Koznitsa (tunnel)

Koznitsa
Overview
Line	Sofia–Karlovo
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 in the Stara planina (Balkan Mountains), the longest tunnel in Bulgaria. The tunnel is located between the Bulgarian railway stations of Koprivshtitsa and 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.
^ Деянов, Димитър (2005). Железопътната мрежа в България 1866-1975 (in Bulgarian). София: изд. "Булхаус" Стара Загора. p. 224. ISBN 954-9364-05-4.

Coordinates: 42°41′54″N 24°22′55″E / 42.69833°N 24.38194°E / 42.69833; 24.38194

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[1] Рулев, Димитър; Марков, Минчо (2007). Електрифицираните железници на България, т. 1 (1903-1995) (in Bulgarian). София. p. 276.

[2] Деянов, Димитър (2005). Железопътната мрежа в България 1866-1975 (in Bulgarian). София: изд. "Булхаус" Стара Загора. p. 224. ISBN 954-9364-05-4.

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