The NZ Transport Agency is committed to appropriately protecting and enhancing the environment. To develop each section of the Wellington Northern Corridor an iterative approach to project development and design is used. This approach means that project options and the design of a preferred option happens in a way that responds to a continually growing understanding of environmental effects. This approach imbeds environmental considerations into our project designs, while still being mindful of our objectives of delivering transport outcomes in a financially responsible manner.
By taking this approach, we identify and understand the potential effects of our proposals and use this knowledge to inform both mitigation measures and our RMA consent applications. Mitigation measures form an integral part of our consent conditions and become an enshrined part of the project’s eventual construction when consents are granted.
Below are some particular environmental issues and how we would manage them on the basis of current guidelines or policies. Full details of agreed mitigation measures are available for the sections where consent has been granted (ie Transmission Gully).
Noise levels will comply with NZ Transport Agency Guidelines and the New Zealand construction standard limits. Measures used will include:
Monitoring of noise during construction and advance notification of any unavoidably noisy construction activity.
Haul routes for moving materials will be away from main roads and sensitive residential areas wherever practicable.
Landscaped buffer zones and noise barriers.
Visual impact, landscaping and environmental measures
Careful consideration will be given to native wildlife and habitats, in order to minimise impact and disruption. Landscaping and planting will be used to mitigate the visual impacts of the new road and create a pleasant environment for both road users and others. Culverts will be used and plans developed to manage natural water flows and drainage.
Significant sites - Cultural, historic and environmental
A range of measures are in place to protect cultural, historic and environmental sites.
Liaison will take place with local groups and on site archaeological controls will be in place to ensure that processes are followed.