姜源岭隧道 (G106)

530 m at 14.2%

900 m at 13.3%

310 m at 13.0%

1.9 km at 12.3%

1.5 km at 11.9%

460 m at 11.1%

580 m at 11.1%

1.9 km at 10.9%

490 m at 10.6%

450 m at 10.4%

440 m at 10.3%

4.3 km at 9.9%