Fully-cast rainwater tunnels are designed to be an environmentally friendly solution for rainwater drainage, which helps to spare the existing sewage system. Additionally, the rainwater that seeps from the tunnel and penetrates the ground helps to replenish groundwater.

The rainwater tunnels have closed ends on both sides and are delivered with one access shaft for cleaning and inspection purposes. They also come standard with a buoyancy protection edge.

These tunnels are specially designed for professional rainwater management, and each module can be inspected and cleaned as needed. The system is safe, fast, and easy to install, and the infiltration capacity of the soil in which the rainwater tunnel is to be installed is always taken into account.

Our rainwater tunnels are made from fiber-reinforced composite material and do not require geotextile or other forms of protection before being covered.