Temporary overnight lock closure, Lock 1 Top Lock, Hertford Union, London

Notice Details
From Date:
10th August 2018 at 21:00
To Date:
12th December 2018 at 11:14 inclusive
Navigation Restriction
Water resources
Notice updates:
12/12/2018 @ 11:14
Locks re-opened

Following the long period of dry hot weather there are continued low flows of water from the river tributaries that feed the Grand Union Canal, including the Paddington Arm. This is also the only supply of water for the Regent’s Canal through Hampstead Rd Locks in Camden and this is having a direct impact on the water levels on this long stretch of water (The Paddington Arm). Whenever water is passed through Camden to feed the Regent’s the level drops. Due to these constant low levels we have had to take the difficult decision to put in place temporary overnight lock closures in key locations to preserve water.

The following locks will be closed from Friday 10 August 2018 between 21:00pm - 07:00am  every night.  

 •            Grand Union - Lock 90 Top Lock only.

•             Regent’s - Hampstead Rd Lock both locks

•             Regent’s – Acton’s Lock top gates

•             Regent’s – Old Ford Lock – top gates

•             Regent’s – Mile End Lock -top gates

•             Hertford Union – Lock 1 – top gates

We are monitoring the situation constantly and will look at reopening the locks as soon as practically possible please be patient during this unprecedented time and contact us on 0303 040 4040 for local updates and further information.

You can report any environmental incidents including fish in distress or very low river flows and reservoir levels to our customer service number 0303 040 4040 or 0800 47 999 47 or use the Environment Agency incident hotline 0800 80 70 60 (Freephone, 24-Hours).

You can view the Grand Union - Lock 90 Top Lock notice and its online map here:


You can view the Regents Canal notice and its online map here:




Hertford Union Canal
Starts At:
Lock 1, Top Lock
Ends At:
Lock 1, Top Lock
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