The Mianeh-Ardebil railway route is 175 kilometers long and starts from the Sabz station in the city of Mianeh in East Azarbaijan province and enters the Ardabil station by crossing the edge of the Qezal Ozen river and passing through the mountainous areas at 175 kilometers. The deck system in the first and third parts consists of pre-stressed concrete boxes using the open truss method. In the second part, the deck system is installed asapre-tensioned box. The foundations of the bases and bags are of deep type.