Essex Rivers Hub

At this location there is a sluice gate that controls the water flow between the Mardyke and the Thames. Currently the sluice gates are opened once or twice daily to allow flow into the Thames.

If this was removed the Mardyke would return to its natural state of having an intertidal area. Removal of the sluice would also change the flow of the Mardyke which is currently very sluggish and even static on some occasions.

This is a long term aspiration which will require extensive study to determine the impacts to both the river environments and the surrounding areas.

Please contact us if you have any questions or suggestions regarding this project idea.


River Mardyke

WFD water body status


WFD overall status objective

To achieve Good ecological Status by 2027

Project type

Improve morphology/structural aspects

Benefiting species and/or habitats

Creation of an intertidal area, creating habitat for species that maybe missing currently. Removal of a barrier that currently limits fish and eel migration.

Total area surveyed

The whole Mardyke Valley

Project lead

Essex Wildlife Trust

Contact for more information

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Project partners

Essex Wildlife Trust, Essex Biodiversity Project and the Environment Agency

Funding source

None at present

Website key stakeholders:

Environment Agency logo      Essex Wildlife Trust logo           

Design by LTD Design Consultants and build by Garganey Consulting based on an original concept by Herts and Middlesex Wildlife Trust