Luas Cross Path

At a glance

Completion Date:

June 2017

Construction Cost:


No. of Units:

Cross city light rail line


Luas Cross City we were design partners of Sisk




SISK Steconfer Joint Venture

Service provided:

Civil / Railway Engineering / Mechanical / Electrical /


Brian Madden

The Luas Cross City project involved the design of 5.6km of new railway track with 13 stops, a tram depot and two sub-stations as well as a two-span integral bridge at Broadstone and the rehabilitation of three masonry arch structures.

  • The Overhead Contact system was erected through the historic centre of Dublin using poles or building fixings. 34 traffic signal-controlled traffic junctions had to be redesigned and integrated into the SCATS system. The detail design team was led by O’Connor Sutton Cronin, who was part of the Sisk/Steconfer JV contractors. The new line has been successfully constructed in the city centre and links the original green and red lines as well as the communities of Phibsborough and Cabra with the City Centre.
  • OCSC established a special team in-house to deliver our portion of the project and was responsible for the structural and building services design of the Main Depot, sanding shed, wash plant and sub-stations. One of the most difficult aspects of the project was the avoidance of existing buried services.
  • OCSC created a special team to deal with the insertion of the required Luas ducting and track slab around these utilities. They also modelled the traffic aspects of the project and developed this into the completion of required documents for Dublin City Council. Our involvement also included assessing the condition of O’Connell Bridge and designing the new track slab and road to respect this important piece of our heritage.
  • Trams successfully ran on the new service for the first time on 17th June 2017 and opened to the General Public on time and on budget on 9th December 2018. For its work on the Luas Cross City project, OCSC was awarded the ‘Engineering Consultancy Transport’ award from The Public Sector Magazine, Excellence in Business Awards 2017 and the Excellence in Civil Engineering Award at the Irish Construction Excellence Awards held on 23rd March.

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Brian Madden

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