Public procurement notice: Contract Award Notice
Published: 2019-02-22
Buyer: Statens vegvesen
Country: NO
Contract type: Works
Procedure: Open procedure
CPV classification: 45000000: Construction work | 45221247 | 45233120: Road construction works
Award criteria: Lowest price

Technical requirements: A new county road, 6312 along Berfjorden in Roan Municipality in Trøndelag County is to be constructed. New county road 6312 is an avalanche/landslide measure that comprises the construction of 2 tunnels, Måvik tunnel and Berfjord tunnel, of 920 m and 670 m respectively, in addition to road in the open air for approx. 1.1 km.
The new county road is to be constructed in 2 sub-stretches from Måvika to Inner Berfjorden for the Måvik tunnel and from Jektvika to Ramsvika for the Berfjord tunnel. The lot start for the first sub stretch is just under 2 km from the centre of Roan, and the lot start for the second sub-stretch is approx. 3.9 km from the centre of Roan.
The existing road is to be made wider and get a new superstructure on the first sub stretch from the lot start at profile -100. A new exit is to be constructed to a boathouse and a lay-by on the right side of the road. The road then crosses Måvikbekken before it goes into a 2-sided cutting before the portaling area for the Måkvik tunnel. The Måvik tunnel starts at profile 160 and ends at profile 1080 in Inner Berfjorden. The tunnel has a summit of approx. 110 m from the portaling in Inner Berfjorden. An oil separator and a washing water tank are to be constructed in Måvika. The road goes in the open air in Inner Berfjord through a 2-sided rock cutting with heights of up to 18 m. A stopping lay-by is to be constructed on the left side of the road before a new road joins the existing road at approx. profile 1 300.
Sub stretch 2 starts at profile 1910. A new road is to be constructed here by the side of the current road up until the tunnel portaling at profile 2240. 2 new exits are to be constructed that will connect 3 access roads to the county road. A stopping lay-by is to be constructed on the right side of the road. The road goes through a 2-sided rock cutting up until the portaling for Berfjord tunnel at profile 2240. The tunnel ends at profile 2910. The road has its highest point approx. 60 m into the tunnel, at profile 2300. An oil separator and a washing water tank are to be constructed in Ramsvika. A stopping lay-by is to be constructed on the left side of the road, and an exit for access to the oil separator/washing water tank is to be constructed on the right side. The road goes through a one-sided rock cutting before the new road joins the existing road at approx. profile 3200.
The tunnel portals are planned to be 8 m in Måvika and Jektvika. The portals in Inner Berfjord and Ramsvika are planned to be 10 m. The final location of the portaling and tunnel portals will be decided when condition of the rock has been clarified.
The existing road has many corners, is narrow and very exposed to avalanches/landslides. The stretch has bad accessibility and an annual daily traffic count of 380 vehicles, with a heavy traffic share of 15 %.
Due to the traffic situation and the avalanche/landslide danger along the existing road, the plan is that Måvik tunnel will be tunnelled from the north (in Måvika) towards the south. This will be done in order to avoid increased traffic on the existing road that is exposed to avalanches/landslides. Chapter A3 .10.1 Ensuring Safety in the construction phase, describes this in more detail.
The choice of which end to start the tunnelling from is more open for Berfjord tunnel. Sufficient landfill sites have been developed along the road, so that the tunnel matter can be deposited. There is also a contract with Roan Municipality on filling in an industrial area by the salmon slaughterhouse in Kråkøya, approx. 4 km from the tunnel portaling in Ramsvika, for the delivery of 50 000 m
Areas have been put aside for permanent storage of matter from the project. The land fill areas are shown in green in figure 1. The contractor must prepare a plan for matter disposal and the closure of the land fill areas. The areas must be covered with available uncompacted matter and a temporary vegetation cover in order to facilitate natural re-vegetation. In the development plan for county road 6312 Berfjorden, there are separate provisions for the land fill areas


Winner: Implenia AS
Number of bids: 6