Marsworth Flight Closure

Completed: Work has been completed and flight has re-opened

Type: Navigation Closure

Waterway(s): Grand Union Canal

From: 30 October 2025, 2:11pm

To: 3 November 2025, 1:26pm inclusive

Region: London and South East

Reason: Repair

Subject to review on: 3 November 2025

Location

Closest waterway	Grand Union Canal
Starts at	Lock 39
Ends at	Lock 45
Upstream winding hole	Marsworth
Downstream winding hole	Cowroast

Descriptions

Update 31 October 2025, 10:26am

Following a further assessment the flight will remain closed over the weekend. Work is planned for Monday 3rd November; Please check this notice for updates.

Original 30 October 2025, 2:18pm

Due to a broken Mitre post at Lock 40 the flight is temporarily closed whilst our engineer makes as assessment today, with a view to conducting a repair tomorrow.