Sozina tunnel (railway)

Sozina tunnel
Official name	Tunel Sozina
use	Railway tunnel
traffic connection	Belgrade – Bar railway line
length	6171 m
Number of tubes	1
construction
start of building	1954
completion	1959
business
operator	Željeznica Crne Gore
map
location
Coordinates
South portal	42 ° 8 ′ 47 "  N , 19 ° 2 ′ 39"  E
North portal	42 ° 11 ′ 53 "  N , 19 ° 4 ′ 20"  E

 Map with all coordinates: OSM | WikiMap

The Sozina Tunnel , Serbian - Cyrillic Тунел бр. 250 "Созина" , translated tunnel no. 250 "Sozina" , is a railway tunnel in southern Montenegro . The 6,171 m long is part of the Belgrade – Bar railway line . It is considered the longest railway tunnel in the country and was the longest tunnel in Yugoslavia under the government of Tito . It crosses under the Rumija mountain range , which separates the Montenegrin Adriatic coast from the lowlands around Lake Skadar . The southern portal is in Sutomore on the Adriatic coast, while the northern portal is a few kilometers south of Virpazar at the foot of the Rumija Mountains.

Construction of the tunnel began in 1954. It was built as part of the new standard-gauge line Bar – Titograd , which was not only intended to become a future section of the Bar – Belgrade connection, but also to replace the narrow-gauge Bar – Virpazar line. The route was opened in 1959.

Six years after the start of operations there was a major water ingress through a karst canal . A 1750 m long drainage tunnel had to be specially built so that the water flowing at 6.5 m³ / min could be drained away. This drainage tunnel is two meters below the main tunnel and 15 m laterally offset in the axis.

Individual evidence

1. ^ ^{A b} Henry Jacolin: Eastern European Railways in Transition: Nineteenth to Twenty-first Centuries . Routledge, 2016, ISBN 978-1-317-14653-7 , pp. 83 ( google.com ).
2. ↑ Beograd – Bar Railway. Retrieved November 18, 2016 . 
3. ^ John Gunn: Encyclopedia of Caves and Karst Science . Taylor & Francis, 2004, ISBN 978-1-57958-399-6 , pp. 1579 ( Google Book ).