# Drainage (Northern Ireland) Order 1973, Paragraph 12

Extent: N.I.

In this Schedule—
“construction” includes any embankment, wall, valve or sluice connected with a watercourse, and also includes any fencing or other erection or thing interfering, or likely to interfere, with the free flow of the watercourse;
“scour out and cleanse” includes the cutting, topping or removal of any tree, the removal of any obstruction, construction, accretion, silt, deposit or fall, where such removal is necessary to restore the normal depth or width of a watercourse, and the repair and protection of any bank or construction;
“undesignated watercourse” means a watercourse that is not a designated watercourse;
“watercourse” includes a drain or sewer (not being a drain or sewer vested in a sewerage undertaker), where the Ministry is satisfied that the source of contamination has been eliminated from the drain or sewer, but, save as aforesaid, has the meaning assigned to it by Article 2(2).

---
Source: https://www.legislation.gov.uk/nisi/1973/69/schedule/5/paragraph/12 (the official version)
Page: https://openlegislation.uk/drainage-northern-ireland-order-1973/schedule-5/paragraph-12
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.