Wyndham flood protection upgrade
- Funded: $1.87m by Government
- Total project investment: $2.5m
- Project duration: 2 years
Environment Southland is upgrading existing stop banks in Wyndham township (population 550 +). These upgrades will increase the protection capacity of the stop bank network in line with flood modelling projections based on climate change predictions.
Extensive flooding in Southland in February 2020 saw stop banks in Wyndham tested by floodwaters to near capacity. Emergency management and council staff, alongside Southland emergency services, evacuated 4500+ people throughout the Mataura catchment, including residents in Wyndham.
The Wyndham stop banks were built in the early 1970s following widespread flooding in 1968. They were raised again after severe flooding hit the region again in 1978. The stop banks guard the town against the Mataura River to the north, west and south and its tributary, the Mimihau Stream, to the north.
Government funding received via the Kānoa - Regional Economic Development & Investment Unit (within the Ministry for Business Innovation and Employment) means that Environment Southland can upgrade Wyndham's stop banks at a much reduced cost to Southland ratepayers.
The work to strengthen, raise and reshape Wyndham's stop banks will commence this December-January and be completed over two summers. The following stop banks are being upgraded:
- Wyndham Racecourse stop bank
- Wyndham School stop bank
- Ferry Street, Wyndham Town (Mataura River stop banks)
- Wyndham Golf Course stop bank (Mimihau Right Bank)
- Greater protection for homes, businesses, and communities in Wyndham
- Flood protection upgrade projects completed much sooner
- Preliminary tree work undertaken
- Survey, geotechnical and engineering design work underway