Dolenco Tunnel Systems manufactures the Dolenco Drain solutions for tunnels and other underground structures.

We believe in a future with production of products from 100% recyclable or 100% biodegradable materials.

Dolenco Drain is built into the concrete lining, enabling a monolithic structure and thereby permanently preventing pressure on the inner lining in tunnels, on secant pile walls and other underground structures.
It is used for both new and existing structures, thus saving on materials use, construction cost and construction time.
As a safe, fast and durable solution, Dolenco Drain is cost effective both during construction and, by reducing maintenance and repair costs, during the lifetime of the structure.