2012-12-21   Ringsend Waste Water Treatment Works Extension Project - Long Sea Outfall Tunnel (Dublin City Council)
The design and construction/execution of a โ€˜treated effluent' marine outfall system from the Ringsend Waste Water Treatment Works (WwTW) to the Irish Sea in Dublin Bay including: - A c. 9 km Long Sea Outfall Tunnel (LSOT), c. 5m internal diameter, constructed in bedrock; - An inlet shaft located onshore with an internal diameter of c. 20 m and up to 110 m deep. - A c. 4 m diameter offshore marine riser shaft terminating in a โ€˜treated effluent' diffuser head structure located in marine water depths of 25 โ€ฆ View the procurement ยป