Crystal Twin Culvert was destroyed in the flooding caused by Cyclone Gabrielle in February 2023. In addition to the 35m gap created in the road, there were significant drop-outs and slips along Matahorua Road that severely limited access. In the immediate aftermath, Council’s roading team and contractors focussed on reconnecting communities and restoring access as quickly as possible. Temporary access for 4-wheel drive vehicles was established upstream of the Crystal Twin culvert by May 2023 while a permanent solution was investigated. Construction of that permanent repair is now underway and will be completed in the 2024-25 financial year.
A new and larger culvert is being installed, with Matahorua Road rebuilt above it. The photos below show the scale and progress of the works up until 8 February 2024.
As well as the destruction of the Crystal Twin Culvert, another four large culverts and thirteen bridges were destroyed. The focus now is on repair and restoration across the network. A programme of rebuilds and repairs has been developed with an estimated cost of $800 million. Due to the scale and complexity of the work required, this will likely take seven to ten years to be completed. Hastings District Council is prioritising work based on the vulnerability of roads to new weather events, levels of road use and the numbers of people affected.
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