Case study:Rainham Creek Tidal Sluice Removal

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Location: 51° 30' 30.62" N, 0° 10' 30.75" E
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Project overview

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Status Planned
Project web site
Themes Fisheries, Habitat and biodiversity, Social benefits
Country England
Main contact forename Jennifer
Main contact surname Norman
Main contact user ID
Contact organisation
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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Opening up of the creek to the Thames - removal or modification to the tidal sluice. The river is currently impounded.
Poor water quality downstream of Riverside STWs.
Fish and eel movement is almost totally restricted.
Removal would provide the opportunity to creation of BAP habitat; reed, inter-tidal.
The River Lee has been impounded, this could offer alternative migratory routes for fish.
Massive biodiversity gains can be made by removal of one structure.
Possible constraints included, Potentially very costly, FRM risks need to be fully addressed, Conflicting aims from user groups, Currently a waste management facility is present on site, at mouth of the creek.

Monitoring surveys and results

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Lessons learnt

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Catchment and subcatchment

Catchment

River basin district Thames
River basin Roding, Beam and Ingrebourne

Subcatchment

River name Ingrebourne
Area category 10 - 100 km²
Area (km2)
Maximum altitude category 100 - 200 m
Maximum altitude (m) 125125 m <br />0.125 km <br />12,500 cm <br />
Dominant geology Calcareous
Ecoregion Great Britain
Dominant land cover Improved grassland
Waterbody ID GB106037028130



Other case studies in this subcatchment: Dovers Corner, Frog Island, Rainham Creek and Thames Confluence


Site

Name
WFD water body codes GB106037028130
WFD (national) typology
WFD water body name Ingrebourne
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
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Average bankfull channel depth (m)
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Mean annual discharge (m3/s)
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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
Works started
Works completed
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Cost for project phases

Phase cost category cost exact (k€) Lead organisation Contact forename Contact surname
Investigation and design
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Works and works supervision
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Monitoring



Reasons for river restoration

Mitigation of a pressure Barriers to fish migration, Impoundments (not hydropower)
Hydromorphology Structure & condition of intertidal zone
Biology
Physico-chemical
Other reasons for the project


Measures

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


Monitoring

Hydromorphological quality elements

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Before measures After measures Qualitative Quantitative

Biological quality elements

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Physico-chemical quality elements

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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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Additional links and references

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Supplementary Information

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