Royal HaskoningDHV South Africa has been appointed by the Johannesburg Roads Agency (JRA) to reduce flood risk and restore flood plains around the City of Johannesburg. The project addresses illegal dumping in the flood plains that causes pollution and encroachment of the rivers. This increases the risk of flooding of vulnerable communities and the risk of damage to existing infrastructure and the environment.
The project involves determining floodlines and performing flood risk assessments for the main rivers in Alexandra, Diepsloot, and Kaalfontein. Using state-of-the-art flood models and the Global Flood Risk Tool, detailed and accurate insights into changing flood risks will be presented. Royal HaskoningDHV will also develop and implement an action plan to restore the capacity of the river channels and flood plains to accommodate flows, and to rehabilitate the riparian zones.
Royal HaskoningDHV’s resilient approach to urban flood management is an integrated, risk-based approach that embraces engineering, spatial planning and socio-economic factors to prevent flooding and protect citizens.