Terowongan Zhongnanshan
 | |
| Ikhtisar | |
|---|---|
| Lokasi | China Qinling Mountains |
| Status | Active |
| Rute | G65 Baotou–Maoming Expressway |
| Mulai | Xi'an Chang'an District |
| Berakhir | Shangluo Town |
| Operasi | |
| Mulai dibangun | March 2002 |
| Dibuka | 22 December 2007 |
| Teknis | |
| Panjang | 18.040 km (11.210 mi) |
| Jumlah lajur | Two in each tunnel |
| Kelajuan yang diizinkan | Speed limit: 80 km/h (50 mph) |
| Ketinggian maksimum | 1026m |
| Ketinggian minimum | 896m |
| Lebar | 10.9m |
| Kemiringan | 1.1% |