Ordinary Watercourse Consent
As a Lead Local Flood Authority (LLFA), the Isle of Wight Council is responsible for managing local flood risk and this now includes ordinary watercourse consenting and enforcement activities. Section 23 of the Land Drainage Act (1991) as amended by the Flood and Water Management Act (2010) states:
No person shall-
(i) Erect any mill dam, weir or other like obstruction to the flow of any ordinary watercourse or raise or otherwise alter any such obstruction; or
(ii) Erect a culvert in an ordinary watercourse; or
(iii) Alter a culvert in a manner that would be likely to affect the flow of an ordinary watercourse, without the consent in writing of the drainage board concerned.
Not all works will require consent. Only those which are likely to alter or impact the flow or storage of water, or erection of a culvert within an ordinary watercourse will require consent. (Note: flow should be determined as bank full flow conditions).
For full detail see the link below: