Commissioned by Rijkswaterstaat, SealteQ worked together with Solidd Steel Structures, as a subcontractor to Siemens, on the corrosion protection of the tainter gates of the Nederrijn and Lek weir ensemble over recent years (2017–2020). This was a remarkable assignment, as it involves three complexes with six enormous tainter gates. Tainter gates have a major impact on water in the Netherlands: they regulate water levels in the major rivers, enabling smooth and safe navigation, and they contribute to national water management.