In collaboration with our partner Gerrijn, we were proud to support their client ReefSystems with the technical calculations for their innovative MOSES reefs. These concrete reef structures serve two essential purposes: water safety and ecological restoration.
Reinforcing the Lauwersmeer Dike and Enhancing Biodiversity
The Lauwersmeer dike located in the north of the Netherlands no longer meets current safety standards. As part of the reinforcement measures, MOSES reefs are being deployed to protect the dike against rising sea levels and flooding – an important step in making the Dutch coastline future-proof.
At the same time, the reef structures contribute to the recovery of the fragile Wadden Sea ecosystem. The concrete modules create new habitats for marine organisms and stimulate biodiversity. A truly inspiring example of how engineering and nature can go hand in hand.
Construction & Engineering
Each MOSES reef consists of a concrete foundation slab measuring 200 x 200 x 16 cm (approx. 1,600 kg), fitted with 56 hexagonal modules of 23 kg each. The total weight of a single reef exceeds 2,800 kg.
HBP Lifting bolt anchor
For lifting and installation, four galvanized HBP lifting bolt anchors with base plate were applied per reef. Our engineers performed the required calculations to ensure the reefs could be mounted in a safe and efficient manner.
A Reef Full of Life
The unique structure of the MOSES reefs provides abundant space for the settlement of marine life such as shellfish, algae, and other organisms. Through continuous monitoring, the impact on the local ecosystem is being assessed and the reefs’ contribution to a nature-inclusive coastline is being documented.
Learn More?
For more information about this remarkable project, please visit the Lauwersmeer Dike project page on the ReefSystems website.