Cosgrove Lock 21


From Date: 03/06/2019 10:00

To Date: 30/08/2019 00:00 inclusive

Type: Navigation Restriction

Reason: Water resources

Is the towpath closed? No


Closest waterway: Grand Union Canal

Starts at: Lock 21, Cosgrove Lock

Ends at: Lock 21, Cosgrove Lock


Levels within reservoirs feeding the Leicester Summit and Grand Union Mainline are lower than usual for the time of year following below average rainfall over the last eleven months.

In order to maximise the available water the Trust is taking the sensible precaution of locking targeted locks up overnight. This measure is intended to reduce the potential for water losses overnight and allow backpumps more time to transfer water from the Braunston Summit onto the Leicester Summit.

Boaters also have a really important role to play and we ask that they help us to save water by making sure that all gates and paddles are closed after use, sharing a lock if possible and waiting for oncoming boats where appropriate.  

For more water saving tips go to

From the 3rd June, lock opening hours will be:

10am to 4pm