Railway line crosses Erbil- Altun Kopri Road at station Km 21+985. In the content of the rehabilitation of the road project, a railway underpass is planned at this location. A reinforced concrete box frame structure which provides 12.0m clear Width and 6,5 m vertical clearance above top of rail is designed for double track Railway line. The underpass is approximately 58 degree skew and 60 m long.
- Prepare the alignment alternatives
- Preliminary and Final Design