Route security is crucial as severance, depending on location, can result in detours of hundreds of kilometres. A significant risk to the route security is the continuing threat of coastal erosion and rock fall that have the potential to remove large sections of highway. While flooding and river erosion are also threats to route security, they are more localised and can often be quickly reinstated.
This strategic study has investigated and prioritised the coastal erosion and rock fall risk areas where a forward planning strategy is required. The speed and severity at which coastal erosion and rock fall occur require particular expertise to assess the likely extent of the damage both to road and or users, and to consider the optimum period for timely intervention with capital improvements, or if ongoing maintenance is the most viable solution.
Purpose of this website
This website is designed to inform you of the Agency’s proposed management of the West Coast section of SH6 for the foreseeable future. The NZ Transport Agency is keen to receive your comments on its proposed Strategy before it is formally adopted. Your comments are important and necessary to ensure the NZ Transport Agency has addressed areas that cause greatest concern to the highway’s stakeholders and is your opportunity to raise any further issues.
Purpose of the study
The SH 6 Study aims to identify, investigate and prioritise route security and road user safety issues along the highway from Newman’s Slip (Buller) to Haast Pass (Westland), including risks from rock falls, slope instability, debris flows, flooding (stopbank breaches) and coastal erosion. The output of this study will be a recommended Strategy and Implementation Plan that will detail a practical and affordable management regime of the highway that will range from continuing current practice to investigating and developing new projects as they are required.
Submissions
Submissions closed on Friday 27 November 2009.
