George Overton, Engineer

I’m sure we’ve all heard of Overton Street in Dowlais, but do we know about the person it was named after? George Overton, engineer, is a person who figures prominently in Merthyr’s History, but about whom very little is known.

Information about George Overton’s early life is very scanty, and sources differ as to his date of birth. Some sources state that he was born on 16 January 1775 at Cleobury Mortimer in Herefordshire (others say he was born in 1774), and the next 20 or so years remain a mystery. In his 1825 publication, A Description of the Faults or Dykes of the Mineral Basin of South Wales (right), however, he would describe himself as a practical man who had made and used tramroads “… during the greater part of the last thirty years … having surveyed and constructed roads of some hundred miles’ extent in different parts of the kingdom …”

By the turn of the 19th Century, he had moved to Merthyr, and worked on the Dowlais Tramroad, connecting the Dowlais Ironworks to the Glamorganshire Canal in about 1791-3. This new 4ft 2in gauge tramroad costing £3,000, allowed horse-drawn wagons moving coal and iron – his scheme enabling each horse to pull 9-10 tonnes going downhill.

Soon after this, Overton was working on the Merthyr Tramroad. Commissioned by the owners of the Dowlais, Penydarren and Plymouth Works to counter the control that Richard Crawshay of Cyfarthfa Ironworks held over use of the canal, the 4ft 2in gauge tramroad was nearly 16km long and ran between Merthyr Tydfil and Abercynon. The tramroad secured its place in history when Richard Trevithick’s steam test took place here in 1804, two years after Overton completed his supervision.

From 1803, Overton had an interest in Hirwaun Ironworks in the Cynon Valley, as a partner in Bowzer, Overton & Oliver. He constructed a tramroad from Hirwaun to Abernant (1806-8), followed by work on the Llwydcoed Tramroad for the Aberdare Canal Company, and Brinore Tramroad.

In 1805 Overton married Mary, and they would go on to have six children.

In 1818 he was consulted by mine owners in County Durham, beginning his involvement in the development of what became the Stockton & Darlington Railway. Two canal schemes had failed to materialise and Overton recommended a horse-drawn tramway. His survey detailed an 82km route that he costed at £124,000, and was the first ever survey for a railway. After difficulties with landowners and re-surveys in 1819 and 1820 to shorten the route, his work was taken forward to Parliament but on the passing of the Bill, steam railway pioneer George Stephenson (1781-1848) took over. Stephenson’s team undertook a new survey and the rest, as they say, is history.

Overton had very definite ideas about tramroads and railways and how to construct them. His design for wooden trams (wagons) was adopted across most of South Wales. His expertise in this field seems to have prevented him from fully appreciating the advantages of steam locomotion “… except in particular instances, and in peculiar situations.” His last project was Rumney Railway, a plateway from Rhymney Ironworks to the Monmouthshire Canal Tramroad near Newport. It opened a year after the Stockton & Darlington Railway.

In 1815 Overton and his family moved to Llandetty near Talybont-on Usk where he died on 2 February 1827.

Llandetty Hall – George Overton’s last home.