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.