Altering a manhole

Sewer manholes are positioned at regular intervals (approximately every 100 metres), or wherever there is a change in grade, direction or materials in the sewerage system. They allow us to:

  • inspect sewers by closed circuit television;
  • clean pipes;
  • clear blockages; and
  • inspect infrastructure. 

It is important that manholes are kept free of any obstructions.

Lowering or raising a manhole

Due to movements in the soil around manholes, we sometimes need to raise or lower a manhole to keep it level with the ground.

If the manhole is on your property, it is your responsibility to maintain the area around it. To have the height of a manhole adjusted, please complete an Water and Sewerage Supply Services Private Works Application (PDF).

Please note: In line with the Water Supply (Safety and Reliability) Act 2008, it is an offence to interfere with a public sewer or manhole, and penalties may apply.

    Did You Know
  • Approximately one pool in every 20 has a leak! Even a minor leak can result in a major water loss.  Under pressure a tiny leak can lose more than 3000 litres a day.