Independent. Built from Canal & River Trust's own published notices, with no affiliation to or endorsement by the Trust.
All closures / What fails / Lock / Chamber
Chamber
Too few unplanned closures of this kind in June to August 2026 and the same months a year earlier to tell a change from luck: 2 against 1. How this is tested.
- On record
- 5 closures since May 2025
In force today
No closure of this kind is in force today.
By canal
5 canals have had a closure of this kind. A closure naming two canals counts on both.
| Canal | Closures |
|---|---|
| Grand Union Canal | 1 |
| Huddersfield Narrow Canal | 1 |
| Peak Forest Canal | 1 |
| South Stratford Canal | 1 |
| Trent & Mersey Canal | 1 |
Every closure on record
Showing 5 closures involving a lock chamber.
Rank by
Population
Status
Duration
Cause
Asset affected
Lock part
Unplanned lock failures naming a part
CRT reason
Region
What these figures mean
- Population
- Which closures a figure counts. All closures is everything; Unplanned closure drops the works CRT flags as its winter programme and any day outside the cruising season (the Friday nearest 15 March to the Sunday before the first Monday in November). Scheduled work CRT does not flag as winter works still counts here. CRT Planned closure is the flagged winter programme alone.
- Defensible duration
- The days between a closure's start and its reopening date, counted only where the dates allow it. A cancelled notice, or one whose reopening precedes its start, has no defensible duration and is in no total.
- Closure-days
- One day on which one closure was in force. Two closures on the same day are two closure-days; where the question is how long a canal was actually disrupted, overlapping notices are unioned into single intervals. They are counted from 1 May 2025, when this archive begins: a closure that started earlier adds only its days since then, though its own row shows its whole length. Every figure and chart counts only the days inside the Period chosen above them.
- In force
- A closure is in a Period, and a day is one a closure affected, if it was in force at any time that day, including the morning it reopened. Closure-days measure how long, so they count whole days and not the reopening day: a closure can be in a Period and add no closure-day to it.
Closures in force each month
closures active during the monthCanals ranked by the season's closures
share of the period's cruising-season days up to today — a closure somewhere on a long canal is likelier, and does not mean the canal was impassableclosures in force on the period's cruising-season days — a longer canal has more to go wrong onWhere
closure-days by regionclosures by regionA region with more canal has more to go wrong on, so these totals partly measure its size. Regions compared by length of canal are on the Reliability page.
What causes them
closure-days by causeclosures by causeCRT's reason
closure-days by the reason CRT filedclosures by the reason CRT filedHow long they last
closures by full length, including any days before May 2025 — the bands are not equal in widthClosures
Lock 11 West
Huddersfield Narrow CanalNorth West
21 days
From 19 September 2025
Reopened 10 October 2025
- Where
- Lock 11 West
- CRT reason
- Repair
- Cause
- Broke, cause not given
- Asset
- Lock
Our contractors have completed the grouting works at Lock 11 West ahead of schedule and plan for navigation to resume Friday 10 October from 5pm.
Latest of 2 CRT updates, 8 October 2025.
Lock 68 (Booth Lane)
Trent & Mersey CanalNorth West
2 days
From 6 July 2026
Reopened 8 July 2026
- Where
- Lock 68
- CRT reason
- Boating Incident
- Cause
- Other cause
- Asset
- Lock
Navigation remains closed at Lock 68 on the Trent & Mersey Canal due to a boat that is currently stuck inside the lock chamber. River Rescue is on site and working to safely recover the vessel. Navigation will reopen once the boat has been removed and it is safe to do so. We…
Latest of 2 CRT updates, 7 July 2026.
Lock 40, Wilmcote Top Lock
South Stratford CanalWest Midlands
1 day
From 5 August 2025
Reopened 6 August 2025
- Where
- Lock 40, Wilmcote Top Lock
- CRT reason
- Underwater Obstruction
- Cause
- Cause not stated
- Asset
- Lock
An underwater obstruction has been identified within the lock chamber. Although the emergency response team attended site and attempted to remove it, the size and nature of the obstruction prevented them from making the lock safe. This obstruction is currently causing boats to…
CRT's only update, 5 August 2025.
Between Locks 15 and 17, Stoke Bruerne
Grand Union CanalEast Midlands
same day
From 15 May 2026
Reopened 15 May 2026
- Where
- Lock 15 to Lock 17
- CRT reason
- Repair
- Cause
- Broke, cause not given
- Asset
- Lock
Following a site inspection ahead of these works tomorrow, this closure has been extended from Lock 15 to Lock 17. We need to lower the water levels in the pounds between the locks to safely complete the emergency repairs. The moorings between lock 15 and 16 will be unavailable…
Latest of 2 CRT updates, 14 May 2026.
Lock 15 Marple
Peak Forest CanalNorth West
same day
From 1 July 2026
Reopened 1 July 2026
- Where
- Lock 15
- CRT reason
- Underwater Obstruction
- Cause
- Cause not stated
- Asset
- Lock
Navigation is currently closed at Lock 15 on the Marple Flight on Peak Forest Canal due to an obstruction in the lock chamber. The team are currently on site to remove the obstruction, and the flight will be back open at 5pm. A further update will be provided today on or before…
CRT's only update, 1 July 2026.
Showing the 5 longest of 5. Every row links to the notice CRT published.
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