Back to projects overview

South North Gas Pipeline

  • Project Type Gas Pipeline
  • Client Bord Gáis Networks
  • Company Involvement The South North Pipeline project was awarded to the Sicim/Roadbridge JV in November 2005 by Bord Gáis Networks
  • Form of Contract Fixed Price Lump Sum
  • Dates November 2005 – August 2007
  • Location Ireland


This contract comprised the preparing of 81.5km of spread for a 450mm Gas pipe. Pipeline is constructed with a working pressure of 85 bar. Excavate/backfill and reinstate 81.5km of pipeline and other ancillary works. Technical difficulties associated with the project included the crossing of the river Boyne. Due to the environmental (Boyne Islands SAC, Boyne and Blackwater SAC) and cultural heritage designations (Battle of the Boyne and the buffer zone of the UNESCO World Heritage Site at New grange) within the river corridor, a trenchless crossing of over 450m was employed using Horizontal Drilling Techniques to ensure that any impact on the River Boyne was avoided.


Key Features

  • 1 Railway Crossing
  • 2 Motorways
  • 3 ”A” roads & 65 ”B” roads
  • 8 major river crossings
  • Number of AGI’S: 4 no. in total