Essex Rivers Hub

This area is local authority owned and there is extensive public access, being a popular area with dog walkers. Once the site of Straits Mill, although the mill building has since been demolished, the old mill race still remains. Interpretation boards with information about the Mill are situated near the site.

The area (land use)

The dominant land use for this stretch of river is suburban/urban.

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.


There was evidence of Mallard, Heron, Wren, Goldfinches and butterflies and a large number of herbs including Wild garlic, Meadowsweet, and Dog's mercury recorded at the time of the survey. A grey wagtail and a kingfisher were also recorded here during the walkover surveys.

Additional comments

Erosion is being addressed by a boardwalk. Part of the floodplain was turned into a housing development circa 1998.

This stretch of the river is bordered on the north bank by a fishing lake and old gravel workings, and to the south by recreational grassland and urban/suburban areas.



River Blackwater

Date completed

Spring 2013

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