Innovate Drogheda – Engineering a Bridge from Grendons Foundry to present



October 30th, 2014


The Mill Enterprise Hub, Drogheda


The Mill Enterprise Centre, in partnership with Drogheda Millmount Museum (DMM), is hosting 4 events celebrating Drogheda’s past, present, and future entrepreneurs. The talks focus on four major industries of Drogheda: Brewing, Food, Engineering and Printing.

The third talk will take place on Thursday Oct 30th, 8PM, focusing on the Engineering industry of Drogheda. It is a one hour meeting with a guest speaker from the Millmount Museum, speaking on Grendons Foundry, and Stuart Carolan of Cisco Engineering Ltd on their story of building an Engineering business in Drogheda.

Thomas Grendon & Company opened on the South Quay in Drogheda in 1835 and at its height in the mid nineteenth century, occupied a site from Old Graves Lane to Ship Street, employing over 600 people. Grendon’s built bridges, water tanks, drain covers, farming implements, lighthouse equipment, buoys, ships, steam boats, barges, train engines and some brass works.

The Irish Times in December 1921 stated: “In 1845 when the first locomotive was built by Messrs Grendon and Company, and up to 1885, the Drogheda Foundry was one of the most famed of its kind in the Three Kingdoms, employing between 600 and 700 workers”. The firm specialised in bridge building and one of these, in wrought iron, spans the Boyne at Oldbridge (the Obelisk Bridge 1869), with the Grendon name inscribed on the bridge parapet.

They built Dominic's Bridge in Drogheda, the lattice railway bridge across the Royal Canal, the Obelisk Bridge across the Boyne at Oldbridge and many more bridges at home and abroad. In 1866 they constructed the Diving Bell used to create Dublin port and Alexandra Basin, which continued to be used until 1958.

They were the only commercial makers of broad-gauge steam locomotives in Ireland, and built around 50, supplying the Great Northern Railway, the Midland Great Western Railway, the Dublin to Kingstown Railway and most of the railways in Ireland between the years 1844 and 1885. One of their locomotives is in Brazil.

Their street drainage gratings can still be seen throughout Drogheda including Magdalene Street, Fair Street and Bolton Square.

Cisco Engineering is about to celebrate 40 years of business in Drogheda. During this time Cisco has satisfied the needs of local major industry including Irish Cement, Premiere Periclase, Natures Best, Thorsman Irl, Becton Dickinson, and to the wider area including New Boliden Tara Mines, Siac, John Sisk, PJ Walls Ltd, Ascon & PJ Hegarty.

Cisco's 20,000sq.ft unit on the Donore Road Industrial Estate boasts a well equipped workshop containing a wide range of highly specialised plant and tools.

The range of activities of Cisco extends to the provision of stainless steel and aluminium, structural steel for new buildings, installation of plant for existing ones, alteration work to structures internally in factories, and even to working underground as in this case of New Boliden Tara Mines.

Cisco Engineering has been involved in many projects in the Louth area, including the construction of Boyne Cable Bridge, Laurence Shopping Centre gates, with a further contribution to the construction of the M1 Motorway.


For further details please contact:


Breanndán Casey, Business Development Manager at or on 0876292144

Tel: 353 (0)41 9802444

Twitter: @themilldrogheda





Additional Information:


The Mill, Drogheda’s Enterprise Hub:


-          Providing affordable office space for start-ups

-          Creating a community of like-minded Entrepreneurs & Innovators

-          Acting as a ‘first base’ for IDA supported FDI projects

-          Providing Training ,Mentoring & Networking for Residents of the Mill

-          Working with secondary schools through the exciting ‘Drogheda Young Innovators’ project (

-          Assisting young unemployed people to explore self-employment as a real option to a life on the dole

-          Collaborating with Dundalk Institute of Technology & DCU on some novel & exciting SME focused initiatives

-          Acting as a venue for the ‘CoderDojo’ youth software coding movement ( Drogheda was the 4th Club established after Cork)

-          Reaching out to the Community to encourage & foster greater Social Enterprise