In collaboration with Hoogheemraadschap van Delfland (HHDL) and Van Halteren Infra (VHI), various SPECTER's are integrated within a sheet pile installation project in Gaag, Schipluiden. The Gaag forms an important connection in the water system of Hoogheemraadschap van Delfland. Elver (glasaal) and Three-spined sticklebacks (3-doornige stekelbaars) use this water as a migration route between habitat and spawning grounds, where reproduction occurs. Creating habitats in these waters will increase the survival chances of these  endangered species. With the installation of SPECTERs in this area HHDL and VHI increase the positive environmental impact of this big construction project. We are very happy with this new collaboration and we can't wait to see how this ecosystem will flourish!