Independent. Built from Canal & River Trust's own published notices, with no affiliation to or endorsement by the Trust.
The archive / Grand Union Canal
Lock 77 Dewatering, Grand Union Canal, Watford
A navigation closure on the Grand Union Canal, 21 October 2025 to 22 October 2025 — 1 days.
Source: this notice on canalrivertrust.org.uk
- Waterway
- Grand Union Canal
- Region
- London and South East
- Started
- 21 October 2025
- Status
- Reopened 22 October 2025
- Days shut
- 1
- CRT reason
- Underwater Obstruction
- Cause
- Other cause
- Asset
- Lock
Cause and asset are read from the notice prose, not CRT fields; the reason above is CRT's own.
Where
- Grand Union Canal: Lock 77, Ironbridge Lock to Lock 77, Ironbridge Lock
Updates · 1
6 days with no update after the last one.
16 October 2025 · 0 days since the previous
Top stop plank installation is required to dewater the lock head to identify and if possible, remove obstructions blocking ground paddle culverts at lock 77 Iron Bridge. We will also take the opportunity to refurbish all paddle connections and fixings below water level. No assisted passages will be available.
Cite this: Canal closures, “Lock 77 Dewatering, Grand Union Canal, Watford”, https://crt-stoppages.pages.dev/notice/0199ec00-e30e-7f94-8e7e-4d2522ecb5f0.
Every closure on Grand Union Canal · Download the data · Method and limits