The expressway H6 Koper – Izola runs in a double-tube two-lane tunnel from the cliff of the Markovec hill on the Koper side to the end of the Pivol stream valley on the Izola side. The length of the right tunnel tube is 2,144 m, and the left tube 2,174 m. The total width amounts to 7.70 m. The vertical height of the driving clearance is 4.70 m.
On 17 January 2012, the contractors broke through the right tunnel tube and on 14 May 2012 through the left tunnel tube.
According to anticipations, the tunnel should be finished by the middle of 2013.
Within this project, the investor of which is DARS, d.d., DRI carries out consultancy services and supervision over the tunnel construction.