Adelaide Mine

Overview

A Cheshire rock-salt mine at Marston, near Northwich, worked from 1850 by the salt firm Joseph Verdin and Sons and known locally for the underground banquets and dances held in its 'Crystal Ballroom' chamber. It was the last working rock-salt mine in Northwich when a sudden inrush of water forced its evacuation on 13 March 1928, flooding the workings for good and leaving a subsidence lake, Adelaide Flash, on the surface above.

History

The Adelaide Mine was sunk at Marston in 1850 and named after Adelaide of Saxe-Meiningen, queen consort to William IV. It was owned and worked by Joseph Verdin and Sons, by the late nineteenth century the largest salt manufacturer in Britain, which also worked salt plants at Witton, Moulton, Over, Wharton and Middlewich. Rock salt was won from broad chambers cut into the Northwich Halite bed, the roof carried on massive pillars of unworked salt left in a regular grid pattern. As well as a working mine it became a notable Victorian and Edwardian tourist attraction: parties were lowered down the shaft in a cage to dine and dance by candle and gaslight among the pink salt caverns, a chamber known as the 'Crystal Ballroom'. Visitors were said to have included Grand Duke Michael of Russia and, in 1844, Emperor Nicholas I. By the early twentieth century it was one of the largest rock-salt workings still active in the area, and by 1928 it was the last rock-salt mine still being worked at Northwich. Flooding on 13 March 1928 brought mining at the site to a permanent end (see Disasters, below); production of rock salt continued instead at Salt Union's mine at Winsford.

Workings

Room-and-pillar workings in the Northwich Halite, with pillars of rock salt reported at around ten yards square, spaced twenty to twenty-five yards apart, supporting an excavated area given as roughly fifteen acres by 1896. A separate account gives the mine's total extent as nine and a half acres at a depth of around 330 feet; the two figures are not reconciled in the sources and are recorded here as separate claims. Rock salt was moved underground by pony and tub to the shaft bottom, then raised, crushed and graded by surface machinery before being sent on by rail and the River Weaver/Weaver Navigation.

Closure

Closed permanently by the flooding of 13 March 1928, which is generally described as the end of rock-salt mining at Northwich itself, as distinct from the brine-pumping industry that continued in the district.

What remains

The collapsed and flooded workings, together with subsidence of the ground above, formed a body of open water on the surface at Marston known as Adelaide Flash, which survives today alongside Ollershaw Lane as a landscape and wildlife feature within the Northwich Community Woodlands.

No mine buildings survive above ground; the site is now open water and surrounding woodland/parkland rather than a recognisable industrial site.

Abandoned workings can be dangerous — unstable ground, uncapped shafts, flooding and bad air are common even where a site looks safe from the surface. This entry describes history and general location only; it is not an access guide.

Disasters & major incidents

• Flooding of the Adelaide Mine
  13 March 1928 · Flooding / Inundation · 0 fatalities
  A sudden inrush of water flooded the Adelaide rock-salt mine at Marston overnight on 13 March 1928, ending rock-salt mining at Northwich for good and creating the subsidence lake now known as Adelaide Flash.

Recorded claims

Individual factual claims, each attached to the source(s) that support it below. Where sources disagree, both are kept.

• The mine was opened in 1850 by Joseph Verdin and Sons, named after Queen Adelaide of Saxe-Meiningen. ¹
• The mine hosted candlelit banquets and dances in an underground chamber known as the 'Crystal Ballroom', with visitors including Grand Duke Michael of Russia and Emperor Nicholas I of Russia in 1844; up to 1,000 members of the public visited in a day at times. ¹
• Given as roughly nine and a half acres of workings at a depth of around 330 feet. (disputed) ¹
• Given as around fifteen acres by 1896, with rock-salt pillars around ten yards square spaced twenty to twenty-five yards apart, worked under manager Thomas Ward. (disputed) ²
• The Mining Remediation Authority holds mine plan records for 'ADELAIDE' in Cheshire (including a combined Salt Union Adelaide/Albert plan), confirming the mine's inclusion in the statutory abandoned-mine plans archive. ³
• Joseph Verdin and Sons was, by the 1880s, the largest salt manufacturer in Britain, operating six Cheshire salt works and employing over 1,000 people. ⁴

Images

Sources

1. (secondary) A crystal ballroom beneath Northwich's feet — Lion Salt Works (West Cheshire Museums)
2. (secondary) How disaster struck Northwich's last salt mine — cc-publishing.co.uk (Cheshire local history archive)
3. (primary) Mine plan: ADELAIDE, Cheshire (feature 21861412) — Mining Remediation Authority / BGS mine plans catalogue
4. (secondary) Joseph Verdin (1807-1873) — Grace's Guide to British Industrial History

Record created: 26 August 2026 · Last researched: 26 August 2026