8 October 2018
International Conference Features Hurunui District Council Case Study
Following on from Hurunui District Council’s gold prize award at the 2017 IPWEA NZ Excellence Awards (Institute of
Public Works Engineering Australasia), council engineering assets manager, David Edge, was sponsored to attend the
Bridge Asset Management & Renewal Conference where he would present on how the council managed to cost-effectively save the Leslie Hills Bridge
following a collapsed support pier back in September 2013.
The Australians were keen to hear how this small district in New Zealand not only fixed the immediate problem, but the
remediation was also to later prove its effectiveness in the November 2016 earthquake (where the 7.8 epicentre was just
down the road) and a significant rainfall event in 2017.
Mr Edge did the council and the district proud, delivering a 40 minute presentation to a riveted audience as well as
chairing three 20-minute sessions that looked in greater depth at the process which recognised the value of early
community and stakeholder engagement, a comprehensive communication plan and a strategy for full transparency of process
and decision making.
Mr Edge said that it was a privilege to have been invited to speak at such an auspicious event, and that it was also a
great opportunity for him to be able to see the latest technology and processes in use in Australia and to consider how
this could benefit Hurunui and New Zealand. He also acknowledges that this project’s success was as a result of some
really great teamwork by many parties and that he was the lucky one to receive the gold prize award on their behalf.
Background
On 12 September 2013, a significant rainfall event caused the northern pier to undermine and collapse. The bridge was
cordoned off. Just one week later, the temporary bolstered bridge was reopened to light vehicles (4,000kg max Gross Mass
and max 20 kph).
The full restoration of the bridge was completed in just over a year, which was a significant accomplishment taking into
consideration the requirements for public engagement, consents, design, seasonal access and prior testing to ensure a
satisfactory, cost-effective ‘right-size’ solution.
ends