In 2009 Tonkin & Taylor Ltd were engaged by Hawke’s Bay Regional Council to undertake a preliminary assessment of the bank stability over a 12km reach of the lower Wairoa River, extending from approximately 3km downstream to 9km upstream of the SH2 bridge in Wairoa town.The purpose of the study is to provide a preliminary assessment of the existing...

Much of the settled Hawke’s Bay region is low lying and built on river flood plains. This brings the risk of flooding, which is our most common natural hazard - a severe storm or flood happens every 10 years on average. Major storms affect wide areas and can be accompanied by strong winds, heavy rain or snowfall, thunder, lightning, and rough seas. They...

Boat safe distance depth - generalised 50m

This dataset is a subset of data, prepared by the Institute of Geological and Nuclear Sciences for the Hawke's Bay Regional Council, designed to help the Council plan to reduce the adverse impacts of future earthquakes. This data set refers to polygons in Hawke's Bay within each of which the ground has been assigned a uniform class of response to seismic...

The coastal inundation hazard is determined based on permanent and extreme inundation along the open coast for present day and for the years 2065 and 2120. Permanent inundation is defined as the result of a rise in sea level on the astronomic tidal processes, whereas extreme inundation is a result of storm effects in addition to the astronomic tide level...