Contract news: Auckland City Rail Link – C5 and C7

The Link Alliance has been awarded a further two important contracts for Auckland’s City Rail Link project (CRL).


The contracts are known as C5 and C7 and are variations to the project’s existing C3 tunnels and stations contracts. The valuation of C5 and C7 is NZ$825 million which is included in the overall NZ$4.4 billion cost of CRL.

Link Alliance’s existing C3 contract involves the construction of two new underground railway stations near Aotea Square and Karangahape road in Auckland central, the redevelopment of the railway station at Mount Eden and the tunnels connecting them. The two new stations will be designed to carry larger nine-car trains to better meet the needs of a growing city.

The C5 contract includes: track alignment in multiple stages with associated overhead line and signalling plant and equipment relocations; rebuilding and extending the existing Mt Eden station platform including egress footbridges; and building two new public pedestrian footbridges and a new road bridge, heavy retaining structures
and earthworks associated with the grade-separated tracks.

The C7 contract includes the provision of track installation, overhead line, signalling, control systems, communication systems, control room fit out and building works and auxiliaries as well as installation of rail systems, testing and commissioning and operational readiness.

The Link Alliance is a consortium comprising Downer New Zealand, Soletanche Bachy International (NZ), Vinci Construction Grands Projets, AECOM New Zealand, Tonkin + Taylor, and WSP New Zealand working with City Rail Link Limited.