After the devastating earthquake on 14 November 2016 Kaikoura was effectively shut off from the rest of New Zealand. The coast road and the 83km long inland road (route 70) from Waiau were both impassable. On Route 70 alone there were more than 50 slips to clear, damaged roads to work on and an entirely new diversion road to build around the unstable Whalesback section.

Work started almost immediately on the inland road and the decision was made to use the Euroflo® range of culverts to ensure a speedy, safe and efficient outcome. Sizes from 400mm to 1200mm were all used, close to 100 lengths in all. The longer lengths that Euroflo® could provide (5.5metres) and the ease of handling all meant less manpower was needed and they were faster to install. The strength of the system also meant that it was well suited to be used as roading culvert.

And at 8am Monday 19 December the road was re-opened for two-way traffic for the first time since the earthquakes.