Fort Filips

Since the 1950s, the historic Sint-Filips fortress in the Port of Antwerp has been contaminated by no less than 50 million litres of waste oil and chemicals. After 70 years, Jan De Nul Group finally puts an end to this pollution. Together with our partners, we are currently remediating the site in what has become the biggest rehabilitation project ever in Belgium.
By constructing dykes to protect Antwerp against flooding, we are also contributing to the Sigma Plan. In this way, we will turn the most polluted place in Flanders into a biotope where man and nature can flourish again.

The construction of the dykes on the site of Fort Filips are part of the Sigma Plan. These large-scale dyke works, along the river Scheldt, will protect Flanders against flooding. Furthermore, the creation of unique tidal areas along the river will improve biodiversity.

Due to the wide variety of harmful substances, it is too dangerous to excavate the contamination or treat it on site. That is why we apply an isolation technique here. The contaminated soil and the ruins of the fortress are completely encapsulated in an underground wall of bentonite cement, a kind of clay consisting of very small particles. The wall is placed to a depth of up to 30 metres. As a result, the contaminated soil cannot get through. On top of that, we place an impermeable foil, finished with pure earth.

In this project, Jan De Nul Group demonstrates its versatility and in-house expertise. Jan De Nul is responsible for the construction of the dykes, with subsidiary Envisan taking care of the remediation works and foundation specialist Soetaert installing the bentonite cement wall. As such, Jan De Nul can be responsible for multiple activities within a project.

Jan De Nul Group contributes to the realisation of this ambitious plan with its experience, expertise and equipment. Commissioned by Flemish Waterways plc, we successfully completed the construction of a ring dyke in the valley of the Durme, a tributary of the Scheldt. Part of the area used to serve as a waste dump. We dug up the top layer of 1 metre and disposed of potentially polluting waste in our valorisation centre in Hulsdonk. In the end, we were responsible for the construction of more than 10 kilometres of dyke and the depoldering of more than 100 hectares.

As a result, we created a larger buffer for the Durme, which can be flooded in a controlled manner. The dykes are strong enough to prevent the nearby residential areas from flooding at all times. A valuable nature reserve can now cope with the tides, creating a habitat for all kinds of animals and plants.

"Behind the dyke we are creating a controlled flood area where birds and other animals can thrive."

Michiel Duyvejonck
Site Manager

Fort Filips

Since the 1950s, the historic Sint-Filips fortress in the Port of Antwerp has been contaminated by no less than 50 million litres of waste oil and chemicals. After 70 years, Jan De Nul Group finally puts an end to this pollution. Together with our partners, we are currently remediating the site in what has become the biggest rehabilitation project ever in Belgium.
By constructing dykes to protect Antwerp against flooding, we are also contributing to the Sigma Plan. In this way, we will turn the most polluted place in Flanders into a biotope where man and nature can flourish again.

Take a tour on site with Project Lead Steven De Coen and Site Manager Michiel Duyvejonck.

WATCH VIDEO

Due to the wide variety of harmful substances, it is too dangerous to excavate the contamination or treat it on site. That is why we apply an isolation technique here. The contaminated soil and the ruins of the fortress are completely encapsulated in an underground wall of bentonite cement, a kind of clay consisting of very small particles. The wall is placed to a depth of up to 30 metres. As a result, the contaminated soil cannot get through. On top of that, we place an impermeable foil, finished with pure earth.

In this project, Jan De Nul Group demonstrates its versatility and in-house expertise. Jan De Nul is responsible for the construction of the dykes, with subsidiary Envisan taking care of the remediation works and foundation specialist Soetaert installing the bentonite cement wall. As such, Jan De Nul can be responsible for multiple activities within a project.

Jan De Nul Group contributes to the realisation of this ambitious plan with its experience, expertise and equipment. Commissioned by Flemish Waterways plc, we successfully completed the construction of a ring dyke in the valley of the Durme, a tributary of the Scheldt. Part of the area used to serve as a waste dump. We dug up the top layer of 1 metre and disposed of potentially polluting waste in our valorisation centre in Hulsdonk. In the end, we were responsible for the construction of more than 10 kilometres of dyke and the depoldering of more than 100 hectares.

As a result, we created a larger buffer for the Durme, which can be flooded in a controlled manner. The dykes are strong enough to prevent the nearby residential areas from flooding at all times. A valuable nature reserve can now cope with the tides, creating a habitat for all kinds of animals and plants.