 Orhangazi Tunnel

The Orhangazi Tunnel (), is a motorway tunnel located at Samanlı Mountains in Marmara Region as part of the Istanbul-Bursa Motorway in Turkey.Situated northeast of Orhangazi town between Laladere and Yeniköy villages on the province border of Yalova and Bursa, it is a twin-tube tunnel of length carrying three lanes of traffic in each direction.