Essex Rivers Hub

This section is split between the main river and the Mill Race. The Mill Race has a slow flow with deep water and is very straight. The main river has a more natural structure with meanders, medium flow and shallow water. Both the Mill race and the main river have natural banks with a narrow strip of vegetation before amenity grass and a footpath begin. There are some trees in the section so there are small areas of shade along the channel.

The area (land use)

The dominant land use for this stretch of river is pasture and suburban.

No livestock were recorded.

Channel characteristics

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

At the time of recording the flow of water was Array and the channel was Array wide and Array in depth.

For most of this stretch the channel profile is steep.

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


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

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


Areas of trampling / poaching were Array and areas of erosion were Array at the time of the survey.


The following were seen or heard during the survey: Grey Heron, Blackcap, Chiff Chaff, Partridge, Green Woodpecker and Orange Tip Butterflies.

Additional Information

There are 2 weirs in the section, one weir the Mill Race begins and one where the Mill Race re-joins the main river. Both of these will be significant barriers to fish. The water appears brown at the time of the survey so the silt content may be quite high. In-channel plants were also present in the Mill Race.

There are some houses in the upstream section before the Mill race begins and the river flows through some of the gardens.


River Blackwater

Date completed


Upstream Grid ref


Downstream Grid ref


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