Stage 2 of the Mawhera Quay Flood Protection Wall (Grey Floodwall) is due to get underway with contractors, MBD Contractors Ltd, starting the upgrade on 2 April 2024.
The upgrade, which includes the raising of the stopbanks between Richmond Quay and Anzac Park to meet a 1:150-year flood level, plus providing an additional 600mm of freeboard, will result in the alignment with the previously raised sections along Mawhera undertaken in 2009 and Short Street undertaken in 2020. Stage 2 had been deferred due to cost, but with funding allocated through the Covid Response and Recovery Fund in 2020, the project can now be completed.
Completing stage 2 will provide greater flood protection to the township of Greymouth and additional protection to key assets such as Te Nikau, the region’s primary hospital. This is a vital piece of the flood protection for Greymouth.
Some disruption is expected while the construction to raise the stopbank height takes place. Sections of the bank will be closed at discrete times to allow this work to take place resulting in no public access to the area. A diversion to the West Coast Wilderness Trail will be put in place for works undertaken along the trail. While there will be some truck movements occurring to undertake this work, these are not expected to be disruptive.
The works are expected to take 14 weeks to complete, subject to weather.
