卡子坳隧道 (G234)

460 m at 17.9%

1.2 km at 17.5%

720 m at 15.9%

650 m at 15.6%

440 m at 15.0%

790 m at 14.8%

2.4 km at 14.4%

340 m at 14.2%

520 m at 12.8%

6.7 km at 12.3%

330 m at 11.6%

640 m at 11.4%