Scope of work completed:

• 5no. permanent shafts of 5.5m internal diameter and depths of up to 16m installed in sandy clay ground conditions and high-water table.
• Installation of 850m of 1200mm HDPE lined sanitary sewer by Microtunnel with drive lengths ranging from 60m to 280m.
• 2 curved microtunnel drives were required with radii of 400m and 500m to install the sanitary sewer within the future roadways to be constructed.