River Mardyke

This stretch of river is predominantly grassland, some of which is grazed by horses. There is footpath access along the south bank, and the river channel itself has been modified in the past.

The area (land use)

The dominant land use for this stretch of river is rough grassland.

Horses were the main livestock recorded.

Channel characteristics

The river channel consists of mainly silt, and riffles are present.

At the time of recording the flow of water was sluggish and the channel was 2-5m wide and 0.5-1m in depth.

For most of this stretch the channel profile is steep.

Bankside trees were occasional, marginal plants and in-channel plants are frequent. Woody debris was noted to be rare.


The channel has been straightened and man-made enhancements are present along this stretch of river.

Field drains were recorded as present and barriers / culverts are present.


Areas of trampling / poaching were present in the downstream section only and areas of erosion were absent at the time of the survey.


Mallard, Moorhen, and Ring-necked Parakeet were seen during the survey.



River Mardyke

Date completed


Upstream Grid ref (red marker)


Downstream Grid ref (green marker)


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