Essex Rivers Hub

Blackwater; Kelvedon Bridge

Upstream the channel is straightened and reinforced in places where in flows through the urban area surrounded by amenity grassland. Further downstream the surrounding land changes to grassland and arable fields and the channel becomes wider with better vegetated banks.

The area (land use)

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

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 slow and the channel was 2--5m wide and 1-2m in depth.

For most of this stretch the channel profile is flat on the whole but there are areas of.

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

Engineering

The channel has been straightened and man-made enhancements are present in the upstream section only along this stretch of river.

Field drains were recorded as absent and barriers / culverts are Present in the upstream section only.

Condition

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

Wildlife

None seen during the survey.

Additional Information

Urban runoff will be impacting on the water quality in this area and possible runoff from arable land also as the buffer strips between the field and channel are not extensive.

Through this section the channel is very uniform with very few natural features present. There is also a weir which could be a barrier to fish movement.

RBD/catchment/river/tributary

River Blackwater

Date completed

April 2014

Upstream Grid ref

TL8643019731

Downstream Grid ref

TL8657018561

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