Essex Rivers Hub

River Colne - Great Yeldham to Doe's Corner Pressures

The table below shows the current pressures that this waterbody faces and the solutions that could be put in place to solve these problems. You can learn more about some of these pressures and solutions on the Environment Agency Catchment Data Explorer or you can contact us to find out more.

PRESSURES

SOLUTIONS

Classified as heavily modified for flood protection.

Appropriate channel maintenance and techniques, which minimise disturbance to channel bed and margins

Barriers are likely to be impacting on fish populations as levels are currently classified as poor.

Increase in channel morphological diversity.
Remove obsolete structures.

Flows are impacted in this water body and only have a classification of moderate.
Flow is most affected in late summer/early morning when they are at their lowest.

Investigate impact on fish levels.
Selective vegetation control at appropriate times.
Sediment management.

Dissolved oxygen levels can be low within this water body resulting in a classification of bad. The levels are particularly affected in late summer and early autumn due to a number of factors including higher sewage concentrations.
Phosphate is classified as moderate in this water body, the exact cause has not been determined at this time.

Investigate whether sewage outlets are exceeding their limits.
Investigate how dissolved oxygen levels are impacting on fish levels.
Investigate sources of phosphate.

Dissolved oxygen levels can be low in this water course, resulting in a classification of bad. The levels are particularly affected in late summer and early autumn due to a number of factors including higher sewage concentrations.
Phosphate is classified as moderate in this water body, the exact cause has not been determined at this time.

Investigate how dissolved oxygen levels are impacting on fish levels.
Investigate sources of phosphate.

  

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