William Dargan civil engineering contractor
This article is part of ICE's Engineer biographies series.
DARGAN, William (1799-1867), civil engineering contractor, was born in Co. Laois, not far from Carlow town, on 28 February 1799, the son of a farmer on the estate of the Earl of Portarlington.
He received his early education in Carlow and commenced his training in a local surveyor's office. His potential was recognised by Major Alexander of Milford and by Sir Henry Parnell MP, supporter of the Holyhead Road and thus a close associate of Thomas Telford (q.v.). Parnell wrote a letter of introduction to Telford, which led, in 1820, to Dargan being appointed as overseer of a portion of the Holyhead road contract. Amongst his responsibilities was the embankment over the Stanley Sands joining Holy Island to Anglesey.
Returning to Ireland, Dargan took on a number of small contracts on his own account, the most important being sections of the road from Dublin to Howth, including the long sea wall protecting the road towards Sutton. He also acted as surveyor to the Dublin to Carlow and Dublin to Dunleer road trusts and carried out some work on the River Barrow navigation.
In 1831, he took on his first large and prestigious project when he became the contractor for the construction of Ireland's first public railway, the Dublin and Kingstown. This contract provided the foundation upon which Dargan built his subsequent contracting enterprises. These included the Kilbeggan branch of the Grand Canal, the Ulster Canal, and contracts for many of the Irish railway companies, notably the routes from Dublin to Cork, Dublin to Drogheda, Dublin to Wicklow and Mullingar to Galway.
By 1853, he had constructed over 600 miles of railway and his name became synonymous with the development of Ireland's transport infrastructure. In the same year, he sponsored the Dublin Exhibition of Industry and was offered a knighthood, which he declined.
In 1866, Dargan was seriously injured in a fall from his horse and died in Dublin on the 7 February 1867 and was buried in Glasnevin cemetery in the city. He was survived by his wife, Jane. An oil painting by Stephen Smith the Elder hangs in the National Gallery of Ireland, Dublin, an institution which he helped financially to establish, and a fine bronze statue to him stands outside the building.
Works prior to 1830:
- 1820-1821. Western end of Holyhead road, including Stanley embankment between Holy Island and Anglesey, surveys and supervision of construction.
- 1821-1830. Road construction and maintenance contracts in Dublin and surrounding districts, for grand juries.
Written by RON COX.
This text is an extract from A Biographical Dictionary of Civil Engineers in Great Britain and Ireland, published by ICE in 2002. Beginning with what little is known of the lives of engineers such as John Trew who practised in the Tudor period, the background, training and achievements of engineers over the following 250 years are described by specialist authors, many of whom have spent a lifetime researching the history of civil engineering.
Featured articles and news
The Constructing Excellence Value Toolkit
Driving value-based decision making in construction.
Meet CIOB event in Northern Ireland
Inspiring the next generation of construction talent.
Reasons for using MVHR systems
6 reasons for a whole-house approach to ventilation.
Supplementary Planning Documents, a reminder
As used by the City of London to introduce a Retrofit first policy.
The what, how, why and when of deposit return schemes
Circular economy steps for plastic bottles and cans in England and Northern Ireland draws.
Join forces and share Building Safety knowledge in 2025
Why and how to contribute to the Building Safety Wiki.
Reporting on Payment Practices and Performance Regs
Approved amendment coming into effect 1 March 2025.
A new CIOB TIS on discharging CDM 2015 duties
Practical steps that can be undertaken in the Management of Contractors to discharge the relevant CDM 2015 duties.
Planning for homes by transport hubs
Next steps for infrastructure following the updated NPPF.
Access, history and Ty unnos.
The world’s first publicly funded civic park.
Exploring permitted development rights for change of use
Discussing lesser known classes M, N, P, PA and L.
CIOB Art of Building 2024 judges choice winner
Once Upon a Pass by Liam Man.
CIOB Art of Building 2024 public choice winner
Fresco School by Roman Robroek.
HE expands finance alliance to boost SME house building
Project follows on from Habiko public-private place making pension partnership for affordable housing delivery.
Licensing construction; looking back to look forward
Voluntary to required contractors (licensing) schemes.