Osmangazi Tunnel

Osmangazi Tunnel
Osmangazi Tüneli

Osmangazi Tunnel (south side)
Overview
Location VezirhanBilecik, Turkey
Coordinates

40°10′58″N 30°00′57″E / 40.18278°N 30.01583°E / 40.18278; 30.01583Coordinates: 40°10′58″N 30°00′57″E / 40.18278°N 30.01583°E / 40.18278; 30.01583

Osmangazi Tunnel
Location of Osmangazi Tunnel in Turkey
Status Operational
Route
Operation
Work begun 2003
Opened 2010
Operator General Directorate of Highways
Traffic automotive
Technical
Length 2,465 and 2,474 m (8,087 and 8,117 ft)
Number of lanes 2 x 2
Operating speed 80 km/h (50 mph)

The Osmangazi Tunnel (Turkish: Osmangazi Tüneli), formerly Kocatepe Tunnel, is a road tunnel constructed on the AdapazarıBilecik state highway in Bilecik Province, western Turkey.

It is situated between Vezirhan and Bilecik bypassing the Gülümbe Pass with hairpin turns. The 2,465 and 2,474 m (8,087 and 8,117 ft)-long twin-tube tunnel carries two lanes of traffic in each direction. The 745 and 840 m (2,444 and 2,756 ft)-long Ertuğrulgazi Tunnel is located north of it. The highway Mekece-Bilecik-Bozüyük on the north-south directed D.650 at a distance of 86 km (53 mi) is a heavy traffic route for transport of industrial and agricultural products connecting the regions Marmara, Aegiean, Central Anatoli and Mediterranean.[1]

In 2000, a financial agreement was signed between the Turkish and Japanese governments to build a divided highway with two tunnels at the steep pass. Construction works on the highway began in 2003, and in 2010 the route was put into service.[1] The tunnel was initially named Kocatepe Tunnel, but was renamed in 2009 in honor of Osman Gazi (1258–1326), who founded the Ottoman Empire in the region.[2]

References

  1. 1 2 Ay, Hasan & Zeynel Yaman (2014-01-01). "'Hadi gülüm be' bitti, 'Oh be' geldi". Sabah (in Turkish). Retrieved 2014-05-08.
  2. "Bilecik'te köprü ve tünellerin isimleri değişiyor". Hürriyet (in Turkish). 2009-03-04. Retrieved 2014-05-08.


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