75th Anniversary Selatin Tunnel ( tr, 75. Yıl Selatin Tüneli), is a road

tunnel A tunnel is an underground passageway, dug through surrounding soil, earth or rock, and enclosed except for the entrance and exit, commonly at each end. A pipeline is not a tunnel, though some recent tunnels have used immersed tube cons ...

constructed on the motorway O-31 / E87 at the province border of Izmir and

Aydın Aydın ( ''EYE-din''; ; formerly named ''Güzelhisar'', Ancient and Modern Greek: Τράλλεις /''Tralleis''/) is a city in and the seat of Aydın Province in Turkey's Aegean Region. The city is located at the heart of the lower valley of ...

, western

Turkey Turkey ( tr, Türkiye ), officially the Republic of Türkiye ( tr, Türkiye Cumhuriyeti, links=no ), is a transcontinental country located mainly on the Anatolian Peninsula in Western Asia, with a small portion on the Balkan Peninsula ...

. It is situated northwest of Aydın and southeast of Izmir, between the junctions Belevi and

Germencik Germencik is a town and a district of Aydın Province in the Aegean region of Turkey. Geography Germencik is located in the middle of the fertile Büyük Menderes (Meander) plain, inland from the Aegean coastal town of Kuşadası, on the Ayd ...

. With its length of , it was the country's longest tunnel when opened on 20 April 2000. Starting on 1 April 1990, its construction was carried out by the joint venture Kutlutaş and Dillingham in

New Austrian Tunnelling method The New Austrian tunneling method (NATM), also known as the sequential excavation method (SEM) or sprayed concrete lining method (SCL), is a method of modern tunnel design and construction employing sophisticated monitoring to optimize various wa ...

(NATM). The cost of the tunnel totalled to US$121 million. The tunnel was initially named after its location in Selatin village of

district. Following its completion, it was renamed in memory of the 75th anniversary of the foundation of the Turkish Republic (1923). As of 2012, it ranks on the second place after the long Ordu Nefise Akçelik Tunnel opened in 2007. It has twin bores of and length, and carries three lanes of traffic in each direction. Each of the bores is wide and high. The tunnel is equipped with a modern electronic road traffic safety and control system as the first ever in Turkey. Speed limit in the tunnel is , which can be reduced to or upon certain conditions. Dangerous goods carriers are not permitted to use the tunnel.

Civil engineering feat

Turkish Chamber of Civil Engineers lists 75th year Selatin Tunnel as one of the

fifty civil engineering feats in Turkey Fifty civil engineering feats in Turkey or more formally 50 works in 50 years is a list published in 2005 by the Turkish Chamber of Civil Engineers about fifty prestigious projects of the civil engineering in Turkey. The list has five subsectio ...

, a list of remarkable engineering projects realized in the first 50 years of the chamber.

References

Road tunnels in Turkey Transport in İzmir Province Transport in Aydın Province Tunnels completed in 2000 {{Turkey-transport-stub

Civil engineering feat

See also

References