Case study:Hollyoak Wood and Willersley Park: Difference between revisions

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{{Project overview
{{Project overview
|Status=Planned
|Status=Planned
|Themes=Habitat and biodiversity, Hydromorphology
|Themes=Habitat and biodiversity, Hydromorphology, Social benefits
|Country=England
|Country=England
|Main contact forename=Rod
|Main contact forename=Rod
|Main contact surname=Lean
|Main contact surname=Lean
|Contact organisation=London Borough of Bexley
|Contact organisation=London Borough of Bexley
|Partner organisations=Natural England, EA
|Partner organisations=Natural England, Environment Agency,
|Multi-site=No
|Multi-site=No
|Project summary=River bank rehabilitation for morphology and biodiversity; improve visual amenity; improved marginal plant communities; improved continuity in river habitat through riparian planting and modified maintenance regime. 42052 square metres in size.<br>Access river shuttle way linear walk from source to confluence with the River Cray; 11 opportunities have been identified to improve River Shuttle. A masterplan is currently being developed to improve the River Shuttle and the surrounding parkland in  Hollyoak and Willersely  and Marlbrough Parks.
|Project summary=River bank rehabilitation for morphology and biodiversity; improve visual amenity; improved marginal plant communities; improved continuity in river habitat through riparian planting and modified maintenance regime. 42052 square metres in size.<br>Access river shuttle way linear walk from source to confluence with the River Cray; 11 opportunities have been identified to improve River Shuttle. A masterplan is currently being developed to improve the River Shuttle and the surrounding parkland in  Hollyoak and Willersely  and Marlbrough Parks.
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{{Case_study_subcatchment
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|Subcatchment=
|Subcatchment=Shuttle
   
   
   
   
   
   
     
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{{Site
{{Site
|Name=
|WFD water body code=GB106040024210
   
|WFD water body name=Shuttle
   
|Heavily modified water body=No
     
|Protected species present=No
|WFD water body code=
|Invasive species present=No
     
|WFD (national) typology=
     
|WFD water body name=
     
|Pre-project morphology=
     
|Reference morphology=
     
|Heavily modified water body=
     
|Local site designation=
     
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|Protected species present=
     
|Invasive species present=
     
|Species=
     
|Dominant hydrology=
     
|Dominant substrate=
     
|River corridor land use=
     
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{{Project_background
{{Project background
|Reach length directly affected=
|Reach length directly affected=1012 m
   
|Project started=2008/01/01
   
|Total cost category=100 - 500 k€
      1012 m
|Funding sources=London Borough of Bexley, LDA
|Project started=
      2008/01/01
|Works started=
     
|Works completed=
     
|Project completed=
     
|Total cost category=
     
|Total1 cost=
     
|Funding sources=
     
|Investigation and design cost category=
     
|Invst and design cost=
     
|Investigation and design Lead organisation=
     
|Investigation and design Other contact forename=
     
|Investigation and design Other contact surname=
     
|Stakeholder1 engagement cost category=
     
|stk engagement cost=
     
|Stakeholder engagement Lead organisation=
     
|Stakeholder engagement Other contact forename=
     
|Stakeholder engagement Other contact surname=
     
|Works1 and supervision cost category=
     
|Wrk and supervision cost=
     
|Works and supervision Lead organisation=
     
|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=
     
|Post-project management and maintenance Other contact forename=
     
|Post-project management and maintenance Other contact surname=
     
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|Supplementary funding information=
     
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{{Motivations
{{Motivations
|Hydromorphological quality elements=
|Specific mitigation=Riparian development
   
|Hydromorphological quality elements=Continuity for organisms
   
|Other motivation=Recreation
     
|Biological quality elements=
     
|Physico-chemical quality elements=
     
|Specific mitigation=
     
|Other motivation=
     
}}
}}
{{Measures
{{Measures
|Bank and bed modifications measure=
|Bank and bed modifications measure=Bank reprofiling
   
|Social measures=Aesthetics, Improved public access
   
     
|Floodplain / River corridor=
     
|Planform / Channel pattern=
     
|Other technical measure=
     
|Management interventions=
     
|Social measures=
     
|Wider stakeholder / citizen engagement=
     
}}
}}
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{{Hydromorphological_quality_elements_header}}

Latest revision as of 15:02, 6 June 2017

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Location: 51° 26' 46.67" N, 0° 5' 22.21" E
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Project overview

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Status Planned
Project web site
Themes Habitat and biodiversity, Hydromorphology, Social benefits
Country England
Main contact forename Rod
Main contact surname Lean
Main contact user ID
Contact organisation London Borough of Bexley
Contact organisation web site
Partner organisations Natural England, Environment Agency
Parent multi-site project
This is a parent project
encompassing the following
projects
No
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Project summary

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River bank rehabilitation for morphology and biodiversity; improve visual amenity; improved marginal plant communities; improved continuity in river habitat through riparian planting and modified maintenance regime. 42052 square metres in size.
Access river shuttle way linear walk from source to confluence with the River Cray; 11 opportunities have been identified to improve River Shuttle. A masterplan is currently being developed to improve the River Shuttle and the surrounding parkland in Hollyoak and Willersely and Marlbrough Parks.

Monitoring surveys and results

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Lessons learnt

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Catchment and subcatchment

Catchment

River basin district Thames
River basin Darent

Subcatchment

River name Shuttle
Area category 10 - 100 km²
Area (km2)
Maximum altitude category 100 - 200 m
Maximum altitude (m) 106106 m <br />0.106 km <br />10,600 cm <br />
Dominant geology Siliceous
Ecoregion Great Britain
Dominant land cover Suburban
Waterbody ID GB106040024210



Other case studies in this subcatchment: Parish Wood Park, River Shuttle Enhancement Works - Love Lane, River Shuttle Enhancement Works - Malborough Park


Site

Name
WFD water body codes GB106040024210
WFD (national) typology
WFD water body name Shuttle
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) 1012 m1.012 km <br />101,200 cm <br />
Project started 2008/01/01
Works started
Works completed
Project completed
Total cost category 100 - 500 k€
Total cost (k€)
Benefit to cost ratio
Funding sources London Borough of Bexley, LDA

Cost for project phases

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



Reasons for river restoration

Mitigation of a pressure Riparian development
Hydromorphology Continuity for organisms
Biology
Physico-chemical
Other reasons for the project Recreation


Measures

Structural measures
Bank/bed modifications Bank reprofiling
Floodplain / River corridor
Planform / Channel pattern
Other
Non-structural measures
Management interventions
Social measures (incl. engagement) Aesthetics, Improved public access
Other


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

Supplementary Information

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