Case study:River Pool Linear Park Enhacement: Difference between revisions

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{{Case study status
{{Case study status
|Approval status=Draft
|Approval status=Approved
}}
}}
{{Location
{{Location
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{{Project overview
{{Project overview
|Status=Complete
|Status=Complete
|Themes=Habitat and biodiversity, Land use management - fisheries
|Themes=Fisheries, Habitat and biodiversity
|Country=England
|Country=England
|Main contact forename=Nick
|Main contact forename=Vic
|Main contact surname=Elbourne
|Main contact surname=Richardson
|Contact organisation=River Restoration Centre
|Contact organisation=Thames21
|Contact organisation url=www.therrc.co.uk
|Contact organisation url=www.thames21.org.uk/
|Partner organisations=Thames21
|Partner organisations=River Restoration Centre, Environment Agency,
|Multi-site=No
|Multi-site=No
|Project picture=P1020376.JPG
|Picture description=River Pool mid-restoration, April 2012
|Project summary=This section of the River Pool was featureless with very little marginal vegetation. The channel was overshadowed and habitat for fish and invertebrates was limited. In a built up borough of London, the river is flashy and the aim was to design works that would account for this, while improving the in-stream condition and the wider river corridor. This was achieved through the creation of berms on alternating banks, created using wood felled on-site. The berms were positioned in a manner to encourage the creation of pool and riffle sequences to further diversify flow conditions.
|Project summary=This section of the River Pool was featureless with very little marginal vegetation. The channel was overshadowed and habitat for fish and invertebrates was limited. In a built up borough of London, the river is flashy and the aim was to design works that would account for this, while improving the in-stream condition and the wider river corridor. This was achieved through the creation of berms on alternating banks, created using wood felled on-site. The berms were positioned in a manner to encourage the creation of pool and riffle sequences to further diversify flow conditions.


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series of berms on alternating banks along a section of 300m constructed from site-won wood felled along this section
series of berms on alternating banks along a section of 300m constructed from site-won wood felled along this section
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}}
{{Image gallery}}
{{Case study image
|File name=P1020351.JPG
|Caption=The restored river, complete with berms. April 2012
}}
{{Case study image
|File name=P1020361.JPG
|Caption=Use of willow to create berm. April 2012
}}
{{Case study image
|File name=P1020358.JPG
|Caption=Group of Thames21 volunteers in action. April 2012
}}
{{Case study image
|File name=P1020354r.JPG
|Caption=Volunteer creating one of the berms. April 2012
}}
{{Case study image
|File name=P1020378.JPG
|Caption=Created berm, filled with spoil. April 2012
}}
{{Image gallery end}}
{{Toggle button}}
{{Toggle content start}}
{{Case study subcatchment
{{Case study subcatchment
|Subcatchment=Ravensbourne
|Subcatchment=Pool River
}}
}}
{{Site
{{Site
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|Invasive species present=No
|Invasive species present=No
}}
}}
{{Project background}}
{{Project background
{{Motivations}}
|Reach length directly affected=300 m
{{Measures}}
|Project started=2011/11/01
|Project completed=2012/05/31
|Total cost category=Less than 1 k€
|Total1 cost=0.6 k€
|Stakeholder1 engagement cost category=Less than 1 k€
|stk engagement cost=0
|Stakeholder engagement Lead organisation=Thames21
|Works1 and supervision cost category=Less than 1 k€
|Wrk and supervision cost=0
|Works and supervision Lead organisation=Thames21
|Supplementary funding information=A very low cost project thanks to: <br>
- The Environment Agency provided the spoil used in the project from a nearby site (free of charge).<br>
- Free voluntary labour <br>
- Site-sourced tree material <br>
}}
{{Motivations
|Hydromorphological quality elements=Quantity & dynamics of flow,
|Biological quality elements=Fish: Abundance,
|Other motivation=Improving a local park,
}}
{{Measures
|Bank and bed modifications measure=Creation of berms,
|Wider stakeholder / citizen engagement=Participation in works, Participation in maintenance,
}}
{{Hydromorphological quality elements header}}
{{Hydromorphological quality elements header}}
{{End table}}
{{End table}}
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{{Monitoring documents}}
{{Monitoring documents}}
{{Monitoring documents end}}
{{Monitoring documents end}}
{{Image gallery}}
 
