Noordtunnel renovation

Schedule

The renovation is divided into several phases, spread over several years. The outdoor work will start in 2026. As much of the work as possible will be carried out without disrupting traffic. For example, work in the service buildings. The bulk of the outdoor work will take place in the spring and summer of 2027 and 2028.

Assessment phase (2025–2026)
Thorough inspections, additional studies, and risk assessments. During this phase, the design will be created and uncertainties will be identified.

Renovation work (2026-2028)
Drawing up a detailed implementation plan, including traffic measures and coordination with partners such as Zuid-Holland Bereikbaar. During two summer periods, the tunnel will be temporarily closed for large-scale work on installations, concrete, asphalt, and cladding. All systems will be extensively tested, including ventilation, firefighting water, lighting, public address, traffic signaling, and emergency communication.

Maintenance phase (until the end of 2039)
The PTZ1 construction consortium will remain responsible for the maintenance of the tunnel until 2039.

Sustainability is an important aspect

Sustainability is being integrated into the renovation of the North Tunnel in several ways. For example, the possibility of using light-reflective asphalt is being investigated, which could significantly reduce the energy consumption of the tunnel lighting. In addition, all installations are being replaced by energy-efficient and future-proof systems that contribute to a lower environmental impact. Where possible, existing infrastructure is being reused to prevent material waste and reduce the project's ecological footprint.

Intended result

The renovation of the Noord Tunnel will lead to a significant improvement in the safety, sustainability, and reliability of the tunnel. The renovated tunnel will comply with the latest technical and safety standards, contributing to more efficient and safer traffic flow on the A15.