Blankenburg Tunnel

The Blankenburg Tunnel project comprises a critical infrastructure link in the Rotterdam region of the Netherlands, providing a vital motorway connection across the Scheur/Nieuwe Waterweg waterway.

The project consists of three main components: the Maasdeltatunnel, an approximately 1,000-meter immersed water tunnel connecting the northern and southern banks of the Scheur/Nieuwe Waterweg; the Hollandtunnel, a 500-meter land tunnel; and the adjacent motorway infrastructure that connects to the A20 and A15 motorways. All tunnel sections feature 2×3 lane configurations, providing six lanes of traffic capacity.

It became operational in 2024, and the concession runs until 2044.

Sustainability

The Blankenburg Tunnel project incorporates several measures to minimise environmental impact and enhance quality of life for local communities. Noise-reducing asphalt (OPA) and noise barriers reduce acoustic disturbance, while below-ground construction minimises visual and light pollution. The project improves air quality along the A15 and A4 through optimised traffic redistribution. To compensate for nature disturbance, 2.9 hectares of swamp habitats have been created, supporting local biodiversity.