# The Hornsea Four Offshore Wind Farm Order 2023, Paragraph 2

Extent: E+W+S

In this Part of this Schedule—
“construction” includes execution, placing, altering, replacing, relaying and removal and excavation and “construct” and “constructed” is to be construed accordingly;
“drainage authority” means in relation to an ordinary watercourse, the drainage board concerned within the meaning of section 23 (prohibition on obstructions etc. in watercourses) of the Land Drainage Act 1991;
“drainage work” means any ordinary watercourse and includes any bank, wall, embankment or other structure, or any appliance, constructed or used for land drainage or flood defence in connection with an ordinary watercourse which is the responsibility of the drainage authority;
“independent review” means a review carried out by a third party confirming the findings of the undertaker in the assessment of the impact of the proposed specified work on flood risk;
“ordinary watercourse” has the meaning given by section 72 (interpretation) of the Land Drainage Act 1991;
“plans” includes any information reasonably required by the drainage authority including location details, grid references, sections, drawings, specifications, assessments and method statements; and
“specified work” means so much of any work or operation authorised by this Order as is in, on, under over or within 9 metres of a drainage work and which comprises any of the following works carried out in relation to or which may affect any ordinary watercourse—
(a)the erection of any mill, dam, weir, or other similar obstruction to the flow of an ordinary watercourse, or raising or otherwise altering any such obstruction;
(b)the construction or installation of a bridge or other structure;
(c)the erection of a culvert in an ordinary watercourse;
(d)the alteration of an ordinary watercourse or a culvert or other form of drainage infrastructure in a manner that would be likely to affect the flow of an ordinary watercourse;
(e)the introduction by means of any channel, siphon, pipeline or sluice or by any other means whatsoever of any water into any ordinary watercourse within the Order limits so as to directly or indirectly increase the flow or volume of water in any ordinary watercourse within the Order limits without the previous consent of the drainage authority;
(f)any work likely to obstruct flow or adversely affect the integrity of any embankment, wall or enclosing structure containing an ordinary watercourse.

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Source: https://www.legislation.gov.uk/uksi/2023/800/schedule/9/part/6/paragraph/2 (the official version)
Page: https://openlegislation.uk/hornsea-four-offshore-wind-farm-order-2023/schedule-9/part-6/paragraph-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.