Cookham Lock Sluice Works 2026: river closure notice
Published 8 September 2026
© Crown copyright 2026
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When
Monday 21 and Tuesday 22 September 2026.
Where
Cookham Lock.
Details
Cookham Lock is currently closed to navigation outside of Lock and Weir Keeper hours.
Cookham Lock will be closed to navigation during the above dates to enable engineers to undertake safety critical repair work to the lock gate sluices.
No passage through the look will be possible at any time stated above whilst works are ongoing.
If the work is completed on 22 September, the lock will reopen as normal.
Should additional time be required, the repairs will continue with disruptions to navigation. During this period, the lock will open from 9am to 9:30am, 12pm to 1pm and 5pm to 5:30pm.
This notice will be updated on 22 September to confirm whether the lock can be operated outside of Lock and Weir Keeper hours using the public power facility.
We apologise for any inconvenience these works cause and thank you for your patience during this time.
Byelaws
Nothing contained in these directions shall supersede those parts of the Thames Navigation Licensing and General Byelaws 1993 and the UK Merchant Shipping (Distress Signals and Prevention of Collisions) Regulations 1996 as may be relevant. Particular attention should be paid to byelaws 24-42 of the Thames Navigation Licensing and General Byelaws 1993, Steering Sailing and Speed.
And Notice is hereby given, that it is provided by Byelaw 52 of the Thames Navigation Licensing and General Byelaws 1993 that:
The master of any vessel shall except in an emergency not pass any boat-race regatta public procession or gathering for the launch of a vessel or any other event or function which may cause a crowd to assemble on or by the river nor station his vessel thereon in such a manner as would risk obstructing impeding or interfering with such boat-race regatta procession launching event or function or endangering the safety of persons assembling on the river or preventing or interfering with the maintenance of order thereon.
The maximum penalty for breach of the Byelaws is £1,000.
Read our Thames Navigation Licensing and General Byelaws 1993.