OCSC were appointed by Fingal County Council as consultant civil, structural, mechanical and electrical engineers for the design of Church Road Pump Station in Hollystown North Dublin. The role included the statutory obligation of Project Supervisor for the Design Process. Fingal County Council commissioned the stations to allow development in the Tyrrelstown area. The pump station is an intermediate forward pumping station supplied by both gravity rising main incoming feeds.
The pump station is designed to forward pump at 150 l/s with additional storage for storm conditions of 840m3. Three number Flygt 35KVA pumps are operated in the dry well in duty/stand by and assist mode. The system is designed with mono mulchers to the overflow storage and fine screening to the emergency overflow network. The pump station includes variable speed drives to achieve optimal power consumption and reduced maintenance requirements for the plant.
Design considerations included surge analysis and HAZOP report compilation. The scheme included the design of 3 kilometres of rising main to pump the sewage to the main gravity 9C Trunk Sewer. The station will be controllable locally via HMI hardware with remote monitoring of the SCADA system from the local authority’s headquarters. The design includes full motor control centre, generator and ESB substation rooms all to be contained in the above ground control building. OCSC provided full design services and contract and commissioning supervision for the construction of the pump station.