New setback bunds with repair of existing erosion management structures.

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New setback bunds with repair, replacement or infill of existing erosion management structures.

  • Construct bunds 25-100m from the estuary edge from south of Bridge St to the boardwalk to reduce the risk of flooding to houses and community facilities in South New Brighton Park.
  • Repair, replace or infill existing erosion management structures (reno mattresses, gabion baskets).

A new bund(s) that is set back from the estuary edge in necessary locations from south of Bridge Street to the boardwalk, with erosion management that is repaired, replaced or infilled. It provides the same or a greater level of flood management as other areas in Ihutai/Estuary and reduce the risk of further erosion of the estuary edge. It would reduce the risk of flooding in most of South New Brighton Park, and for houses and community facilities (campground, tennis club etc) that are in or near the park. However, it would not reduce flooding of the existing track in the park. This structure could be raised in the future with some modifications if required.

This option could integrate more easily into the landscape, and would not impact on access to estuary edge to the same extent as a bund on the edge. There would be an opportunity to put a path along the top of it. It would also be less expensive, but would still require a number of consents (which could impact on how long it takes to implement).

We would still need to do further investigations to determine what method of erosion management would be best suited for where. It is likely the whole area would have a range of different forms of erosion management rather than having only one form. The estimated total cost is approximately $1.6-$2.2 million.


Read a detailed description about this option which includes estimated costs, how long it would take to deliver and consenting requirements.

New setback bunds with repair, replacement or infill of existing erosion management structures.

  • Construct bunds 25-100m from the estuary edge from south of Bridge St to the boardwalk to reduce the risk of flooding to houses and community facilities in South New Brighton Park.
  • Repair, replace or infill existing erosion management structures (reno mattresses, gabion baskets).

A new bund(s) that is set back from the estuary edge in necessary locations from south of Bridge Street to the boardwalk, with erosion management that is repaired, replaced or infilled. It provides the same or a greater level of flood management as other areas in Ihutai/Estuary and reduce the risk of further erosion of the estuary edge. It would reduce the risk of flooding in most of South New Brighton Park, and for houses and community facilities (campground, tennis club etc) that are in or near the park. However, it would not reduce flooding of the existing track in the park. This structure could be raised in the future with some modifications if required.

This option could integrate more easily into the landscape, and would not impact on access to estuary edge to the same extent as a bund on the edge. There would be an opportunity to put a path along the top of it. It would also be less expensive, but would still require a number of consents (which could impact on how long it takes to implement).

We would still need to do further investigations to determine what method of erosion management would be best suited for where. It is likely the whole area would have a range of different forms of erosion management rather than having only one form. The estimated total cost is approximately $1.6-$2.2 million.


Read a detailed description about this option which includes estimated costs, how long it would take to deliver and consenting requirements.