Azerbaijan, Baku, July 31 /Trend/
Mahmoud Ahmadinejad inaugurated country's longest twin tunnel in Zanjan- Tabriz route, IRNA reported.
The tunnel located by the end of Zanjan-Tabriz freeway, 25 kilometers from Tabriz, each tunnel length 2,5 kilometers and 11 meter width.
Total of $100 million invested in the tunnels and by it's launch Zanjan Tabriz free way projects will also complete.
Zanjan Tabriz free way has 285 kilometer length and one of the biggest civil projects which joins part of Tehran- Bazargan free way.