Lead organisation=
      Leek and District Fly Fishing Association
|Stakeholder engagement Other contact forename=
     
|Stakeholder engagement Other contact surname=
     
|Works1 and supervision cost category=
     
|Wrk and supervision cost=
     
|Works and supervision Lead organisation=
      Leek and District Fly Fishing Association
|Works and supervision Other contact forename=
     
|Works and supervision Other contact surname=
     
|Post-project1 management and maintenance cost category=
     
|Post-project2 management and maintenance cost=
     
|Post-project management and maintenance Lead organisation=
      Leek and District Fly Fishing Association
|Post-project management and maintenance Other contact forename=
     
|Post-project management and maintenance Other contact surname=
     
|Monitoring1 cost category=
     
|Monitoring2 cost=
     
|Monitoring Lead organisation=
      Leek and District Fly Fishing Association
|Monitoring Other contact forename=
     
|Monitoring Other contact surname=
     
|Supplementary funding information=
     
}}
}}
{{Motivations
{{Motivations
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}}
}}
{{Measures
{{Measures
|Bank and bed modifications measure=Vegetation cut back
|Bank and bed modifications measure=Vegetation cut back, Weir removal,
|Floodplain / River corridor=Trees felled, Natural debris introduced
|Floodplain / River corridor=Cut back of trees, Introducing large woody debris,
|Planform / Channel pattern=Removal of a weir, Increase in sinuousity,  
|Planform / Channel pattern=Adding sinuosity,
|Social measures=Warning signs provided to stop public removing debris or rebuilding weirs
|Social measures=Information for the public,
}}
}}
{{Hydromorphological_quality_elements_header}}
{{Hydromorphological_quality_elements_header}}
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{{Monitoring_documents}}
{{Monitoring_documents}}
{{Monitoring_documents_end}}
{{Monitoring_documents_end}}
{{Image gallery}}
{{Case study image
|File name=100 0399edited.JPG
|Caption=Example of an existing weir upstream of works, August 2011
}}
{{Case study image
|File name=100 0405.JPG
|Caption=One of the sites of weir removal, August 2011
}}
{{Case study image
|File name=100 0404.JPG
|Caption=Introduced woody debris and establishment of vegetation within 12 months, August 2011
}}
{{Case study image
|File name=100 0411.JPG
|Caption=Created riffles
}}
{{Image_gallery_end}}
{{Additional_Documents}}
{{Additional_Documents}}
{{Additional_Documents_end}}
{{Additional_Documents_end}}
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}}
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{{Case_study_upload}}
{{Case_study_upload}}
{{Toggle content end}}

Latest revision as of 15:00, 2 January 2019

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Location: 53° 2' 0.13" N, 1° 45' 39.48" W
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Project overview

Edit project overview
Status Complete
Project web site
Themes Habitat and biodiversity, Hydromorphology, Land use management - agriculture, Monitoring, Spatial planning
Country England
Main contact forename Alex
Main contact surname Swann
Main contact user ID
Contact organisation Leek and District Fly Fishing Association
Contact organisation web site
Partner organisations
Parent multi-site project
This is a parent project
encompassing the following
projects
No
River Dove downstream of weir removal, with introduced woody debris

Project summary

Edit project overview to modify the project summary.


The Leek and District Fly Fishing Association (LDFFA) undertook work to remove an artificial weir in an attempt to restore a more natural flow to the river. The river was also 're-wilded' to introduce woody debris and other material to enhance fish habitats.

Warning signs provided to stop public removing debris or rebuilding weirs.

Monitoring surveys and results

This case study hasn’t got any Monitoring survey and results, you can add some by editing the project overview.

Lessons learnt

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Image gallery


Example of an existing weir upstream of works, August 2011
One of the sites of weir removal, August 2011
Introduced woody debris and establishment of vegetation within 12 months, August 2011
Created riffles
ShowHideAdditionalImage.png


Catchment and subcatchment

Catchment

River basin district Humber
River basin Dove

Subcatchment

River name R Maniford/Dove from R Hamps to R Churnet
Area category 100 - 1000 km²
Area (km2)
Maximum altitude category 200 - 500 m
Maximum altitude (m) 357357 m <br />0.357 km <br />35,700 cm <br />
Dominant geology Calcareous
Ecoregion Great Britain
Dominant land cover Improved grassland
Waterbody ID GB104028052670



Site

Name Dovedale
WFD water body codes GB104028052670
WFD (national) typology
WFD water body name R Maniford/Dove from R Hamps to R Churnet
Pre-project morphology Single channel, Impounded, High width:depth, Embanked
Reference morphology Single channel, Pool-riffle
Desired post project morphology
Heavily modified water body Yes
National/international site designation UK - Site of Special Scientific Interest
Local/regional site designations Area of Special Conservation Interest
Protected species present No
Invasive species present No
Species of interest
Dominant hydrology Artificially regulated
Dominant substrate Gravel, Silt
River corridor land use Woodland, Extensive agriculture
Average bankfull channel width category 10 - 50 m
Average bankfull channel width (m)
Average bankfull channel depth category 5 - 10 m
Average bankfull channel depth (m)
Mean discharge category
Mean annual discharge (m3/s)
Average channel gradient category
Average channel gradient
Average unit stream power (W/m2)


Project background

Reach length directly affected (m) 1000 m1 km <br />100,000 cm <br />
Project started 2010/07/01
Works started
Works completed 2010/08/01
Project completed
Total cost category 1 - 10 k€
Total cost (k€) 2 k€2,000 € <br />
Benefit to cost ratio
Funding sources Leek and District Fly Fishing Association

Cost for project phases

Phase cost category cost exact (k€) Lead organisation Contact forename Contact surname
Investigation and design Leek and District Fly Fishing Association
Stakeholder engagement and communication Leek and District Fly Fishing Association
Works and works supervision Leek and District Fly Fishing Association
Post-project management and maintenance Leek and District Fly Fishing Association
Monitoring Leek and District Fly Fishing Association



Reasons for river restoration

Mitigation of a pressure Reservoir impoundment, Abundant weirs
Hydromorphology Substrate conditions, Channel pattern/planform, Quantity & dynamics of flow
Biology Fish: Species composition, Fish: Abundance
Physico-chemical
Other reasons for the project Improvement of ecological value, Enhancement of natural flow


Measures

Structural measures
Bank/bed modifications Vegetation cut back, Weir removal
Floodplain / River corridor Cut back of trees, Introducing large woody debris
Planform / Channel pattern Adding sinuosity
Other
Non-structural measures
Management interventions
Social measures (incl. engagement) Information for the public
Other


Monitoring

Hydromorphological quality elements

Element When monitored Type of monitoring Control site used Result
Before measures After measures Qualitative Quantitative
Substrate conditions Yes Yes Yes Improvement

Biological quality elements

Element When monitored Type of monitoring Control site used Result
Before measures After measures Qualitative Quantitative
Fish: Species composition Yes Yes Yes Awaiting results
Fish: Abundance Yes Yes Yes Awaiting results

Physico-chemical quality elements

Element When monitored Type of monitoring Control site used Result
Before measures After measures Qualitative Quantitative

Any other monitoring, e.g. social, economic

Element When monitored Type of monitoring Control site used Result
Before measures After measures Qualitative Quantitative


Monitoring documents



Additional documents and videos


Additional links and references

Link Description
http://www.therrc.co.uk/case studies/dove%20at%20dovedale.pdf River Restoration Centre Case Study

Supplementary Information

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