Siphon pipes for being floated into Cork
Harbour The Cork Main Drainage Scheme represents one of
the largest engineering and environmental projects ever under-taken
by a Local Authority in Ireland representing an in-vestment of in
excess of €300m in waste-water collection and treatment
infrastruc-ture for Cork City.
The main elements of the scheme included a 2.6km tunnelled
interceptor sewer, a pumping station del-ivering 2.45 m³/sec, a
3.5km inverted twin siphon across Lough Mahon Estuary and a
wastewater treatment plant serving a population equivalent of
460,000 and treated effluent outfall to Cork Harbour.
Mott MacDonald Pettit were appointed as Consulting Engineers for
the whole of the project which was procured under twenty five
separate contracts ranging in value from €0.7M to €90. The scope of
work included preparation of the Preliminary Report and the
Environmental Impact Assessment, steering the scheme through
planning and on to detailed design, tender assessment and contract
supervision for the foul sewer and storm sewer networks, pumping
stations, mechanical and electrical installations and wastewater
treatment facilities.
