Efficient drainage systems are a fundamental requirement for ensuring the safe and long-term usability of transport routes. Minimal requirements for planning and installation as well as a high load-bearing capacity are just as much a focus as cost-efficient maintenance. With a nominal width of up to 300 mm and a safety slot system for lateral and longitudinal inspection, the HYDROblock system – a monolithic drainage system made from ductile cast iron – is suitable for use as roadside drainage, on railway crossings and in heavy-duty industrial applications.