Five tunnels in South Holland future-proof in nine years through portfolio approach

Most tunnels in South Holland were built at the end of the last century and the beginning of this century. Due to aging and intensive use, they need to be renovated to ensure they remain safe and available in the future. Within the South Holland Tunnel Renovations Project (PTZ), Rijkswaterstaat has deliberately opted for a portfolio approach; a bundled approach in which five tunnel renovations will be carried out by 2032. This will accelerate the complex task at hand and enable much more effective collaboration with the market, sharing and retaining knowledge. Tunnel Engineering Consultants (TEC), a joint venture of Haskoning and Witteveen+Bos since 1988, has been contracted to provide the engineering services.

Read the full article here (in Dutch) - published in GWW Magazine.