Over the past five years, the Greater Montréal Area has experienced multiple significant flooding events, which together displaced tens of thousands from their homes and cost millions to local and regional governments. NV5G was contracted to conduct aerial topobathymetric lidar surveys of the region’s 28 main watercourses, with the goal of updating flood zone mapping and creating an online tool to warn citizens of incoming flooding using high-precision water flow modeling and real-time water level measurements. Click below to read the full story on Canada’s largest riverine topobathymetric lidar survey.