Independent. Built from Canal & River Trust's own published notices, with no affiliation to or endorsement by the Trust.
The archive / Hertford Union Canal
Hertford Union Canal
Something was shut here on 29% of this cruising season — 66 of its 231 days — across 6 separate closures.
That means a closure somewhere on the canal, not that the whole canal was impassable. Every closure below names the locks or bridges it sat between.
1 closure is still shut now, and 1 of those has no reopening date. Filter to it.
- Regions
- London and South East
- On record
- 8 closures
The season, closure by closure
Each row is one closure. A bar starts and ends where the closure did, and its length is how long it ran; dashed bars have not started yet.
Every closure on record
Showing all 8 closures on the Hertford Union Canal.
What these figures mean
- Population
- Which closures a figure counts. All closures is everything; Unplanned, in season drops CRT's scheduled winter programme and any day outside the 15 March to 31 October cruising season; CRT winter programme is that maintenance 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.
| Notice | Extent | Started | Days |
|---|---|---|---|
| Navigation Closure - Hertford Union Canal, Top Lock, Lock 1 - Bottom Lock, Lock 3, Bow/Hackney Wick | Lock 1, Top Lock to Lock 3, Bottom Lock | 2026-07-30 | 54 |
| Hertford Union Locks 1 to 3 closed due to boat strike | Lock 1, Top Lock to Lock 3, Bottom Lock | 2025-12-08 | 38 |
| Navigation Closure - Hertford Union Canal, Between Top Lock 1 and Bottom Lock 3, Bow | Lock 1, Top Lock to Lock 3, Bottom Lock | 2026-07-28 | 6 |
| Navigation Closure - Hertford Union Canal, Top Lock, Lock 1 - Bottom Lock, Lock 3, Bow / Hackney Wick | Lock 1, Top Lock to Lock 3, Bottom Lock | 2026-07-20 | 5 |
| Accommodation bridge 10 | Accommodation Bridge 10 | 2025-05-27 | 3 |
| Hertford Union - Middle Lock | Lock 1, Top Lock to Lock 2, Middle Lock | 2026-02-06 | 3 |
| Hertford Union Canal | Stop Gates 1 to Accommodation Bridge 10 | 2026-04-24 | 1 |
| Navigation Closure - Hertford Union Canal, Lock 1, Bow, London | Lock 1, Top Lock | 2026-03-25 | same day |
Showing the 8 longest of 8. Every row links to the notice CRT published.
Not counted
Cancelled notices and ones whose dates cannot be right are in no figure on this page. They are kept here because CRT published them.
| Notice | State | Started |
|---|---|---|
| Navigation Closure - Hertford Union Canal, Top Lock, Lock 1 - Bottom Lock, Lock 3, Bow/Hackney Wick | Completed | 30 July 2026 |