Marsworth Flight closed to Navigation. Lock 45 is closed and no navigation is possible above lock 43

Completed: obstruction cleared and lock re-opened

Type: Navigation Closure

Waterway(s): Grand Union Canal

From: 7 May 2025, 5:15pm

To: 8 May 2025, 10:57am inclusive

Region: London and South East

Reason: Repair

Location

Closest waterway	Grand Union Canal
Starts at	Lock 43
Ends at	Lock 45

Descriptions

Update 8 May 2025, 9:56am

The obstruction at lock 44 has now been cleared.

Original 7 May 2025, 4:25pm

The Marsworth Flight is currently closed to navigation between Locks 43 and 45. This is due to a heavily fouled lock gate issue at Lock 44.

Please refrain from entering the flight until this notice is lifted and the gate is operable. An update will be provided as soon as the situation has been resolved.