Skanska has won a contract to build 4km of road and rail tunnels, the first tunnelling contract on the Vuosaari Harbour project in Finland.
Construction is expected to get underway imminently on the Porvarinlahti road tunnels, which will feature 1.68km long twin tubes. Each will be some 10m wide by 9m high, driven parallel 10m apart with cross passages at 100m intervals. The Labbacka rail tunnel will be 750m long.
The scope includes the drill and blast rock work, as well as part of the internal construction works. Tunnel design is by Finnmap Infra Oy and Kalliosuunnittelu Oy Rockplan Ltd. Work was due to commence in September with the road tunnel scheduled for completion by 30 August 2006.
At US$28.6M, these are the first contracts to be let on the VUOLI project, the traffic connections for the harbour project in Helsinki being undertaken by the Finnish state and the City of Helsinki.
The routes have been planned as a single entity with the aim of creating smooth connections from the harbour to the national road and rail network. Significant benefits are said to have been realised from this approach. Planning the land traffic connections as one is said to have optimised solutions from the perspective of total costs and environmental impacts.
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Vuosaari plan
