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Stormwater specification

Published: | Category: Drainage , Maintenance , Specifications | Audiences: General, Road controlling authorities, Road traffic engineers & consultants, Roading contractors

This P46 specification sets out the requirements for the design, construction and operation of all stormwater improvement projects. It is anticipated that the standard stormwater specification is a starting set of specifications and may be adapted to address local issues and the scope of the project.    

Publication details

  • Author:
  • Published: February 2025
  • Contact: environment@nzta.govt.nz
  • Also known as: NZTA P46