Bridging Technology and Biodiversity: The Driel Weir and Lock Complex

The Driel weir and lock complex, managed by Rijkswaterstaat (the Dutch directorate-general for public works and water management), is a critical infrastructure site ensuring smooth marine traffic and stable water levels in the Netherlands. Usually, such structures follow the principle of form following function, with practical use and efficient water level regulation being the top priority. However, this complex of locks in Driel is so much more than just ordinary: beyond its technical importance, the site has become a shining example of how thoughtful collaboration can foster biodiversity and sustainability.

Taking the initiative for biodiversity

Rijkswaterstaat is known for its commitment to maintaining waterways and roads, but at Driel, the commitment has extended beyond operational excellence to environmental stewardship. As we at SWARCO are responsible for the maintenance of the site in Driel, we recognized the potential of the weir complex’s grounds andtook the initiative to transform the area into a thriving ecosystem. To achieve this, we proposed a series of simple yet impactful interventions to enhance biodiversity while embracing circular practices:

  • Establishing a flower meadow: Transforming a plain green lawn into a vibrant flower area to attract pollinators like bees and butterflies.
  • Installing a bee hotel: Providing a haven for bees, which play a critical role in pollination.
  • Setting up a kestrel box: Encouraging the presence of kestrels, which contribute to the ecological balance.

The transformation was a collaborative effort that involved ecologists, contractors and our service technicians, all united by a shared vision of preserving nature for future generations. Watch the project video:

When nature itself serves as the ultimate problem-solver

In addition to modern, sustainable technologies, a let’s call it “more traditional” method was employed to further reduce environmental impact. A nearby farmer provided with original “self-moving lawnmowers”, powered by grass and cuteness: sheep! These sheep graze in the meadow all year round and supplement the mechanical mowing that is only necessary once a year (and done by a solar-powered mowing robot!). This practice not only minimizes emissions but also contributes to soil health and ecosystem diversity, as unlike their “mechanical coworkers” sheep fertilize while they mow and even bleat for help when they get stuck.

A stork's nest was also added to the grounds, symbolizing the site's commitment to nurturing life at all levels of the ecosystem. Storks promote biodiversity through natural pest control and the preservation of their preferred habitats, serving as indicators of a healthy ecosystem.

​​​​​​​These efforts have transformed the weir and lock complex into a sanctuary for various species while maintaining its operational functionality.

Sustainable practices are an incentive!

Commenting on this initiative, Hendrik Scheper, Service Manager at SWARCO, highlighted the broader benefits:

“I like working at SWARCO because we can think a bit more broadly, and with these types of services we can also contribute to the environment. This is good for SWARCO, good for us and for me personally. But also for the employees, to see that we as a company are also doing something with this”, emphasizing that SWARCO’s commitment to thinking beyond business as usual by contributing to environmental sustainability makes work more personally fulfilling and meaningful - in believing that these efforts benefit the company’s reputation, inspire employees and foster a sense of pride and purpose in their shared contribution to a better future.

A model for future projects

The Driel weir and lock complex now serves as a model for how industrial and infrastructure sites can be repurposed to support biodiversity and sustainability. By integrating ecological principles into operational management, the project demonstrates that infrastructure development and environmental stewardship can go hand in hand.

This initiative underscores an important message: preserving nature is a shared responsibility that requires collaboration, innovation and a willingness to think differently. Together, we can create spaces that are not only functional but at the same time, also thriving ecosystems.

SWARCO. The Better Way. Every Day.