Van Hattum and Blankevoort wins tender for Zuidasdok tunnel

Space

As a result of the construction of the motorway tunnel, more space will be created for the city and its residents and there will be more space for green areas. It will also help reduce noise nuisance for the local community. At the same time, the tunnel will make it possible to expand Amsterdam Zuid station. The station will soon serve as a hub for international connections, relieving pressure on Schiphol and Amsterdam Central Station. Part of the wider A10 Zuid will be diverted through a tunnel. The road widening will reduce city centre traffic, improve traffic flow and make it safer, enabling better connections with the northern Randstad. All of this underscores how important the Zuidasdok tunnel will be, both regionally and nationally. At a length of more than a kilometre, the tunnel will be to the north and south of Amsterdam Zuid station. Work on its construction is expected to start in 2027.

Construction method

The construction methods chosen, effectively reducing implementation risks, played an important role in the choice of the winning construction consortium. Frans de Kock, project manager Zuidasdok Tunnel: ‘By building the tunnel, we’re making space in a very busy part of the city, in order ultimately to create added space. The construction work will be intensive, which makes it particularly important to have a builder who understands the needs of this very specific city location.’

‘Simplicity where possible and a bespoke approach where necessary’, says a spokesperson for Van Hattum en Blankevoort. ‘By combining a range of construction techniques, including cutter-soil mixing technology, we’re ensuring stability and a robust construction of the tunnel and the adjacent structures.’ In addition, the accessibility of the A10 Zuid, the city roads and Amsterdam Zuid station will remain as far as possible guaranteed during the works. 

Contract

Zuidasdok is awarding two contracts: one contract for the design of the northern and southern tunnel and one contract for the realisation of the tunnel itself. The realisation of the northern and southern tunnel will be included in a single contract, but the work will initially be commissioned in smaller units. Both contracts will be awarded to the same construction consortium. These contracts will be a bespoke construction team agreement for the design through to the Definitive Design and an engineering & construct contract. For the awarding of these contracts, a guide price of € 895 million will apply, based on prices as of January 2023.

Zuidasdok