Statutory guidance

SR2015 No 27: constructing an outfall pipe up to 500mm diameter through a headwall into a main river

Standard rules for constructing an outfall pipe up to 500mm diameter through a headwall into a main river.

From:
Environment Agency
Published
6 April 2016
Last updated
31 July 2019 — See all updates

Applies to England

Documents

SR2015 No 27: constructing an outfall pipe up to 500mm diameter through a headwall into a main river

Ref: LIT 10433

PDF, 326 KB, 6 pages

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Generic risk assessment for SR2015 No 27

Ref: LIT 10447

MS Excel Spreadsheet, 20.1 KB

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Details

These rules allow you to construct an outfall pipe of no more than 500 millimetres diameter through a headwall affecting no more than 1.5 metres of the river bank on a main river.

If the diameter of the outfall is less than 300mm you may be able to register an exemption.

These rules do not allow you to construct outfalls on or within:

  • 8 metres of a flood defence
  • 50m of another outfall structure on the same river bank

You must not carry out these activities during the fish breeding season.

Published 6 April 2016
Last updated 31 July 2019 + show all updates

  1. Updated operational conditions and screening distances associated with each standard rule. The aim of this is to improve the uptake of flood risk standard rules permits.

  2. First published.

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