Descriptions
Update 10 September 2026, 11:54am
Recent rainfall has not improved conditions enough to allow the Northampton Arm to fully reopen. However, having reviewed the current situation, we believe that a limited period of navigation can be accommodated without having a significant impact on water resources elsewhere on the Grand Union Canal.
To support boaters and boating businesses, the Northampton Arm will therefore temporarily reopen from 9am on Tuesday 22 September until 3pm on Wednesday 23 September, with the last boats entering Locks 1 and 12 no later than 2pm.
This temporary opening is intended to provide an opportunity for essential boat movements while conditions remain under close review. At the end of this period the Northampton Arm will need to close again.
We will monitor the impact of this opening and continue to assess water availability. While we cannot yet confirm whether further navigation windows will be possible during October, we hope that additional opportunities may be available if conditions allow.
Please continue to check these notices for updates and plan your journey carefully, allowing sufficient time to navigate through restricted areas of the network.
Update 18 August 2026, 11:05am
Due to the ongoing dry weather and drought conditions affecting parts of England, The Northampton Arm remains closed.
We are continuing to monitor conditions and will update this notice as the situation develops.
Original 21 July 2026, 5:29pm
Reservoir holdings feeding the Northampton Arm are lower than normal for the time of year. This is a result of the prolonged dry weather, water loss through evaporation during the heat wave, and, in some instances, paddles being left open or leaks in the infrastructure.
To help us conserve water and maintain safe navigation, we will be closing the Northampton Arm to passage from 3pm on Monday 27th July. Lock 1 and 12 will be locked.
The situation is being continually monitored and reviewed; however, we encourage all boaters currently on the Arm to consider moving to the main line while navigation remains possible. We will update this notice as the situation develops.
