Maintenance of structures within the channel of a main riverE+W
9.—(1) The maintenance of structures within the channel of a main river other than raised river or sea defences.
(2) For the purposes of this paragraph, the specific conditions are—
(a)the maintenance works do not alter any dimension of the structure,
(b)the structure is carrying out the functions for which it was originally designed,
(c)the maintenance works use materials of the same kind as those present in the structure,
(d)the maintenance works do not occur between 15th March and 15th June inclusive in any year,
(e)on a main river that is a designated salmonid river, the maintenance works do not occur between 1st October and 14th March inclusive in any year, and
(f)the works do not have a significant adverse effect on species included in a list published by the Secretary of State under section 41 of the Natural Environment and Rural Communities Act 2006, or by Welsh Ministers under section 7 of the Environment (Wales) Act 2016, that are not protected species.