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Mitchelstown Inner Relief Road

  • Project Type Roads / Bridges
  • Client Cork County Council
  • Company Involvement Roadbridge performed the role of Main Contractor and PSCS.
  • Form of Contract IEI 3rd Edition
  • Dates April 2005 - July 2006
  • Location Co. Cork, Ireland

Key Features

  • The construction of 4.1km of single carriageway which included 9m rock cut through karst limestone; geophysics undertaken to inform grouting of karst features and geogrid reinforced pavement solution
  • 4 no. at-grade roundabouts
  • 1 no. Bridge over the Gradoge River - reinforced earth construction with precise TY beam composite deck slab measuring 20m wide and 17m clear span over the river
  • Design and construct a 25.4m long 4.5x3.6m precast concrete box culvert for livestock/pedestrian access tunnel and a 22.5m long 4.5x4.5m domestic access tunnel underneath the contract roadway
  • Laying the road pavement totalling surface area of 70,000m²
  • Installation and diversion of all electrical communication and water utilities
  • Installation of road signage, markings and pedestrian traffic signal
  • Accommodation works for landowners
  • Preservation of an archaeological landmark and provision of tourist amenities for same