Wexford Town Main Drainage Scheme

T J O’Connor & Associates were engaged by Wexford Borough Council to upgrade the pipe network throughout the town and eliminate the discharge of untreated sewage. A number of separate contracts were undertaken to implement the scheme. These involved the construction of pipelines and ancillary works, pumping stations and an 1800mm to 2100mm diameter interceptor sewer constructed within an 800m long extension to the existing quays with ancillary works under a traditional form of contract.

On these works, T J O Connor & Associates were sole consultants for all stages from detailed design, through traditional procurement and administration of construction contracts.

Start/End Date:

1995 – 2009

Contract Value:

€50M

Role:

Full Engineering Services on traditional pipe network contracts

Key Features:

• 25km of sewers ranging in size from 225mm to 1800mm diameter in the town centre and environs
• 10km of watermains from 100mm to 150mm diameter
• 15 km of ducting from 50mm to 150mm diameter for underground services
• 3 new pumping stations
• Stormwater pumping facilities to alleviate flooding of low-lying quay area – pumping capacity 8m³/sec (4No. storm pumps each with 2,000l/s capacity)
• Quay extension (2hA) and interceptor Sewer (2.1m diameter – included replacement berthing (500m) for the commercial fishing fleet, breakwater arm for marina development and extensive quay-front amenity facilities
• Pipeline crossings of the main Dublin-Rosslare railway line along the Quays
• Varying ground conditions from rock at higher ground to deep alluvial deposits on the low-lying areas, subject to tidal ingress from the harbour

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