Independent. Built from Canal & River Trust's own published notices, with no affiliation to or endorsement by the Trust.
All closures / What fails / Lock / Bywash
Bywash
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: 0 against 0. How this is tested.
- On record
- 3 closures since May 2025
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 |
|---|---|
| Kennet & Avon Canal | 1 |
| Oxford Canal | 1 |
| Staffordshire & Worcestershire Cnl | 1 |
Every closure on record
Showing 3 closures involving a lock bywash.
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
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 38, Penkridge Lock
Staffordshire & Worcestershire CnlWest Midlands
107 days
From 31 December 2025
Reopened 17 April 2026
- Where
- Lock 38 Penkridge Lock to Lock 37 Filance Lock
- CRT reason
- Repair
- Cause
- Broke, cause not given
- Asset
- Lock
We are pleased to report that good progress has been made at Penkridge Lock. The bywash culvert liner has now been installed and is awaiting grouting. Grouting of the liner is planned to take place on Monday and Tuesday, subject to the timely delivery of materials. Following…
Latest of 14 CRT updates, 10 April 2026.
Nell Bridge Lock No 32 Cherwell
Oxford CanalLondon and South East
2 days
From 23 March 2026
Reopened 25 March 2026
- Where
- Lock 32, Nell Bridge Lock
- CRT reason
- Repair
- Cause
- Cause not stated
- Asset
- Lock
Please be advised that this lock is currently closed due to a blocked by-weir-channel.. Our team are working hard to clear this as quickly as possible. We'll share an update as soon as we have more information. Thank you for your patience and understanding whilst we work to get…
CRT's only update, 23 March 2026.
Seend Locck 18 , between Bridge 153 Seend Wharf Bridge and Bridge 154.
Kennet & Avon CanalWales and South West
same day
From 19 January 2026
Reopened 19 January 2026
- Where
- Bridge 153, Seend Wharf to Bridge 154 Seend Lock 18 Bridge
- CRT reason
- 3rd Party Works
- Cause
- Broke, cause not given
- Asset
- Lock
Please be advised that contractors will be carrying out works to clear a blocked by-weir at Lock 18 Seend on Monday 19th January. The work will involve high-power jetting of the blocked by-weir on the offside of the canal. Please note that a hose will be positioned across the…
CRT's only update, 13 January 2026.
Showing the 3 longest of 3. Every row links to the notice CRT published.
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