Case study:Teddington Wharf: Difference between revisions

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|Main contact forename=Joanna
|Main contact forename=Joanna
|Main contact surname=Heisse
|Main contact surname=Heisse
|Contact organisation=Environment Agency
|Multi-site=No
|Multi-site=No
|Project summary=Aims of project:<br>- enhanced tidal defences<br>- conservation enhancements<br>- flood storage<br><br>Work undertaken:<br>- closure of three floodgates<br>- replacement of part of river wall<br>- provision of riverside walkway<br>- planting between river edge and buildings<br>The site adjacent to the river Thames in Teddington was a famous boatyard for several decades.  A mixed development was proposed on the site.  However, part of the development is in the floodplain.  In consultation with the environment agency it was decided to set the flood defences away from the river frontage and part of the ground flood of one buildinghas been left ‘open’ to the tide.  These measures enable flood storage on the redevelopment site to be unchanged form the original site.
|Project summary=Aims of project:<br>- enhanced tidal defences<br>- conservation enhancements<br>- flood storage<br><br>Work undertaken:<br>- closure of three floodgates<br>- replacement of part of river wall<br>- provision of riverside walkway<br>- planting between river edge and buildings<br>The site adjacent to the river Thames in Teddington was a famous boatyard for several decades.  A mixed development was proposed on the site.  However, part of the development is in the floodplain.  In consultation with the environment agency it was decided to set the flood defences away from the river frontage and part of the ground flood of one buildinghas been left ‘open’ to the tide.  These measures enable flood storage on the redevelopment site to be unchanged form the original site.
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{{Case study subcatchment
{{Case study subcatchment
|Subcatchment=Thames (London)
|Subcatchment=Thames (Egham to Teddington)
}}
}}
{{Site
{{Site
|Name=
|WFD water body code=GB106039023232
   
|WFD water body name=Thames (Egham to Teddington)
   
|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=
     
|Site designation=
     
|Protected species present=
     
|Invasive species present=
     
|Species=
     
|Dominant hydrology=
     
|Dominant substrate=
     
|River corridor land use=
     
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{{Motivations
{{Motivations
|Hydromorphological quality elements=
|Specific mitigation=Flood risk management
   
|Other motivation=Recreation
   
     
|Biological quality elements=
     
|Physico-chemical quality elements=
     
|Specific mitigation=
     
|Other motivation=
     
}}
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{{Measures
{{Measures
|Bank and bed modifications measure=
|Bank and bed modifications measure=Removing of concrete structures
   
|Social measures=Improved public access
   
     
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}}
}}
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{{Hydromorphological_quality_elements_header}}

Latest revision as of 10:14, 18 February 2016

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Location: 51° 25' 46.44" N, 0° 19' 26.93" W
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Project overview

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Status Complete
Project web site
Themes Environmental flows and water resources, Flood risk management, Habitat and biodiversity
Country England
Main contact forename Joanna
Main contact surname Heisse
Main contact user ID
Contact organisation Environment Agency
Contact organisation web site
Partner organisations
Parent multi-site project
This is a parent project
encompassing the following
projects
No
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Project summary

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Aims of project:
- enhanced tidal defences
- conservation enhancements
- flood storage

Work undertaken:
- closure of three floodgates
- replacement of part of river wall
- provision of riverside walkway
- planting between river edge and buildings
The site adjacent to the river Thames in Teddington was a famous boatyard for several decades. A mixed development was proposed on the site. However, part of the development is in the floodplain. In consultation with the environment agency it was decided to set the flood defences away from the river frontage and part of the ground flood of one buildinghas been left ‘open’ to the tide. These measures enable flood storage on the redevelopment site to be unchanged form the original site.

Monitoring surveys and results

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Lessons learnt

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Catchment and subcatchment

Catchment

River basin district Thames
River basin Maidenhead to Sunbury

Subcatchment

River name Thames (Egham to Teddington)
Area category 1000 - 10000 km²
Area (km2)
Maximum altitude category Less than 100 m
Maximum altitude (m) 7171 m <br />0.071 km <br />7,100 cm <br />
Dominant geology Calcareous
Ecoregion Great Britain
Dominant land cover Suburban
Waterbody ID GB106039023232



Other case studies in this subcatchment: Broom Road Recreation Ground, Chertsey meads, Hampton Court Palace, Hurst Park, The Barge Walk, Hampton Court


Site

Name
WFD water body codes GB106039023232
WFD (national) typology
WFD water body name Thames (Egham to Teddington)
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)
Project started
Works started
Works completed
Project completed
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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 Flood risk management
Hydromorphology
Biology
Physico-chemical
Other reasons for the project Recreation


Measures

Structural measures
Bank/bed modifications Removing of concrete structures
Floodplain / River corridor
Planform / Channel pattern
Other
Non-structural measures
Management interventions
Social measures (incl. engagement) 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

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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



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Supplementary Information

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