County: Dublin Site name: River Liffey, Harbour Quay, Poolbeg Riverine;
Sites and Monuments Record No.: N/A Licence number: 08D067; 08R206
Author: Rex Bangerter, The Archaeological Diving Company Ltd, Brehon House, Castlecomer, Co. Kilkenny.
Site type: no archaeological significance
Period/Dating: —
ITM: E 711418m, N 613505m
Latitude, Longitude (decimal degrees): 53.342167, -6.151306
A non-disturbance underwater assessment of a 40m by 10m area of the River Liffey was required as part of the pre-construction requirements identified for the proposed Dublin Waste Water Treatment Plant at Poolbeg, Dublin Harbour. It is proposed to insert a cooling water system, running northwards from a new waste to energy facility to be located at NGR: 320020 233717. The pipe intake will be located at NGR: 320073 23946 (centre-point) and the outfall pipe will be located at NGR: 320041 233781 (centre-point).
A visual inspection and metal-detection survey of the footprint of the proposed intake/discharge pipeline was undertaken. In addition, a buffer zone was incorporated into the survey, significantly extending the survey area either side of the proposed pipeline; the extended survey area measuring 160m (north–south) by 40m.
The survey was carried out on 15 October 2008. No archaeologically significant material, structures, or deposits were encountered as part of the survey.
