Facilities on the track
| number of tunnels: | 7 (T1, T2, T3, T4, T5-6, T7, T8) |
| T1: | 6.714 m |
| T2: | 6.017 m |
| T3: | 335 m |
| T4: | 1.949 m |
| T5-6: | 513 m |
| T7: | 1.154 m |
| T8: | 3.808 m |
| total length of tunnels
(without service pipes): |
20,5 km |
| longest tunnel: | 6.714 m |
| number of viaducts: | 3 (Glinščica, Gabrovica, Vinjan) |
| Glinščica: | 215 m |
| Gabrovica: | 416 m |
| Vinjan: | 620 m |
| total length of viaducts: | 1.251 m |