BRITAIN BENEATH · FIELD NOTE · 13 SEPTEMBER 2026
Two portals, one tunnel—and more than one record
Why counting heritage entries is different from counting places.
Short introductory note. Further research is needed before this becomes a full visitor guide.
The map is a catalogue, not a turnstile
Woodley Tunnel appears in the collection through separately named north and south portals. Hydebank also has separately recorded ends. This is a useful reminder that an official record is an evidence unit. It may describe a component rather than a whole engineering work or a single visitor destination.
If you count both portals as two tunnels, the inventory becomes misleading. If you merge them without retaining the original references, you lose the ability to explain the separate records. A trustworthy atlas needs both views: the source entities as published and, when researched, a relationship that connects them.
What an entrance record does and does not establish
A title naming a portal locates an architectural feature. It does not establish that the underground passage survives throughout, is navigable, or can be entered. The apparently obvious inference from “entrance” to “access” is exactly the one to avoid.
Compare the official entries for named ends. Look for construction phases, alterations and descriptions of the structure being protected. If the records differ, retain the difference and investigate it. Do not silently choose the more convenient account.
Follow the engineering question
The interesting desk-based question is why a tunnel was needed at that point in the network. A full historical account or a properly licensed period map may help explain the obstacle, alignment and relationship to adjoining works. The point data alone cannot settle those questions.
Use this pair of records as a model for reading the whole atlas. Multiple pins can be one connected work; one pin can describe multiple remains. All underground locations should be treated as historical reference points, with any visit confined to a separately confirmed official arrangement.
Evidence and further reading
Interpretation of the linked official index records. This is not a site-visit report. Current access is checked separately where an operator source is available; see each record. The 6 records below are a selected reading list, not a complete inventory.
- Woodley Tunnel, North Portal At Sj 9360 9221 On Peak Forest Canal — 1117081
- Woodley Tunnel, South Portal At Sj 9350 9205 On Peak Forest Canal — 1117083
- Number 15 (West Entrance To Hydebank Tunnel) On Peak Forest Canal — 1117376
- Number 15 (East Entrance To Hydebank Tunnel) On Peak Forest Canal — 1117377
- Huddersfield Narrow Canal Scout Tunnel, south entrance — 1162961
- Huddersfield Narrow Canal Scout Tunnel North Entrance — 1309457
Historical and interpretive claims refer to the linked records. Source licences and attribution.