Derryloran Bridge Widening, Cookstown

  • Start Date:
    January 2012
  • Completion Date:
    June 2012
  • Client:
    DRD Road Service
  • Project Value:

Description of works:

  • Grade B listed structure with works carried out under NIEA supervision
  • Tree felling and removal of vegetation
  • Site clearance and bulk excavation
  • Exhumation carried out in adjoining 17th century graveyard under supervision of archaeologists
  • Diversion of watercourse using sandbag dams, pre-cast concrete pipe systems and cofferdams
  • Disposal of contaminated material from graveyard
  • Temporary works propping of existing masonry structure
  • Construction of 6m reinforced concrete retaining wall clad with stone masonry built in lime mortar to match existing
  • Construction of reinforced abutments below water level
  • Supply and installation of pre-cast concrete flexi arch system and precast seating beams
  • Backfilling to retaining walls and flexi arches
  • Masonry cladding to new structures including supply and installation of new voussoir (arch ring) stones
  • Installation of drainage
  • Landscaping of surrounding areas
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