Case Study: Petitcodiac River Causeway

In 1968, the construction of a causeway on the Petitcodiac River in New Brunswick, Canada, created a barrier to the migration of naturally occurring fish species. Consequently, several species, including Atlantic Salmon, completely disappeared from the river1.

Petitcodiac River Causeway

In April 2010, the Petitcodiac River Causeway was opened, ending one of Canada’s Longest Environmental Battles, and commencing one of North America’s largest river restoration projects1. For the past 8 years, including 2020, LEG has successfully acquired Topographic LiDAR of the Petitcodiac River to help Hughes Surveys & Consultants Inc. monitor the river as it progresses back to its natural state. The photos and point cloud below demonstrate the riverbank erosion that has occurred since the opening of the causeway.

Riverbank Changes Since Causeway Opening in 2010
Point Cloud of Riverbank Changes Between 2013 and 2018
Riverbank Changes Between 2013 and 2018

LiDAR presents a cost-effective way to precisely measure riverbank erosion and volumetric change for the entire project area.

Leading Edge is proud to lend our expertise in site specific Environmental Monitoring to this Project.

To learn more, please visit petitcodiac.org

Reference 1: http://petitcodiac.org/petitcodiac-causeway/