River Roach

The channel flows through Cherry Orchard Jubilee Country Park, which is found on the south bank, on the north side is arable fields. The channel has a natural structure with riffles and woody debris creating variations in flow.

The area (land use)

The dominant land use for this stretch of river is arable and recreational grassland.

No livestock were recorded.

Channel characteristics

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

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

For most of this stretch the channel profile is steep and vertically undercut in places.

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


The channel has not been straightened and man-made enhancements are present in the upstream section only along this stretch of river.

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


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


None seen during the survey.

Additional Information

Areas along the bank have become eroded, mainly where they are used by the dogs to enter and leave the channel. Some of these areas are more heavily used by dogs and the erosion is substantial. There are also some erosion points on the opposite bank but these are less pronounced and are probably the result of wild animals, such as deer, entering the channel.

The water was almost foamy at times and this is possibly the result of inputs from the sewage treatment works further upstream.


River Roach

Date completed


Upstream Grid ref (red marker)


Downstream Grid ref (green marker)


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