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#17-06 Coastal effects assessment guideline released

Published: | Category: Technical advice note | Audiences: Road controlling authorities, Road traffic engineers & consultants, Roading contractors

The Transport Agency has developed the Coastal affects assessment guideline in response to the Agency’s focus on long-term climate change impacts, such as sea level rise, increased inundation, and various environmental effects to ensure resilience of the New Zealand highway network.

Publication details

The Transport Agency has developed the Coastal affects assessment guideline in response to the Agency’s focus on long-term climate change impacts, such as sea level rise, increased inundation, and various environmental effects to ensure resilience of the New Zealand highway network.

The guide describes a coastal environment risk assessment approach intended to inform the planning, design and management of state highway assets in coastal environments. It outlines key questions to be considered based around risks to the assets and their effects on changing coastal dynamics, such as sea level rise and increasing tide or storm impacts.

The guide was developed for project teams involved in the project approval and consenting stages, as well as in the design, construction and management of coastal assets to:

  • Identify environmental effects that may influence the maintenance, renewal, new development or management of assets in the coastal environment over the course of the asset’s design life.
  • Undertake a qualitative risk assessment of environmental effects identified using this guideline.
  • Develop measures to address effects on the Transport Agency’s assets and/or the environment posed by the coastal environment.

The risk assessment process outlined in this guide summarises and documents key threats to assets and coastal environments, enabling project teams to develop suitable mitigation and management solutions. The guide itself does not provide solutions to mitigate the identified issues.

The guide [PDF, 3.6 MB] is now available on the Transport Agency’s Highways information portal. 

Publication details

Author: Highways and Network Operations
Published: March 2017
Version: 004
Found at: https://www.nzta.govt.nz/assets/Highways-Information-Portal/Technical-disciplines/Air-and-climate/Climate-change/Adaptation/Coastal-Effects-Assessment-Guideline-FINAL-March2017.pdf [PDF, 3.6 MB]

Further information

Contact the Highways and Network Operations Environment Urban Design team at environment@nzta.govt.nz.

Neil Cree