This section details the maintenance requirements for underground drains and channels.

The manual outlines our requirements for best practice waterway design to help professionals working in the land development industry who design, construct and establish waterways in new urban developments.

The manual outlines our requirements for best practice constructed wetland design, to support consistent delivery of high-quality constructed wetlands across the Port Phillip and Westernport region.

This describes the structural design requirements for drainage systems. It includes details on pipe drains and associated concrete structures.

Additional factors which should be considered during the preparation of the design include:

'As constructed' information for underground pipelines can be difficult to obtain due to the nature of Works involved

Loss coefficient for pits and junctions