New Water Reservoir & Pump Station, Dublin Airport (D&B)
The scope of work comprised the design and construction of a 3,500sq.m reinforced concrete twin cell reservoir structure (14,500m3 capacity), 7m deep including an adjoining pumping station which was 0.5m deeper with GFA of 530sq.m. The site had a water table that was 1m below existing ground level so it was necessary to install 350 CFA piles to act as anchors to resist uplift. The overall excavation volume was 20,000m3 which consisted mainly of black boulder clay and rock. 3,300m3 of concrete and 460 tons of reinforcement were required in structure. The reservoir roof was post tensioned roof system.
An above ground building (530sq.m) was constructed over the pumping station to house all the M&E equipment including providing general and welfare facilities during the operation of the plant. The M&E element of the project was substantial and comprised duty and standby potable and fire pumps, chlorination and UV treatment, SCADA management system, etc. 2km of DI rising and distribution pipelines 250-450 mm diameter (including 80m of trenchless pipe) was constructed offsite through public roads, fields and car parks including tie-ins to existing water supply pipelines.
LocationDublin
ClientDublin Airport Authority
EngineerRPS Consulting Engineers
StatusCompleted 2008
Value€5.5m
