Introduction
The new Neath Port Talbot Hospital comprises 277 beds and provides a wide range of services including acute medical emergency admissions, elective surgery, a 24 hour local accident centre, outpatients, children’s, rehabilitation and diagnostic services. The hospital also provides the opportunity to transform local access to mental health services by offering an acute admissions unit, assessment facilities for geriatric psychiatry and day hospital provision in a stand-alone Mental Health Unit.
The hospital, a PFI project, was constructed using a steel frame with composite floors and partial brick / composite cladding external envelope. Millard Consulting provided structural and infrastructure design.
The site was formerly a household waste tip and testing indicated the possibility of methane emissions. Although low rates of flow were predicted, reducing with time, the ground floor was fully protected against gas penetration and the 1.2m service void, below ground floor, had passive ventilation with fans to force vent if levels increased above preset limits.
All roads were constructed to allow free flow of gas emissions to ventilation trenches. The foundations were 15 to 20m precast concrete piles, driven to a set in the gravels below the fill, supporting reinforced concrete ground beams and sleeper walls to create the service void in which all drainage runs were located. The ground floor was a beam and block construction, with gas protection below the screed. A large lake was constructed adjacent to the hospital; providing a balancing reservoir and attenuation to the storm flows from the extensive car parking areas.
