Paragraph 1 I1

The following provisions apply for the protection of the drainage authority unless otherwise agreed in writing between the undertaker and the drainage authority.

In this Part of this Schedule—

• “construction” includes execution, placing, altering, replacing, relaying and removal and “construct” and “constructed” are construed accordingly;

• “drainage authority” means in relation to an ordinary water course the drainage board concerned within the meaning of section 23 of the Land Drainage Act 1991 and in relation to a main river or any sea defence work means the Environment Agency;

• “drainage work” means any watercourse other than the river Humber and includes any land which provides or is expected to provide flood storage capacity for any watercourse and any bank, wall, embankment or other structure, or any appliance, constructed or used for land drainage or flood defence;

• “a main river” and “ordinary watercourse” have the meanings given by respectively the Water Resources Act 1991 and the Land Drainage Act 1991;

• “plans” includes sections, drawings, specifications and method statements;

• “specified work” means so much of any work or operation authorised by this Order as is in, on, under, over or within 16 metres of a drainage work or is otherwise likely to affect any drainage work.