North Leixlip Sewage Works

Client: Terra Solutions
Services: Temporary works design, supply of ground support system

The Lower Liffey Valley Sewerage Scheme Wastewater Treatment Plant Upgrade aims to upgrade the existing Leixlip WWTP from 80,000 population equivalent to its ultimate capacity of 150,000.

The WwTP expansion is required to accommodate predicted future increases in wastewater flows up to a population equivalent of 150,000 PE from an expanding domestic, industrial and commercial population. The proposed WwTP expansion will provide secondary and tertiary treatment with nutrient removal. The WwTP will discharge final effluent to the River Liffey at Leixlip.

Working for Terra Solutions, Trench Control provided a series of temporary works designs and supply of ground support equipment for multiple excavations required as part of the works. The works included launch and reception pits for tunnelling works beneath the Royal Canal and a series of smaller pits for the construction of ancillary chambers.