The 740 million USD project is expected to reduce travel times by 40 minutes.

The Deo Ca Tunnel under its namesake pass on National Highway 1A opened on Monday. The tunnel runs more than 4 kilometers from Khanh Hoa Province to the neighbouring Phu Yen Province.

The second longest road tunnel in Viet Nam, after the one running under the Hai Van Pass, is expected to cut the travel time by 40 minutes and reduce traffic accidents. Deo Ca is one of the highest and toughest mountain passes in Viet Nam, where drivers face constant risks of crashes due to its steep slopes and blind corners. In April, two crashes caused a tailback of 10 kilometers.

A surveillance camera.

Only cars are allowed to use the tunnel, while motorbikes are carried through on trucks. Drivers will have to pay toll fees from September 3.

(Source: VnExpress International)