Clydach Vale

The Clydach Vale collieries would later become synonymous with worker activism within the South Wales coalfield. Opened in 1872, the Clydach Vale colliery No. 1 was originally sunk by Osbourne Riches and Samuel Thomas and, by 1894, was served by the Taff Vale Railway. Following the death of Thomas in 1879, his sons became managing partners and, in 1895, formed Cambrian Colleries Ltd. The Cambrian Collieries were a focus for disputation between active trade unions such as the South Wales Miners' Federation and the Cambrian Combine, a business network of mining companies, formed to regulate prices and wages in south Wales. A bitter clash between them resulted in the 1910 Tonypandy Riot.

On 10 March 1905, an explosion occurred at the Cambrian Colliery No.1. The explosion was heard for miles around the valleys and resulted in the loss of 33 lives and serious injury to 14 others. The accident happened between the day and night shifts, otherwise the death toll would have been far higher.[2][3]

On 25 November 1941, seven men were killed and 53 were injured when a trolley transporting miners down a sharply sloping shaft ran out of control.[4] The incident happened at the 'Gorky' drift mine, with ninety men and boys taking the spake, an open-sided trolley fitted with cross planks for seating and a central overhead handrail as a holding point, down to the workings 525 yards below. The surface engineman suffered a temporary blackout and the manual brake was disengaged, causing the spake to quickly build up speed. Most of the injuries and fatalities were to miners who leapt from the spake and were thrown back under the trolley due to the narrowness of the drift shaft.[4]

On 17 May 1965, a third major accident occurred at the Cambrian Colliery. An explosion caused by firedamp, after poor ventilation allowed a build-up of flammable gas, killed 31 miners. The ignition point was later identified as an electric arc on an open switch-panel which was being worked on. This was the last major mining disaster in South Wales history.[2]

Commemorative plaque and photo montage at Clydach Vale School

At about 4.00 p.m. on Friday 11 March 1910, the lives of one adult and five children were lost when pent-up water from an abandoned coal mine burst through into the village.

The mountainside seemed to give way, 'as though from a volcanic eruption' and a torrent of water together with huge amounts of earth, boulders and other debris swept down the hillside. Directly in the path of this torrent lay Adams Terrace and, according to contemporary newspaper reports, the first house it encountered 'was in a moment completely wrecked like a pack of cards' and its occupants Mrs. Elizabeth Ann Williams and her ten-week-old baby girl perished.[2]

A three-week-old baby boy also died. The newspaper went on to state that, 'Altogether eleven houses and a shoemaker's shop were wrecked, one being completely washed away'.

Rushing down to the valley floor, the torrent inundated the Clydach Vale School and trapped hundreds of children. The time coincided with the homecoming of many miners at the ending of a shift and an immediate rescue effort by them and the school's staff saved all but three of over 950 children.[2][5] In particular, headmaster Robert Ralph Williams displayed extraordinary bravery in battling the flood and saving many children, for which he was later awarded the Albert Medal.[6][7]

A brass wall plaque was placed in the school in recognition of the discipline and heroism of the staff in organising the rescue. In preparation for the 2010 centenary of the disaster, another plaque, with names of the dead, was installed at the school together with a montage of photographs showing the aftermath of the flood.