Wicklow County Council and the OPW appointed ByrneLooby as the lead engineering consultant in a role that included hydrological studies, river and coastal modelling, preliminary design, scheme optioneering and development, and cost-benefit analyses. ByrneLooby also developed the planning stage design including the engineering drawings, prepared the Construction Environmental Management Plan and contributed to The Environmental Impact Assessment Report (EIAR).
Throughout the preliminary and planning stages, we managed site investigations and surveys, a requirement at each project phase. The Avoca River and its many tributaries drain a relatively steep catchment of 652km^2 extending from just north of the Sally Gap and flowing southwards, discharging to the Irish Sea at Arklow Town. This study addressed the flood risk of Arklow Town and required a preliminary design of appropriate flood mitigation measures. A suitable flood relief scheme for Arklow Town, based on technical, socio-economic and environmental criteria was identified.