Essex Rivers Hub

Blackwater; Bridge Hall Road, Bradwell

This section of river has a natural structure which is fed by natural springs on the north bank. These natural springs have also created wetland areas on the north bank so the ground is quite marshy in places. The south bank is a grazing pasture so there is limited vegetation on that bank but the north bank is a combination of mixed vegetation common to river banks and also used as a Cricket Bat Willow plantation.

The area (land use)

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

No livestock were recorded.

Channel characteristics

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

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

For most of this stretch the channel profile is steep.

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

Engineering

The channel has not been straightened and man-made enhancements are present along this stretch of river.

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

Condition

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

Wildlife

During the survey Orange Tip Butterflies and Mallards (with ducklings) were seen and tracks from a Muntjac Deer were also seen

Additional Information

The water was a brown colour at the time of the survey suggesting it has a high silt content.

There are 2 road bridges crossing this section, one being the A120 so quite a busy road, and some housing on the south bank at the furthest point downstream. Near the housing there is some reinforcement in the form of garden decking.

 

RBD/catchment/river/tributary

River Blackwater

Date completed

April 2014

Upstream Grid ref

TL8015123803

Downstream Grid ref

TL8069523154

Website key stakeholders:

Environment Agency logo      Essex Wildlife Trust logo            Essex Biodiversity Project logo

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