Rural Sustainable Drainage Systems – Sediment Traps and Bunds

This is an old version of the page

Date published: 11 March, 2016

Date superseded: 17 January, 2017

To see recent changes to this guidance, check the bottom of this page.

The aim of this item is to improve water quality by creating a strategically placed sediment trap and / or bund to intercept run-off that currently discharges direct to a watercourse or freshwater drain.

Any land is eligible, provided that it meets all of the requirements set out below.

You must combine this item with:

Where a sediment trap is to be created to accept run-off from a steading, you must combine this item with:

You can check if this item is available on your holding here.

You must prepare a plan which must include a map of the relevant fields / steading identifying the location of the rural sustainable drainage system feature.

You must also produce a diffuse pollution steading assessment.

  • bund height must be less than 1.3 metres, unless designed by a qualified engineer
  • fencing must be provided to protect people and livestock.
  • only run-off which does not fall within the definition of slurry may be conveyed to a sediment trap / bund *
  • run-off from pesticide handling or washdown areas must not be conveyed to a sediment trap / bund

* Unless the run-off is being conveyed to a constructed farm wetland designed in accordance with the Constructed Farm Wetland Design Manual – Scottish Environment Protection Agency / Northern Ireland Environment Agency – 2008.

You can claim:

  • excavate and form sediment trap – £10.50 per square metre
  • create bund – £7.20 per linear metre

The inspectors will check:

  • the location and extent of the sediment trap
  • the length of the newly created bund
  • bund height is less than 1.3 metres, unless designed by a qualified engineer
  • fencing is provided to protect people and livestock
  • only run-off which does not fall within the definition of slurry is conveyed to a sediment trap / bund *
  • run-off from pesticide handling or wash-down areas is not conveyed to a sediment trap / bund

* Unless the run-off is being conveyed to a constructed farm wetland designed in accordance with the Constructed Farm Wetland Design Manual – Scottish Environment Protection Agency / Northern Ireland Environment Agency – 2008.

Section Change Previous text New text
Application requirements Clarification of requirements. - You must also produce a diffuse pollution steading assessment.

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