The Army-Sivas road project, which was first brought to the agenda during the reign of Sultan Abdülaziz in 1875 and which was projected during the reign of Sultan Abdülhamid II in 1880, but which could not be realized due to wars and lack of money, was even prevented to be done by NATO for fear that the Soviet tanks would fall into hot regions, is progressing at full speed, The stages are completed one after another.
Within the scope of the project, there are 24 single tube tunnels with a total length of 10 km in different lengths. Around 1 billion 100 million TL have been transferred to this project, which also includes viaducts and bridges. Topçam Tunnel, one of the most important feet of the Stream Road, will be commissioned during the year.
Within the scope of the century-old Dereyolu project that will connect the Black Sea and the Mediterranean, the Topçam Tunnel, which is constructed in such a way that it passes from under the Akkırık District and extends from the Topçam Quarter, is expected to reduce the distance between the two neighborhoods from 20 minutes to 3 minutes.
The Topçam Tunnel was also favored by Aironn, which was tested by Aironn's AMCA Standards in a testing laboratory and was shipped with tunnel fans.
Topçam Tunnel, which became one of Aironn's mega tunnel references, became the last indicator of Aironn's expertise in highway tunnels.