Client: The Commissioners of Public Works

Location: Co. Tipperary, Ireland

Project Value: €7.42m

Description: Flood alleviation works in the North Quay, Davis Road, Suir Island, Denis Burke Park, Old Bridge, Auk Stream, Hotel Minella, Kilgainy and Poulboy areas of Clonmel, Co. Tipperary

Ward & Burke were responsible for the construction of 880m of stone clad insitu concrete defence walls, in addition to 200m of insitu concrete flood defence walls around Suir Island, with a sheetpile foundation acting as a water cut off.
The project also provided for the full road/street reconstruction in an urban environment to NRA specification, for works comprising the following;

  • Demolition and site clearance, removal of trees and hedgerows
  • Excavation of topsoil, rock and artificial materials
  • Full reconstruction of and placing of 3,400m2 of HDPW liner to Monument Carpark
  • Road bridge replacement, widening, modification and refurbishment works
  • 150mm Clause 804, 150mm wet mix base course, 60mm DBM binder course, 60mm asphalt wearing course
  • 600mm x 420mm In-situ concrete ST4 type kerbs
  • Light duty patterned paving with river bed pebbles, rectangular paviors, mortar bed
  • Lighting columns
  • Precast, trapped concrete gullies
  • Surface water drainage
  • Bespoke precast manholes, manufactured at our precast yard, allowing immediate carriageway reinstatement

With an AADT of 5,674, traffic management for the scheme was planned, designed and implemented by Ward & Burke. Temporary fencing and alternative farm accesses were required during this project.
The contract required liaison with numerous stakeholders along the route of the stormwater pipeline including Clonmel Town Council and South Tipperary County Council divisions, National Parks and Wildlife, Fisheries, local businesses and residents/landowners, ESB, Telecom, etc.

Works were undertaken in an archaeologically sensitive area adjacent to a Special Area of Conservation. This contract was based in an active business community on a river flood plain. Piling works were undertaken in restricted areas in close proximity to existing masonry structures, requiring pre-commencement structural surveys and extensive vibration monitoring during works. Certain areas where works were untaken posed challenges such as;

  • Denis Burke Park, Channel Widening (Ecological Challenges)
  • Monument & old Quay Pump Stations (Sunk as caissons, adjacent to structurally unsound structures)
  • Strengthening of Old Bridge (800 year old protected structure)
  • Flood defences (Works in SAC, piling, earth bunds, pumping stations, pipework, pumping stations, fish pass)
  • Green Lane Bridge (Demolition of existing bridge -adjacent to existing building which required under pinning)
  • Aux Stream (Works in confined back gardens, with no access)