The Shire of Carnarvon has revealed the project manager for its flood preparedness plan, which aims to lessen the impact of future floods and includes a 60km aerial survey and 3D modelling. Engineering, architecture and environmental consulting firm GHD has been announced as the project manager, with Shire president Eddie Smith saying the company’s strong track record gives the council confidence the project will be “delivered to a high standard in a timely and cost-effective manner.” The Shire, Department of Primary Industries and Regional Development and Department of Water and Environmental Regulation have formed a working party to implement the project. As part of the project’s Gascoyne River flood modelling component, aerial photography and a light detection and ranging survey have been captured for Carnarvon and a 60km corridor along the river, upstream to Rocky Pool. The survey data will be converted into a digital elevation model, which is a 3D representation of the land surface, which can be used in future stages of the project. Consultants HARC are working on hydrologic modelling, which includes assessing the rainfall and streamflow monitoring information from past events to understand how rainfall is converted to river flows in the Gascoyne River catchment. This modelling will be used to predict river flows for future varying rainfall events. After an extensive search, GHD was appointed as project managers, a role in which it will oversee all aspects, including construction, communications, and stakeholder management. The project aims to mitigate the impact of future flooding events in the region using updated modelling and high-quality technology, repairs to flood levees and a review of drainage systems. The project was established following Carnarvon’s devastating floods in February 2021. Soon after that flooding event, GHD was consulted about the town’s flood levee systems and its recommendations were used in the development of the preparedness project and formed the basis of the funding application for the first stages. “The Shire embarked on a public tender process to appoint a project manager and invited expressions of interest from individual candidates. Ultimately, GHD were the successful applicant and come with significant insight into this vital project, given their initial involvement and extensive experience,” Cr Smith said.