Emergency Escapeway

A designated secondary route out of a mine -- a second shaft or outlet, kept clear and marked -- required by law so that men below ground had a way out if the main shaft or haulage road became blocked or unsafe.

Historical usage

The requirement exists because of a specific disaster: on 16 January 1862, 204 men and boys died at New Hartley Colliery's Hester Pit (see Hartley Colliery) when the cast-iron beam of the pit's pumping engine broke and fell down the mine's single shaft, completely blocking the only way in or out and sealing every man below ground with no alternative escape. The inquest jury's own recommendation -- that every working colliery should have at least a second shaft or outlet, to give the men a means of escape should any obstruction take place -- was written into law within months, in an Act of Parliament passed on 7 August 1862 requiring all new mines to have two shafts and every existing mine to sink a second one by the end of 1864. That requirement was carried forward and elaborated through the Coal Mines Regulation Acts of 1872 and 1887 and the Coal Mines Act 1911, and survives in detailed form in the Mines and Quarries Act 1954: Section 22 makes it unlawful to employ anyone below ground in a coal, ironstone, shale or fireclay mine without two shafts or outlets giving alternative means of ingress and egress, separated by at least 45 feet for shafts sunk after 1 January 1865; Section 24 requires every junction along an escape route to be clearly marked with the shaft or outlet it leads to; and no more than nine people may work in a single place served by only one exit.

Why it was used

A mine with only one way in or out has, by definition, no way out at all if that one route fails -- exactly what Hartley proved at the cost of 204 lives.

Risks & limitations

A legally-compliant second shaft or outlet was no guarantee of survival on its own: it had to be genuinely kept clear, correctly marked, and actually reachable from every working place, and mining disasters after 1862 still occurred where an escape route existed on paper but proved impractical, blocked, or too far from the men who needed it in an emergency.

Related terminology

Coal Mines Act 1911

Disasters associated with this term

Included only where MineArchive's own research gives a reasonable evidential basis, with the nature of the relationship stated — not every disaster where this term might plausibly apply.

• Hartley Colliery disaster, 1862 (contextual relationship)
  This disaster's single blocked shaft directly caused the legal requirement for a second means of escape at every mine, enacted within months of the disaster.

Sources

1. (primary) Provisions for securing safe Ingress and Egress — Mines and Quarries Act 1954 — legislation.gov.uk
2. (secondary) Hartley Colliery disaster — Wikipedia

Record created: 29 August 2026 · Last researched: 30 August 2026