Lock 11 Peak Forest Canal, Marple

Notice Details
From Date:
26th May 2018 at 10:00
To Date:
until further notice
Navigation Closure
Structure failure
Notice updates:
15/06/2018 @ 15:41

During this week while we have been assisting boats through Lock 11, we have experienced further difficulties with boats over 45ft long getting stuck on the affected area of the lock wall.

To ensure safe passage through lock 11, we can only continue to allow passage for boats up to and including 45ft (13.75m) without restriction.

We appreciate this will only allow a small percentage of boats to use the lock flight and we are very sorry for any inconvenience this may cause. We are working hard to establish a temporary repair that will start on site on the 25th June. The aim of this temporary repair is to enable unrestricted passage through the summer whilst we prepare for a permanent solution to be delivered in the stoppage season. However, there is a risk that this temporary repair will not be successful, which resulting in the lock being closed until we are able to complete the permanent repair.

The lock will be closed to all boat traffic from 25th June while the temporary repair is carried out. We will be able to update further following the attempt at repair on Friday 29th June.

06/06/2018 @ 16:34

As a short-term measure we have successfully moved back the tow path side copings which were causing some of the pinch-points in the lock and we are currently considering how we can address the  movement which has occurred lower down in the chamber wall.  Our immediate aim is to provide a short-term solution which will provide sufficient clearance to enable all boats with a beam of  up to 6’ 10” to safely navigate through the lock. One option that we are investigating is the possibility of  jacking the walls back to provide more clearance and if this proves a feasible option, we will aim to do this as quickly as possible however, we realise that this will not be satisfactory solution in the long-term and so we are currently also undertaking further analysis and design to enable a more permanent repair to be developed.

Having undertaken further investigations we are now in a position to allow supervised passage through Lock 11 (Permitting specific width requirements). There will be no width restriction for boats up to and including 45ft (13.75m) long, boats that are over 45ft long must have a beam of 6”9 or less should be able to navigate through the lock. The lock will be opened and supervised on a daily basis between 9 - 10 in the morning and 3  – 4 in the afternoon. (Subject to change at short notice)

We fully appreciate this will be disappointing for many of our customers, our teams are working to minimise disruption as much as possible.

04/06/2018 @ 16:08

Following on from problems at Lock 11 over the weekend where we have been operating the lock under a restriction, reluctantly we had to take the decision to close the lock after more extensive problems were found in its operation than had been anticipated.

Our engineers and project managers have been assessing things today, and work is ongoing to realign some of the copings.   We will need to review things when this has been completed to decide whether or not we can reopen the lock or if a more extensive repair is going to be needed.

We know that this will be disappointing for people especially with the wait for the other work that that has happened at Marple.  We believe that this is a new issue on the flight, not something longstanding.  We want to assure everyone that we are doing everything that we can to reopen the lock as quickly as possible.

We expect to provide a further update mid week.

03/06/2018 @ 13:37

Unfortunately we have had to closed Lock 11 for the remainder of the day.

A review will be carried out tomorrow and a further update will be issued later in the day.

We apologise for any inconvenience this may cause.

30/05/2018 @ 14:44

Our teams will be carrying out work to Lock 11 tomorrow throughout the day.

Passages will be only available between 11am and 1.30pm.

From Friday onwards, the hours will resume to 10am-4pm.

We're sorry for any inconvenience this may cause.


There appears to have been some movement in the lock wall that could restrict passage for boats over 6”10, therefore lock 11 will only be passable under staff supervision until further notice.

The lock will be closed outside the hours of 10am & 4pm.

We apologise for any inconvenience.

Peak Forest Canal
Starts At:
Lock 11
Ends At:
Lock 11
Up Stream Winding Hole:
Above Lock 12
Down Stream Winding Hole:
Below Lock 8
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