{{Image gallery end}}
{{Additional Documents}}
{{Additional Documents}}
{{Additional Documents end}}
{{Additional Documents end}}
{{Additional links and references header}}
{{Additional links and references header}}
{{Additional links and references
|Link=www.therrc.co.uk/case_studies/river%20pool%20case%20study.pdf
|Description=River Restoration Centre Case Study
}}
{{Additional links and references footer}}
{{Additional links and references footer}}
{{Supplementary Information}}
{{Supplementary Information
|Information=Thames21 website for more information on their work: www.thames21.org.uk
}}
{{Toggle content end}}

Latest revision as of 10:47, 15 October 2013

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Location: 51° 26' 0.81" N, 0° 1' 42.12" W
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Project overview

Edit project overview
Status Complete
Project web site
Themes Fisheries, Habitat and biodiversity
Country England
Main contact forename Vic
Main contact surname Richardson
Main contact user ID
Contact organisation Thames21
Contact organisation web site http://www.thames21.org.uk/
Partner organisations River Restoration Centre, Environment Agency
Parent multi-site project
This is a parent project
encompassing the following
projects
No
River Pool mid-restoration, April 2012

Project summary

Edit project overview to modify the project summary.


This section of the River Pool was featureless with very little marginal vegetation. The channel was overshadowed and habitat for fish and invertebrates was limited. In a built up borough of London, the river is flashy and the aim was to design works that would account for this, while improving the in-stream condition and the wider river corridor. This was achieved through the creation of berms on alternating banks, created using wood felled on-site. The berms were positioned in a manner to encourage the creation of pool and riffle sequences to further diversify flow conditions.

The works were built entirely by volunteers, organised through the Thames21 project. The empowerment of local volunteers fosters understanding, and long-term, there is a greater aspiration to re-visit and maintain the works. Additionally, the use of volunteers and on-site materials kept costs very low, with the whole project costing in the region of £500 (€625).

series of berms on alternating banks along a section of 300m constructed from site-won wood felled along this section

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

This case study hasn’t got any lessons learnt, you can add some by editing the project overview.


Image gallery


The restored river, complete with berms. April 2012
Use of willow to create berm. April 2012
Group of Thames21 volunteers in action. April 2012
Volunteer creating one of the berms. April 2012
Created berm, filled with spoil. April 2012
ShowHideAdditionalImage.png


Catchment and subcatchment

Catchment

River basin district Thames
River basin London

Subcatchment

River name Pool River
Area category 10 - 100 km²
Area (km2)
Maximum altitude category 100 - 200 m
Maximum altitude (m) 155155 m <br />0.155 km <br />15,500 cm <br />
Dominant geology Calcareous
Ecoregion Great Britain
Dominant land cover Suburban
Waterbody ID GB106039023250



Other case studies in this subcatchment: Bell Green Weir fish passage


Site

Name River Pool
WFD water body codes GB106039023250
WFD (national) typology
WFD water body name Pool River
Pre-project morphology
Reference morphology
Desired post project morphology
Heavily modified water body No
National/international site designation
Local/regional site designations
Protected species present No
Invasive species present No
Species of interest
Dominant hydrology
Dominant substrate
River corridor land use
Average bankfull channel width category
Average bankfull channel width (m)
Average bankfull channel depth category
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) 300 m0.3 km <br />30,000 cm <br />
Project started 2011/11/01
Works started
Works completed
Project completed 2012/05/31
Total cost category Less than 1 k€
Total cost (k€) 0.6 k€600 € <br />
Benefit to cost ratio
Funding sources

Cost for project phases

Phase cost category cost exact (k€) Lead organisation Contact forename Contact surname
Investigation and design
Stakeholder engagement and communication Less than 1 k€ 00 k€ <br />0 € <br /> Thames21
Works and works supervision Less than 1 k€ 00 k€ <br />0 € <br /> Thames21
Post-project management and maintenance
Monitoring

Supplementary funding information

A very low cost project thanks to:
- The Environment Agency provided the spoil used in the project from a nearby site (free of charge).
- Free voluntary labour
- Site-sourced tree material



Reasons for river restoration

Mitigation of a pressure
Hydromorphology Quantity & dynamics of flow
Biology Fish: Abundance
Physico-chemical
Other reasons for the project Improving a local park


Measures

Structural measures
Bank/bed modifications Creation of berms
Floodplain / River corridor
Planform / Channel pattern
Other
Non-structural measures
Management interventions
Social measures (incl. engagement)
Other Participation in works, Participation in maintenance


Monitoring

Hydromorphological quality elements

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

Biological quality elements

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

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/river%20pool%20case%20study.pdf River Restoration Centre Case Study

Supplementary Information

Edit Supplementary Information

Thames21 website for more information on their work: www.thames21.org.uk