| Overview | |
|---|---|
| Line | Sofia–Karlovo–Burgas |
| Operation | |
| Constructed | 1949–1951 |
| Opened | June 6, 1951 |
| Owner | National Railway Infrastructure Company |
| Technical | |
| Length | 5,808.5 m |
| No. of tracks | single track |
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in) (standard gauge) |
| Electrified | ~25 kV 50 Hz |
| Highest elevation | 818 m |
| Lowest elevation | 798 m |
| Grade | 2.0‰ / 6.4‰ |
| Route map | |
  Koznitsa (tunnel) (Bulgaria) | |
Koznitsa (Bulgarian: Козница [ˈkɔznit͡sɐ]) is a railway tunnel under the Koznitsa ridge in the Stara planina (Balkan Mountains), the longest tunnel in Bulgaria. The tunnel is located between the Bulgarian railway stations of Koprivshtitsa and Stryama and is 5,808 m long.[1][2]
References
- ↑ Рулев, Димитър; Марков, Минчо (2007). Електрифицираните железници на България, т. 1 (1903-1995) (in Bulgarian). София. p. 276.
{{cite book}}: CS1 maint: location missing publisher (link) - ↑ Деянов, Димитър (2005). Железопътната мрежа в България 1866-1975 (in Bulgarian). София: изд. "Булхаус" Стара Загора. p. 224. ISBN 954-9364-05-4.
42°41′54″N 24°22′55″E / 42.69833°N 24.38194°E
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