Project Description

Wexford Collection Systems Extension Scheme | Contract No. 1

Taghmon & Crosstown / Ferrybank

This project involved the construction of pumping stations and interconnecting pipelines to transmit wastewater flows from the areas of Crosstown/Ferrybank and the village of Taghmon to the public sewer network in Wexford Town and on to the Regional Wastewater Treatment Plant at Wexford & Crosstown & Piercetown.

This project also involved connections to an existing housing development at Ballyhine; the construction of a coferdam to facilitate building of Crosstown pumping station in a designated Special Area of Conservation (SAC); and the implementation of major temporary traffic management arrangements on major arterial routes around Wexford town.

Scope of the works

Construction of 4 Foul Sewage Pumping Stations and temporary works at Crosstown,Taghmon, Keelogues & Piercetown, including control buildings, access roads, car parking, vehicle turning areas, site drainage, mechanical and electrical works, instrumentation, storm overflow facilities and connection to scada network.

Construction of interconnecting pipelines

  • 225mm diameter (Gravity Sewer) Concrete Pipe – 1,863m
  • 300mm diameter (Gravity Sewer) Concrete Pipe – 1,079m
  • 250mm diameter (Sewer Rising Main) HDPE SDR11 – 11,119m
  • 200mm diameter (Sewer Rising Main) HDPE SDR11 – 21m
  • 150mm diameter (Sewer Rising Main) HDPE SDR11 – 1,256m
  • 225mm Gravity Sewer Concrete Pipe – 500m Tincone Road
  • 12.8km of the mains were installed by Trenchless Techniques – Directional Drilling Method
  • 1km of the Gravity Sewer was also installed via Directional Drilling method
  • Construction of 60 Manholes
  • Construction of air valves, sluice valves and chambers
  • Provision of Temporary and Permanent Reinstatement
  • Provision of Temporary Traffic Management Services including the design, implementation, monitoring and removal of the Temporary Traffic Management in both urban and rural areas of Wexford.

Challenges

The pumping station at Crosstown was constructed in a Special Area of Conservation (SAC). The location of the site for the pumping station, including the required depth of installation necessitated the construction of a cofferdam in part of the harbour estuary during the construction stage.

Provisions for the 24/7 dewatering of the works area within the cofferdam were required including detailed silt management to prevent pollution of the waterways leading to Wexford Harbour.

Project Details

CLIENT

Wexford County Council
Irish Water

ShareRidge and Wexford County Council
ShareRidge and Irish Water
PROPORTION OF CONTRACT UNDERTAKEN

100% – ShareRidge

TENDER ENTITY

Main Contractor

START DATE

October 2012

COMPLETION

May 2014

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Our people are our strength. We are an inclusive and passionate community-focused organisation.

Our team is loyal and dedicated, practical, experienced and educated, reliable and ambitious.

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