Independent. Built from Canal & River Trust's own published notices, with no affiliation to or endorsement by the Trust.
All closures / What fails / Weir
Weir
No unplanned closure of this kind can yet be set beside a year earlier. How this is tested.
- On record
- 3 notices since May 2025: 2 closures and 1 not yet started
In force today
No closure of this kind is in force today.
By canal
3 canals have had a closure of this kind. A closure naming two canals counts on both.
| Canal | Closures |
|---|---|
| Macclesfield Canal | 1 |
| Monmouthshire & Brecon Canal | 1 |
| River Stort | 1 |
Every closure on record
Showing 2 closures involving a weir.
Rank by
Population
1 closure is in neither group: 1 unplanned with no day in the cruising season since May 2025.
Status
Duration
Cause
Asset affected
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 filedWhat fails on a lock
closure-days by part — unplanned lock failures naming a partclosures by part — unplanned lock failures naming a partHow long they last
closures by full length, including any days before May 2025 — the bands are not equal in widthClosures
Lock 7, Bosley weir
Macclesfield CanalNorth West
11 days
From 6 October 2025
Reopened 17 October 2025
- Where
- Bosley Lock 1 to Bosley Lock 12
- CRT reason
- Repair
- Cause
- Planned works
- Asset
- Weir
With a shorter window for the lock gate works at Bosley Lock 7 to allow a window for boat passage – we will undertake improvements to the weir at Lock 7 from 6 October to 17 October while there are other closures in place. We were awaiting listed building consent but now have…
CRT's only update, 3 October 2025.
Fixed Weir 9 66m W of Bridge 21
River StortLondon and South East
1 day
From 16 January 2026
Reopened 17 January 2026
- Where
- Lock 9, Latton Lock to Bridge 21, Harlow Footbridge
- CRT reason
- Boating Incident
- Cause
- Other cause
- Asset
- Weir
The craft has been successfully removed from the weir - Unfortunately due to a blocked paddle at Latton Lock, the navigation will remain closed until Saturday when the duty team can attend to clear the obstruction - An update will be published once the navigation is open
Latest of 2 CRT updates, 16 January 2026.
Showing the 2 longest of 2. Every row links to the notice CRT published.
Coming up
Scheduled but not yet started, so in no figure above.
| Closure | From | Planned |
|---|---|---|
| Weir 2A, Llanfrynach weir | 2 November 2026 | 46 days |
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