GRAVITY SEWERS

Watersand Trunk Sanitary Sewer

Scope of work completed:

  • 4no. shafts of 5.5m internal diameter and depths of up to 20m installed in sandy clay ground conditions.
  • Installation of 1200m of 1200mm sanitary sewer by Microtunnel with drive lengths ranging from 60m to 600m.
  • 2 shafts constructed as permanent manholes and capped with removable cover slabs to facilitate future tunnelling works.