Sigmaplan: The revival of the Hedwige-Prosperpolder

In 2005, the Vlaamse Waterweg (back then still under the name Waterwegen en Zeekanaal) commissioned an Environmental Impact Assessment (EIA) for the Hedwige-Prosperpolder. This cross-border project required permits from both Flanders and the Netherlands. The challenge was to give space back to the river and restore natural processes. This meant returning the polder to nature, with the goal of allowing the Scheldt to regain its former dynamics. Additionally, the area would serve as a new habitat for birds, fish, and other aquatic organisms. Creating a rich and diverse ecosystem was the top priority.

The area has since evolved into a varied landscape of creeks and channels. Nature has not only adapted but embraced the space as if it had always been this way. Birds now find nesting sites, fish swim freely through the channels, and the entire ecosystem is flourishing. The Hedwige-Prosperpolder has become a place where nature can take its course, where biodiversity increases, and where the Scheldt finds new life. The project demonstrates how nature, when given the chance, reveals its resilience.

In a project of this scale, it is essential to involve the local community and stakeholders. From the outset, there has been close consultation with all parties involved. The polder needed to offer value not only for nature but also for the surrounding area. With the upcoming construction of a unique panoramic tower, complete with a restaurant and hotel, the area promises to become an even greater attraction for nature lovers and locals alike.

The Hedwige-Prosperpolder is a beautiful example of how we can create space for nature in a rapidly changing landscape. The area connects with the Land of Saeftinghe and is now part of the Grenspark Groot Saeftinghe. By restoring the estuary’s natural flow, we not only foster a richer ecosystem but also contribute to the protection of surrounding areas. In this way, we move closer each day to resilient coasts and rivers.