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February 26, 2015

Norway’s Jernbaneverket and Condotte sign $158m contract for Follo Line Project

The Norwegian National Rail Administration (Jernbaneverket) has signed a NKr1.2bn ($158.37m) EPC contract with Società Italiana per Condotte d’Acqua (Condotte) for the Follo Line Project in the country.

By Samseer M

Jernbaneverket

The Norwegian National Rail Administration (Jernbaneverket) has signed a NKr1.2bn ($158.37m) EPC contract with Società Italiana per Condotte d’Acqua (Condotte) for the Follo Line Project in the country.

Under this deal, which is the first of five EPC contracts, Condotte will carry out excavation using drill and blast, and drill and split techniques.

Jernbaneverket deputy director general Gunnar Løvås said: "Condotte has wide experience directly relevant for the challenging scope of the Follo Line Project, including experience with tunnelling by drill and split.

"This technique will be crucial for some of the tunnelling close to Oslo."

Works under this contract will take place in the Ekeberg Hill, where a three-track tunnel is to be built combining the inbound Østfold line, the inbound and outbound Follo Line.

"This technique will be crucial for some of the tunnelling close to Oslo."

It also includes construction of the twin tube Follo Line tunnel between the exit of the three track tunnel and 1.2km into the mountain/hillside, including the cross passages between the tunnels and the crossing of Ekeberg Oil Depot and re-routing of a river in tunnel.

In addition, construction of the south portal as a concrete culvert, crossing underneath a road, rebuilding of a ventilation tower and a railway bridge, also forms part of this contract.

The 22km-long Follo Line Project is currently the largest transport project in Norway and it includes a 20km-long tunnel, which is the longest railway tunnel to date in the Nordic countries.

The project is being executed by the Norwegian National Rail Administration (NNRA) on behalf of the Ministry of Transport and Communications.


Image: The contract covers excavation by drill and blast, and drill and split techniques. Photo: courtesy of Jernbaneverket.

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