Infrastructure design

Infrastructure design includes pipe design, outfalls, and other civil infrastructure associated with stormwater management and conveyance.

Codes of Practice and Infrastructure Design Standards

Codes of practice (COP) or infrastructure design standards set out the design requirements for projects within a territorial authorities area. COPs provide the guidance for understanding the local application of regional, national or international principles.

Waterways, Wetlands and Drainage Guide (WWDG)

Hydraulic design is covered in chapter 22 of the WWDG. This covers the design of a wide range of structures, from riffle, run and pool design to sump design.

New Zealand Standards

The most relevant New Zealand standard for stormwater infrastructure design is NZS 4404:2010 – Land development and subdivision infrastructure.